Describe the four sources of evidence for evolution upon which Darwin based his ideas in common descent.

Answers

Answer 1

Answer:

- Fossil record

- Geography

- Embryology

- Comparative anatomy

Explanation:

The four types of evidence for evolution upon which Darwin based his ideas were:

1-The geographic distribution of related species. The theory of evolution states that species evolve in geographic areas that were colonized by their ancestors.

2-The fossil record shows successions of organisms through time

3-Embryology: animal embryos in related species are very similar in the early stages of development but differentiate as they grow, thereby suggesting these species evolved from a common ancestor.

4-Comparative anatomy demonstrates physical and structural similarities between species. The species share anatomical similarities because they descend from a common ancestor (i.e., presence of homologies).

Answer 2

Evolution by Darwin was based on the development of the species from the ancestors.  The evidence for evolution are fossils, geography, anatomy, and embryology.

What are the pieces of evidence of evolution?

The Darwin theory was based on the evolution of the species from their ancestors. The time period has resulted in the change in the features that are based on natural selection.

The evidence for evolution proposed by Darwin is fossil records, comparative anatomy between the species, geographical changes in the species relation, and the embryonic similarities with the evolution.

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Related Questions

What natural object inspired the structure of a road reflector? O A Aball-and-socket joint B. A fish's swim bladder O c. A burr D. A cat's eye

ONLY SAY THE RIGHT ANSWER IF YOU DONT KNOW IT DONT ANSWER​

Answers

Answer: a cats eye

Explanation:

Which describes an atom that has fewer neutrons than protons and more electrons than protons?

Answers

Answer:

An atom that has fewer neutrons than protons and more electrons than protons is an anion.

Please help I’m limited in time and have so many questions!!
What makes an organism more likely to survive and do well in its environment?
1. Stabilizing selection
2. Vibration
3. Artificial selection
4. Adaptation

Answers

Answer:

Adaptation because they are traits that increases an organism's ability to survive and reproduce.

Pesticide resistance is increasing, Farmers in the US tost 7% of their crops to pests in the 1940s, over the 1980s and 1990s, the loss
was 13%, despite more pesticides being used. It is estimated that 500-1000 pests have developed a resistance to pesticides. Consider
the diagram showing the evolution of pesticide resistance. Select ALL of the statements that do NOT accurately describe the
mechanisms of pesticide resistance shown in the graphic.
A)Insects that are sensitive to the pesticide all die out after the first
application, leaving only the resistant insects in the population,
B)When insects are exposed to the pesticide, some will develop a mutationmaking it resistant. Only these insects survive in the next generation
C)The first generation has an insect with a gene responsible for resistance toa pesticide. This allows it to survive the pesticide application and reproduce
D)The insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this
trait become more prominent in the population
E)As a population of insects is exposed to a pesticide, those susceptible to
the pesticide will die out of the population, leaving those with a resistance
to survive and reproduce, becoming more common in the population

Answers

The insect with the pesticide resistance gene reproduces, these insects are more likely to survive pesticide application  hence insects with this trait become more prominent in the population

What is a pesticide?

A pesticide refers to a chemical that is used to control the spread of pests in the farm.

The question is incomplete but I will help you the much I can. We know that organisms that have favorable traits live long enough to reproduce and pass on these favorable traits to the next generation. Therefore, the insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this trait become more prominent in the population

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I need Help with this.
Answer it for me plz

Answers

It’s D (example a turtle draws its head back into its shell when it’s shell is touched) I’d say it’s kinda of the same as odor (if u already answered it then dang)

BIOLOGY QUESTIONS PLEASE HELP!!!!!!! Brainliest to whoever answers all of them

Answers

Answer:

segmented

Explanation:

trust me. thank me later

Answer:

pretty sure you have the answer by now so thanks for the Points

Explanation:

Explanation:

How does the integumentary and immune systems work together?
*summary and not too detailed*

Answers

They both work by being an immune system

A population of large predators in an ecosystem has been trapped and removed from the area. How would this event most likely change the food web in this ecosystem?

Answers

When a top predator is removed from an ecosystem, a series knock-on effects are felt throughout all the levels in a food web, as each level is regulated by the one above it. This is known as a trophic cascade. The results of these trophic cascades can lead to an ecosystem being completely transformed. The impacts trickle down through each level, upsetting the ecological balance by altering numbers of different animal species, until the effects are finally felt by the vegetation.

As per the given scenario, the number of small predators will decrease and the number of herbivores will increase. The correct option is C.

A reduction in the pressure of large predators on herbivores would follow from their disappearance.

Since there would be less threats to them from predators, the population of herbivores would probably rise.

The effect would be a reduction in the population of tiny predators, which may have previously depended on the huge predators as a food source.

As a result of this adjustment, the ecosystem's small predator population would decline while the population of herbivores would expand.

Thus, the correct option is C.

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Your question seems incomplete, the probable complete question is:

A population of large predators in an ecosystem has been trapped and removed from the area. How would this event most likely change the food web in this ecosystem?

A.

The number of herbivores will decrease and the number of producers will increase.

B.

The number of herbivores will increase and the number of producers will decrease.

C.

The number of small predators will decrease and the number of herbivores will increase.

D.

The number of small predators will decrease and the number of omnivores will decrease.

How do the organ systems function together in the human body?

Answers

Answer: organ system work together to accomplish their task so the diffrerent organ systems also cooperate to keep the body runing

Explanation:

7 points for each answer plus a brainliest (picture of the chart shown)
Sophia discovered two objects in space with the help of her telescope. She noted down the characteristics of the objects in the chart below.

Which of these statements is most likely correct about Object 1 and Object 2 discovered by Sophia?
A. Object 1 is an inner planet and Object 2 is a comet.
B. Object 2 is an inner planet and Object 1 is a comet.
C. Object 1 is an outer planet and Object 2 is an asteroid.
D. Object 2 is an outer planet and Object 1 is an asteroid.

Answers

Answer:

C. Object 1 is an outer planet and Object 2 is an asteroid.

Explanation:

While inner planets can have moons, many moons are a more common feature of outer planets (ex. Jupiter has 79 moons, while Mars has 2). Plus, moons don't orbit asteroids or comets since moons are usually larger. This rules out any of the options involving Object 1 being an inner planet, comet, or asteroid. As for object two, both an asteroid or a comet would make sense as they both have irregular shapes. The only answer that has Object 1 as an outer planet is C. Also Object 1 has rings, which shows that it's an outer planet.

Variation in great horned owl body size due to food supply can / cannot be acted on by

natural selection.

Answers

Answer:

Variation can be acted on by natural selection.

Explanation:

Variation are the difference that exist in the organism in terms of the body size and can be acted upon by natural selection.

Natural selection could act on the owl body size, favor the selection of owl with small body size especially when resources available are limited and can only sustain small number of individuals leading to availability of owl with small body size in such area and a gradual reduction in the number of owl with large body size.

Which conclusion BEST describes the data in this table in reference to all life on Earth?
O Organisms have different proportions of bases in their DNA.
O Plants are least related genetically to other organisms on this table.
0 Animals have similar amounts of bases in their cells.
O The genetic code is exactly the same among all living organisms.
• Previous
Next

Answers

The area is 705.86 ok ok cool lols big Pisa

Which of the following is NOT an example of a chemical reaction?
A)
Oxidation
B)
Decomposition
C) O Combustion
D)
Sublimation

Answers

Answer:

Sublimation

Explanation:

Sublimation is a physical change, not a reaction. There are five main types of chemical reactions: combination, decomposition, single-replacement, double-replacement, and combustion.

.ما مصدر الأكسجين المتفاعل مع سكر الجلوكوز

Answers

يأتي الأكسجين الذي تستخدمه الحيوانات للتنفس الخلوي من النباتات وكائنات التمثيل الضوئي الأخرى. متفاعلات التنفس الخلوي في الحيوانات هي نتاج تلك الموجودة في النباتات ، لذلك كل شيء يعمل بشكل جيد.

(أنا لا أتحدث العربية ، لقد استخدمت ترجمة جوجل لذلك أعتذر عن أي أخطاء)

Which two conditions do most seeds need in order to germinate?
A. Adequate sunlight
B. Enriched soil
C. Adequate water
D. Warm temperatures

Answers

Answer:

I believe it is a and c because plants need sunlight and water

Explanation:

The correct answer of the question about seed germination is that Adequate water and Enriched Soil are the two most important condition in order to germinate seed.

What do you mean seed germination?The fundamental process by which many plant species develop from a single seed into a plant is known as seed germination. This method has an impact on crop output and quality.The growth of a seedling from an angiosperm or gymnosperm seed is a frequent example of seed germination.Rapid water uptake by the seeds during the early stages of germination causes swelling and optimal temperature induced softening of the seed coat. Imbibition is the name given to this phase. Enzymes are activated to begin the growth process. The seed starts to create proteins, respire, and metabolise the food that has been stored after activating its internal physiology. This is the lag phase of seed germination.The seed coat bursts, allowing the radicle to emerge and develop into a main root. The seed begins to take up water from underground. After the radicle and plumule have emerged, the shoot begins to ascend.The seed cell lengthens, divides, and becomes metabolically active in the last stage of seed germination to produce the seedling.

Thus, we can conclude that after analysing and understanding the above given theory the best two realistic conditions in order to germinate good quality of seeds can be that Soil should be enriched and Adequate water supply should be there.

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10 points each answer plus brainliest
A student explains the Nebular theory of formation of planets as follows.

"A cloud of gas and dust in space, called nebula, began to rotate and condensed into a flattened disk. Gravitational force pulled the gas and dust closer together. This resulted in the nuclear fusion of gases and dust to create the sun and planets at the outer flattened portion of the disk."

What is the flaw in the student's explanation? (1 point)
A. nuclear fission created the sun and planets
B. the nebula evaporated instead of condensing
C. the sun was formed at the center of the nebula
D. gravitational forces kept the gases well separated

Answers

Answer:

A

Explanation:

nuclear fission created the sun and planets the nebula evaporated instead of condensing the sun was formed at the center of the nebula gravitational forces kept the gases well separated.

Help on any of these would be very much appreciated

1. Circle the clade that includes both
amphibians and snakes.

2. What is something that all organisms in that
clade have in common?

3. What kingdom does this cladogram fit into?

4. Who are the lizards most closely related to
on this cladogram?

5. On the cladogram, star the organism that
has wings as a derived character.​

Answers

Based on the given cladogram:

the clade that includes both amphibians and snakes is; turtles, snakes, lizard and crocodileall the organisms lay eggsthe cladogram belongs to kingdom animalializards are most closely related to snakesbirds have wings as a derived character

What is a cladogram?

A cladogram is a treelike diagram used to shoe relationship between organisms.

A cladogram is shown above.

Based on the given cladogram;

Turtles, snakes, lizard and crocodile are the amphibians and reptiles in the same cladeThe amphibians and reptiles reproduce by laying eggsthe cladogram contains organisms belonging to the kingdom animalializards and snakes are both reptiles, thus, are most closely-relatedbirds belong to the class aves and possess wings as a derived character

Therefore, the cladogram is of organisms that belong to kingdom animalia.

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- Recently living organisms have been reclassified into three domains. A new living
object has been found. It is multicellular, and can make its own food by using the sun.
The cells have a cell wall, and they have a nucleus.
Which of the following could it be classified as?

A.animalia

B.plantae

C.fungi

D.protista

Answers

I would Try D if not try B

Brainliest involved:)) help pls

Answers

The answer is Amino acids

Which of the following is made of cells?

1. ocean water

2. glass bowl

3.oak tree

4. cement sidewalk

Answers

Explanation:

oak tree are plants and made up of plant cells.

Farley often treats patients with medical products that come from nature. He also performs acupuncture, the art of using needles to restore the flow of energy.



Which career would Farley most likely have?


A: Naturopathic Physician
B: Nurse Practitioner
C: Home Health Aide
D: Pediatrician
Please Help!!

Answers

Answer:

A

Explanation:

search up what a is, trust me, it will make sense for you to click A after this.

The career would Farley most likely have Naturopathic Physician. Therefore, option A is correct.

What is Naturopathic Physician ?

The same fundamental sciences that are taught to conventional medical doctors' students are also taught to naturopathic physician who attend naturopathic medical colleges. In order to get licensed, they must also pass a professional board exam, however they are not regarded as medical doctors.

Natural remedies are used in naturopathic medicine to support the body's ability to cure itself. Herbs, massage, acupuncture, exercise, and dietary advice are just a few of the techniques it embraces. Even though naturopathy was introduced to the United States from Germany in the 1800s, some of its practices date back hundreds of years.

Alternative medicine includes naturopathy, sometimes known as naturopathic medicine. Its physician, known as naturopaths, use a wide range of pseudoscientific techniques that are marketed as "natural," "non-invasive," or encouraging "self-healing."

Thus, option A is correct.

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b. Earth's thermohaline circulation moves heat around the planet, as can be seen by the warmer
climate in England due to the Gulf Stream. (2 points)
True or false ?

Answers

The answer is to that question is false

HELP ASAP!!!
What concept does Hubble's Law most concern?
A. energy lost over time across the universe
B. growing distance between galaxies
C. how stars recycle energy and matter
D. how the universe will eventually end

Answers

B they observed physical cosmology the galaxy are moving away from earth at speed proportion to their distance

Hubble's Law most concern with growing distance between galaxies. Thus option B is correct.

What is Hubble's Law ?

Hubble’s law refers to the observation in physical cosmology where the movement of galaxies from the Earth at a speed that are proportional to their distance.

The velocity of the galaxy which is called as the redshift.

This laws study physical cosmology and is also known as Hubble-Lemaitre law.

After measuring recession velocity one can determine the distance of the galaxy from us by using Hubble’s equation.

Some limitations are; due to intrinsic motion of galaxies, observed velocity gets influenced and Galaxy orbit due to  gravitational movements.

Hubble constant is another unit of measurement, which is used for description of the expansion of the universe. It  is 160 km/s per million-light-years.

Thus option B is correct.

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Choose the items that complete the sentence about the key features of f(x) = 8x. The y-intercept is Choose... , the asymptote is y = Choose... , and the range is y > Choose... .

Answers

Answer:

I suppose that the equation is:

f(x) = 8/x

(You wrote 8x, this is a linear function, so it has no asymptotes, then I assume that the actual function was 8/x)

The y-intercept is the value such that  f(x) = 0

Notice that there is no value of x such that 8/x = 0  (if the numerator is never zero, then the quotient can't be zero)

So we do not have an y-intercept.

The asymptote:

Here we have four:

if x tends to zero from the negative side, then:

8/x tends to negative infinity.

if x tends to zero from the positive side, then:

8/x tends to positive infinity.

These two asymptotes can be written as:

[tex]\lim_{n \to \_-0} \frac{8}{x} = -\infty\\ \lim_{n \to \_+0} \frac{8}{x} = +\infty[/tex]

We also have two when x tends to plus infinity (and 8/x goes to zero) and when x tends to negative infinity, such that the function tends to zero again, these two can be written as:

[tex]\lim_{n \to \infty} \frac{8}{x} = 0\\ \lim_{n \to -\infty} \frac{8}{x} = 0[/tex]

Finally, the range:

The only value that y never reaches (only on limits) is:

y = 0

Then the range is the set of all real numbers except the zero, or:

R :  { x ∈ R / {0} }

BIOLOGY HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NO LINKS OR FILES>>>

Answers

Answer:

I NEED POINTS

Explanation:

I will just answer this.

Answer:

1. A. radial symmtery

2 A. completely lined with mesoderm

3 C. varying shapes of forelimbs

4. B. enables the members of the phylum to survive and reproduce.

5 B. deuterostome development

Explanation:

I hope this helped ;)

A person sees a ball and kicks it, in part because of actions of the nervous system. Using the parts of the nervous system listed, describe the path of nerve impulses that cause the person to (1) see the ball and (2) kick the ball.

Answers

Answer:

In the case of seeing a ball and kicking it can be expressed in the actions of the nervous system as follows:

Part 1. Eyes see the ball and send signals with the help of sensory neurons that carry this message to the spinal cord.

PArt 2. The spinal cord processes the information and sends an "impulse" of kicking the ball that will transfer to motor neurons that transfer it to the brain and then muscles.

Sensory neurons --> spinal cord --> motor neurons --> brain---->leg muscles

2 differences between animal and plant cells

Answers

Answer:

Plants cells have cell walls and they also have chloroplasts (animal cells don’t have either of these)

Explanation:

The cell wall helps to maintain a rigid structure

The chloroplasts helps in the process of photosynthesis

Two plants with an inated seed shape produced 340ospring. Of those 340, six ospring had a constricted pod shape. What are the genotypes of the parents?

Answers

Answer:

The genotype of both parents will be heterozygous for the trait, Ii.

Explanation:

Let us assume that the shape of the seeds is controlled by a single diallelic gene.

Dominant allele I expresses the inflated phenotypeRecessive allele i expresses the constricted phenotypeThe dominant phenotype is inflated seeds, expresses by genotype II and Ii. The dominant allele hides the expression of the recessive allele, so if the genotype has at least one dominant allele, the phenotype will be inflated. The recessive phenotype is constricted seeds, expressed by the genotype ii. In this genotype there is no dominant allele, so the recessive allele can be expressed.

The individual with constricted seeds must have two recessive alleles i in its genotype ⇒ ii.

One of the i alleles was inherited from one of the parental plants, while the other parental plant provided the other i allele. So both parental plants must carry the recessive allele in their genotype.

We know that both parental plants have inflated seeds, which is the dominant phenotype.  

So, if both parental plants have inflated seeds and also carry the recessive allele, then the parentals´ genotype must be heterozygous, Ii.

Both plants exhibit the dominant inflated phenotype but carry a recessive allele which will be provided to some of the descendants. These last individuals will have constricted seeds.

Elements of xylem in a vascular bundle are lesser than those of phloem؟​

Answers

Answer:

No.

Explanation:

No, elements of xylem in a vascular bundle are not lesser than those of phloem because of the division of xylem progenitor cells that increases the xylem concentration in vascular bundle. The vascular cambium forms more xylem tissue than phloem due to more division of the xylem progenitor cells. so in the light of this discussion we can say that xylem is more in concentration than phloem in a vascular bundle.

The graph below shows the averaged sunspots from 1610 to 2007. The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order in gaps of approximately 10 years. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30. Based on the graph, which of these conclusions is correct? Some of the previously warm regions became colder from 1650 to 1700. Some of the previously cold regions became warmer from 1600 to 1700. Some of the previously warm regions became warmer from 1610 to 1700. Some of the previously cold regions became colder from 1900 to 1950.

Answers

Answer: Some of the previously warm regions became colder from 1650 to 1700

Explanation: I got it right on the test

According to the graph, the number of sunspots decreased from 1650 to 1700. That means the correct option is A.

What is a sunspot?

The areas of the sun where the magnetic field of the sun is 2500 times more than the Earth. In these areas, the magnetic field is more than anywhere else on the surface of the sun.

Near the area of a sunspot, there is a small amount of energy output from the sun. UV rays from the sun also increase at a high sunspot activity. This increase in UV radiation causes dramatic effects on the atmosphere of the Earth.

The more number sunspots are observed, the more energy will be delivered to the earth. This increase in the energy delivered to the earth would result in an increase in the overall global temperature.

According to the graph, the number of sunspots observed decreased from 40 to 5 and increased slightly from 5 to 10 from 1610 to 1700. So, the statement says that some of the warm regions would become colder from 1650 to 1700.

Therefore, the correct option is A.

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Name ways humans impact our ecosystem. Pls someone help me Pathogens can be destroyed by the process of phagocytosis.True or false in a group of 52 cards, how many different groups of 5 cards can you be dealt? Select the correct answer. Which statement best reflects the definition of culture used in this lesson? A. Culture is whats written in history books. B. Culture is something we inherit naturally at birth. C. Culture is learned from our families and traditions. D. Culture is what we learn by traveling to new places. ill give brainliest!!!! please answer all of these for my history Which organisms form the base of all ecosystems?A.) ConsumersB.) DecomposersC.) ScavengersD.) Producers Question 4Dnde (tomabas/tomaste) siempre el autobus?O tomastetomabas write the equation of the line that passes through the points (-9,-5) and (-2,3). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.(no links please) how might the extinction of one species impact another species Tell the story of Romeo and Juliet in either five sentences or in only six words--your choice. * 1.come 2.understand 3.sing 4.make 5.know 6.order 7.break 8.play 9.write 10.eat 11.visit 12.drink 13.take 14.put 15.work write the 15 verbs in the past participleplease help me I have a lot of homework What is the slope of the line?pleaseeee help Conclusions and recommendations are the most widely read sections of any report. Conclusions summarize and explain your findings and are the heart of your report. The ability to draw sound conclusions and make clear recommendations from your research is crucial to business success. Companies value employees who can analyze data and use it to help answer questions and solve problems. 1. When drawing conclusions, make sure you (use consistent evaluation criteria / are open to sensationalization or exaggeration / avoid relating them to the initial report problem).Consider the scenario, and then answer the question.You are making recommendations after researching and writing a report on sports club discounts and employee health.2. What should you remember about your reader before preparing your recommendations? A. Readers prefer specific, practical recommendations.B. Readers may want to know how to implement the suggestions.C. Readers should have no influence on how your recommendations are developed.D. Readers prefer that your recommendations be shared indirectly.E. Readers want to know how your data relate to the problem being studied.Determine whether each of the following statements is the finding, the conclusion, or the recommendation.Employee attrition rate after four years with our company is 35 percent, which is 17 percent higher than that of our aspirational peers. Typical employee promotions occur after five years in our company and after four years in competitive firms.3. This is the (conclusion / finding / recommendation) .We are losing trained and promising employees more often than our competition due to slow promotion practices within our company.4. This is the (conclusion / finding / recommendation) .Implement a leadership development program for promising new employees, and decrease the time before employees are eligible for promotion in order to retain the most promising employees.5. This is the (conclusion / finding / recommendation) . In the science lab, a student wants to find the density of an unknown liquid. What two toolsshould the student use?A. Triple beam balance and rulerB. graduated cylinder and beakerC. thermometer and triple beam balanceD. triple beam balance and graduated cylinder Which survey question is biased?A. "Should the President of the United States serve a six-year term?"B. "Which meal-breakfast, lunch, or dinner-is your favorite meal of the day?"C. During which month do you prefer to go on vacation?"D. Do you prefer white bread or healthy, whole-wheat bread? Complete main() to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. Use the substring() method to parse the string and extract the date. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990. Ex: If the input is: Two students go to play basketball. They notice the ball is flat (it won't bounce). They decide to pump it up with air. After it is pumped with air, will the ball have more, less, or the same amount of mass as before air was added?A. The ball has less mass after being pumped with air.B.Cannot determine unless we measure the mass.C.The ball has more mass after being pumped with air.D. The ball has the same amount of mass after being pumped with air.Justify your answer Need help ASAP plz !!!!! The radius of a semicircle is 4 millimeters. What is the semicircle's perimeter?