The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.
What is the indirect evidence that helped us determine the layers?Use of seismic waves is the indirect evidence that helped us determine the layers. When earthquakes occur they produce seismic waves.
The flow of matter occurs by convection. The dense crust subducts back into the mantle exert forces on crustal plates that then move, producing tectonic activity.
So we can conclude that The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.
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Where in the cell cycle is dna polymerase most active.
Answer:
DNA polymerase takes place mostly in the S phase of the interphase since its responsible for DNA replication.
The S phase of the interphase is the most active. The S phase is where it is responsible for DNA replication. Since it is responsible for cell replication, it the activity there is at it's maximum.
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What type of feedback is used to
regulate body temperature?
A. positive feedback
B. negative feedback
C. neutral feedback
D. product feedback
Answer:
B
Explanation:
negative feedback is used to regulate feedback
If the population of Shanghai increases to 30 billion people, how much land would its people need if the population density is 3,826 people/km2 ?
784109 People per sq. mi land would its people need if the population density is 3,826 people/km2.
What is population density?The density of individuals within a species in a given geographic location is referred to as population density. Data on population density can be used to calculate demographics and examine interactions with ecosystems, human health, and infrastructure.
The population density equation below can be used to calculate the population density of a piece of land:
Population Density = Population/ Area
The residential density is important in determining the people's thinking and culture. Engineers find it vital to forecast population growth in order to develop infrastructure that can support a large population. It is practically impossible to develop a perfect 3D model of any structure that allows the largest number of people to live without this understanding.
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what best discribes a possible negative impact of irrigation of farmland
Answer:
Food can be produced in dry areas.
Explanation:
This can be rice.
A plant has a desirable trait: it is disease resistant. what can be done to quickly produce large numbers of identical plants with this same trait?
Answer:Plants are cloned to produce identical plants quickly and economically. Producing new plants by cloning is quicker than allowing plants to reproduce then collecting and sowing seeds. It's therefore an effective way of producing new individuals from rare and endangered plants, helping to preserve the species.
Explanation:
they might add a disease-resistance gene from one plant
what type of protein is often used to cary other molecules
Answer:
Globular proteins
Explanation:
They play many biological roles, including acting as enzymes, hormones, immunoglobulins, and transport molecules
Answer: The type of protein that is often used to carry other molecules is Globular
Explanation:
Two rabbits mate, each with one dominant gene (f) for black and one recessive gene (f) for white.
how many offspring out of every four will be black? (complete a punnett square to help yourself)
three
two
one
four
thank you to whoever helps <3
Three out of four of their offspring will be white when Two rabbits mate, each with one dominant gene (f) for black and one recessive gene (f) for white. Thus, the correct option is B.
What is law of dominance?A trait is represented by two contrasting factors of a gene in a heterozygous individual, while the homozygous individual has two copies of the identical factors, according to the law of dominance. As a result, the heterozygous rabbit's genotype will be Bb, whereas the homozygous recessive rabbit's genotype will be bb.
FF X ff
║
Ff (F1 generation)
║
Ff X ff (self pollination- F2 generation)
║
Ff, Ff, Ff, ff
3: 1 (black: white)
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The sciatic nerve extends from the lower spinal cord to the foot. If a person's sciatic nerve is 0.914 m in length and the speed of an action potential is 107 m/s, how long will it take for a nerve impulse to travel the full distance of this nerve?
Answer:
0.0085420560747664 Seconds
Explanation:
0.914 ÷ 107 = 0.0085420560747664
The time that the nerve will take for a nerve impulse to travel the full distance of this nerve is 0.00854 seconds.
What is a sciatic nerve?Sciatica is caused by a pinched sciatic nerve. The most common cause is a herniated disc in the spine or an overgrowth of bone, known as bone spurs, on the spinal bones.
A tumor can occasionally impose pressure on a nerve. A condition, such as diabetes, can also harm the nerve. The speed of something is how fast the object is moving. It is calculated by the distance divivded by time.
Given, the length of the sciatic nerve is 0.914 m
The speed of an action potential is 107 m/s.
The length is divided by the speed
0.914 / 107 = 0.00854 sec.
Therefore, the full distance of this nerve is 0.00854 seconds.
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Gametes produced by an organism contain a combination of genes from that organism
Gametes are the structure required for fertilization and are formed from germ cells through meiosis. Gametes produced by an organism contain a combination of genes from that organism which is different in every individual due to independent assortment.
What is independent assortment?When the alleles of two different genes get sorted into gametes independently of one another is referred to as independent assortment.
In other words, different alleles and genes are independently transferred to offspring during the meiosis in reproduction through the fusion of gametes.
Thus, it can be concluded that gametes produced by an organism contain a combination of genes from that organism which is different in every individual due to independent assortment.
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What relationships exists between frogs and fishes in a pod
Answer:
The relationship between frogs and fishes in a pod is predation.
The total energy in a system is 675 J. The kinetic energy changes from 296 J to 432 J. Which statement best describes the potential energy of this system?
It changes from 296 J to 432 J.
It changes from 379 J to 243 J.
It changes from 432 J to 296 J.
It changes from 243 J to 379
Answer:
B, It changes from 379 J to 243 J.
Explanation:
"It changes from 379 J to 243 J" best describes the potential energy of this system.
What is potential energy?Total energy in a system can be divided into two main components: kinetic energy and potential energy. The given information states that the kinetic energy of the system changes from 296 J to 432 J. However, no direct information is provided about the change in potential energy.
Since the total energy in the system remains constant at 675 J, any change in kinetic energy must be compensated by an equal and opposite change in potential energy to maintain the overall energy balance.
If the kinetic energy increases from 296 J to 432 J, the potential energy must decrease to maintain a total energy of 675 J. Therefore, the potential energy changes from a higher value of 379 J (initial potential energy) to a lower value of 243 J (final potential energy). This change in potential energy is consistent with the increase in kinetic energy from 296 J to 432 J, ensuring the conservation of total energy in the system.
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Match the following terms and definitions.
1. having one mate for a whole life span
2.
a symbiotic relationship between two organisms in which
both species receive some type of benefit
3.
a relationship between two or more organisms of different
species in which one benefits and the other is harmed
a commensalistic relationship in which one organism is
transported by another
5. when females mate with multiple males
6. when males mate with multiple females
phoresy
monogamy
mutualism
polyandry
polygyny
parasitism
phoresy - a commensalistic relationship in which one organism is transported by another.
monogamy - having one mate for a whole life span
mutualism - a symbiotic relationship between two organisms in which
both species receive some type of benefit
polyandry - when females mate with multiple males
polygyny - when males mate with multiple females
parasitism - a relationship between two or more organisms of different
species in which one benefits and the other is harmed
SymbiosisSymbiosis is the name given to any close and long-term interaction between two different species.
This interaction can be beneficial to one part only and harmful to the other (parasitism), it can be beneficial to all parts (mutualism), or it can benefit one part without influencing neither positively nor negatively the other (commensalism).
A mating system refers to how a group is organized in terms of sexual behavior. When it comes to animals, the phrase refers to which males and females mate when certain conditions are met. Monogamy, polygamy (including polygyny, polyandry, and polygynandry), and promiscuity are all recognized systems that lead to various mate choice outcomes and so influence how sexual selection operates in the species that practice them.
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Which members of an ecosystem are part of the energy flow?.
Answer:
When it comes to the flow of energy in ecosystems there are two types of organisms: producers and consumers. Plants are a common example of producers in all populations. They are able to convert carbon dioxide into oxygen and glucose, a common sugar consumed by most organisms.
Explanation:
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11. Earth's magnetic field...
does not affect solar winds
is not affected by solar winds
protects Earth from radiations
creates gravitational forces
Answer: protects Earth from radiation
Explanation:
Generated by the motion of molten iron in Earth's core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun. It also provides the basis for navigation with a compass.
Which statement best describes a human influence on the biogeochemical cycles?
increased eutrophication caused by high levels of nitrogen and phosphorous
increased nitrates available due to inaccurate methods of denitrification
increased global warming due to alternative energy sources
increased amount of water that is available to freshwater ecosystem
The statement that best describes human influence on the biogeochemical cycle is as follows: increased eutrophication caused by high levels of nitrogen and phosphorous, which is option A.
What is eutrophication?Eutrophication is the ecosystem's response to the addition of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.
Eutrophication is one major effect of the anthropogenic activities that release inorganic nutrients such as phosphate, nitrate etc into aquatic ecosystems.
However, eutrophication has its negative impacts on biogeochemical cycle as it alters the cycling of these nutrients.
Therefore, the statement that best describes human influence on the biogeochemical cycle is as follows: increased eutrophication caused by high levels of nitrogen and phosphorous.
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Answer:
A
Explanation:
Just took the test, hope this help :)
Which statement correctly compares the "Analysis" and "Conclusion" sections of a lab report?
O Only the "Conclusion" section describes errors that occurred during the experiment, and only the "Analysis" section
suggests further research.
O Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
research.
Only the "Analysis" section discusses whether the original hypothesis was supported, and both sections include
graphs of data.
Only the "Conclusion" section discusses whether the original hypothesis was supported, and both sections suggest
further research.
Answer:
Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
Answer:
the answer is O Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further
research.
Explanation:
Who are the consumers of the organism represented by the blue arrow?
Food web showing several different food chains. The blue arrow is pointing to an image of algae which has arrows pointing to images of a large mouth bass and a wood duck which both have arrows pointing to an image of a red tailed hawk.
The large-mouth bass and the wood duck
The large-mouth bass and the red-tailed hawk
The wood duck and the red-tailed hawk
The wood duck and the meadow vole
Question 4(Multiple Choice Worth 3 points)
(04.01 MC)
What trophic level do herbivores occupy in a food chain?
Primary consumer
Producer
Secondary consumer
Decomposer
[tex]\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}[/tex]
[tex] \sf \red{What \: trophic \: level \: do \: herbivores \: occupy \: in \: a \: food \: chain?}[/tex]
[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]
[tex]\green\star[/tex]Primary consumer
[tex]\pink\star[/tex]Explanation:
Let us take an example of chain. Plants are producer, they produce grass, after then it comes primary consumer like cow,goat etc. Then it comes Secondary comsumer like us, we human take milk or flesh from it. And at last it comes to decomposer which are micro organism that absorb the wastes in the soil and make the soil fertile.
Thus, herbivores comes under Primary consumer.
[tex] \boxed{\huge \frak \red{brainlysamurai}}[/tex]
What substance does heredity rely on?
O A. DNA
O B.
protein
OC. phylum
O D. chordate
HELP!!! what should you use to rinse items after cleaning them and before sanitizing them
does anyone know how to do this ? You are a bio-researcher on the planet Tawniwani, and you have been given the task of identifying and classifying the native fauna. Use this dichotomous key to identifyTawniwanian creature t.
A dichotomous key is a classification tool used to identify organisms based on morphological or behavioral characteristics. Individual C is a Roundus tricurlus.
What is a dichotomous key?
A dichotomous key is a significantly useful tool to classify organisms.
If you have an organism -or part of it- and you need to taxonomically identify it, you use a dichotomous key.
The key provides an easy and fast way for identification by describing different morphological or behavioral traits, leading you to the correct taxonomic classification.
The term dichotomous refers to how information is provided.
You will always have two options per feature (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.
Once you choose one of the options according to your organism, the key leads you to the following description, and you will have to choose one of the options again.
You will repeat this until you reach the name of your organism.
The key describes only specific traits that are useful for differentiation.
In the exposed example, for instance, we need to know the name of the individual C.
Step 1The first description is about the head size. The key asks you if the individual has a small or a large head. It has a small head, so the key tells you to move to description 2.
1a. Has a small head--------------------------- go to 2
1b. Has a large head--------------------------- go to 3
Step 2The second description is about the body shape. The key asks you if your organism has a narrow or a rounded body. And this individual has a rounded body, so the key tells you to move to description 7.
2a. Has a narrow body ------------------------ go to 6
2b. Has a round body -------------------------- go to 7
Step 3The seventh description is about antennae. Does your individual have curly or straight antennae? It has curly antennae. You have reached your organism's name. It is a Roundus tricurlus.
7a. Has a curly anteanne ------------------------ Roundus tricurlus
7b. Has a straight antennae--------------------- go to 8
Individual C is a Roundus tricurlus.
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Sugar
02
CO₂
H₂O
What is the name of this energy pathway?
Answer:
Its called celular repiration
Explanation:
A club fungus has an erect, above-ground fruiting body and long, branching, underground hyphae.
A club fungus has a thick stem and an umbrella top-shaped head having many irregular-shaped particles spread all over the head.
How do the structures of the fruiting body and hyphae relate to their functions?
Answer:The fruiting body is tall to maximize photosynthesis, while the hyphae are branched to support the release of waste products.
Explanation:I took the test and had the question.
1.1.5 The phase of photosynthesis where chlorophyll molecules Convert radiant energy in two Chemical energy A. Light Phase B. Dark Phase C. Light intensity D. Temperature
What scientific term describes differences in characteristics between individuals of
a species?
[1 mark]
Answer:
Variation is the term you seek.
A plant can produce either purple flowers or white flowers. The purple flower color is dominant over the white flower color. What is the ratio of the offspring with purple flowers to the total number of offspring if two plants that are heterozygous for purple flowers are crossed?
One or two purple alleles in flowering pea plants will result in purple blooms. so there will be 50 percent ratio. This is because one purple gene causes enough pigment to be synthesized to produce all purple flowers.
What is dominant allele?A dominant allele is a variant of a gene that causes a specific trait even when other alleles are present. A functional protein is usually encoded by a dominant allele. Because one copy of the allele produces enough enzyme to furnish a cell with plenty of a given product, it is dominant.
As a result, the purple allele has a dominant role, while the white allele has a recessive role.
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In which phase of mitosis does the nuclear envelope reform?.
5. What gets dissolved in the bloodstream as glucose?
O fats
O fiber
O proteins
O carbohydrates
Answer:
carbohydrates
Explanation:
A healthy person's urin never contains something sweeter . This is because your blood absorbs all sugars , carbohydrates and glucose in itselfCarbohydrates are also dissolved in blood stream like glucose.Sooption D is correct
Answer:
carbohydrates
Explanation:
At the begining you probably think that was fats but no, I took the quiz
what will happen to the cell as it reaches equilibrium?
Answer:
Even when equilibrium is reached, particles of a solution will continue to move across the membrane in both directions. However, because almost equal numbers of particles move in each direction, there is no further change in concentration.
Explanation:
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A X O L O T L
A 45 year old female
with a history of dieting
continues to gain weight,
complains
of feeling cold
and is often tired
Answer:
Iron deficiency (anemia)
Hormonal and lifestyle differences like pregnancy, menstruation, and menopause mean that women need more iron than men in their diet, but few women actually get as much as they need. The result—anemia's—most common symptoms include fatigue and weakness.
Explanation:
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what happens during homeostasis?
I think Homeostasis pretty much means, your cells are in balance and are functioning smoothly. Your body is running smoothly.