Answer:
Chloroplasts
Explanation:
Chlorophyll is produced in chloroplasts in the photosynthetic tissues of the leaf.
Unlike natural selection, genetic drift is based solely on which of the following?
O Migration
O Chance
O Mutations
O Genotype of the individual
Answer:
Chance
Explanation:
Genetic drift is the sudden disappearance of different genetic traits within a population. Genetic drift occurs most commonly due to accidents or chance scenarios.
Which description is common to most vascular and nonvascular organisms in the kingdom plantae
A. Use photosynthesis to get nutrients
B. Produce cones
C. Produce pollen
D. Have stamens and pistils
In humans, six fingers (f) is the dominant trait; five fingers (f) is the recessive trait. if the father is heterozygous for six fingers and the mother has five fingers, what is the probability of their offspring having five fingers
The probability of the offspring of a heterozygous father and homzygous mother having five fingers is 50%.
How to calculate genotype of a cross?According to this question, a gene coding for the number of fingers in humans is involved. The allele for six fingers (F) is the dominant trait while the allele for five fingers (f) is the recessive trait.
If a cross between a heterozygous father that posseses a genotype of Ff and a homzygous mother that posseses a genotype of ff, the following offsprings will be produced:
FfFfffffThis shows that the probability of the offspring of a heterozygous father and homzygous mother having five fingers is ½ (50%).
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A high-pressure system stays over a city for several days. What type of severe
weather is the city most likely to experience?
O A. Drought
OB. Flooding
OC. Heat wave
OD. Blizzard
SUBMIT
The weather condition that accompanies a high pressure system over a city is a heat wave.(Option C)
What is the weather condition?The weather condition of a place determines a lot of things such as the condition of life in an area. A condition of high pressure is associated with a large temperature increase.
Thus, the weather condition that accompanies a high pressure system over a city is a heat wave.
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Which energy source contributes least to global warming?
A. Coal
B. Oil
C. Geothermal
D. Natural gas
Answer:
C. Geothermal
I Hope im correct ^^
Answer:
C. Geothermal
Explanation:
It's a renewable energy unlike the rest of the options.
Evidencia de los colonos de Washington
2. Which of the following statements is true about agricultural productivity in the United States since 1948?
A. Agricultural productivity has increased since 1948.
B. Agricultural productivity has not changed since 1948.
C. Agricultural productivity has not been measured since 1948.
D. Agricultural productivity has decreased since 1948.
Answer:
C. Agricultural productivity has not been measured since 1948.
Answer:
A
Explanation:
it has increased 175 percent since then
ANSWER FAST PLS! (For a project) State and describe three different ways that agricultural engineering (machines, tools, irrigation systems, pesticides, fertilizers, genetic modification) could be applied to help reduce the loss of wheat crops in drought conditions.
Use complete sentences, proper capitalization & punctuation
Have 3 sentences telling 3 different ways to help with the wheat crop during a drought
Irrigation is an artificial technology that helps to obtain water and thus recover the loss in extensive (wheat) crops.
What is irrigation?Irrigation is a technology based on the artificial supply of water to recover crops from drought conditions.
Genetic modification may also help with drought conditions by inserting into the genome of the target species gene sequences associated with hydric stress (e.g., a protein channel to close stomata at night).
In conclusion, irrigation is an artificial technology that helps to obtain water and thus recover the loss in extensive (wheat) crops.
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I need your guys's help!
I had a science exam a day or two ago, and this was one of the questions:
Identify and name the cell organelle:
M- It allows transportation of materials in and out of plant cell.
Isn't the correct answer supposed to be cell membrane? Even though they mentioned in a plant cell.. Because the cell wall is completely permeable.. so it lets anything pass through.. but the cell membrane decides and allows materials to enter and exit the cell..
The teacher said the correct answer is cell wall though.. I would like to know your thoughts!
The correct answer is the cell membrane because it is the second last semi-permeable layer of the cell.
What is the function of cell membrane?The cell membrane is a semi-permeable barrier that is responsible for allowing molecules across the cell when it is needed by the cell.
So we can conclude that The correct answer is the cell membrane because it is the second last semi-permeable layer of the cell.
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The cell membrane allows the transportation of materials in and out of plant cells, although the cell wall is also key for these processes.
What is the cell wall?The cell wall is a rigid structure located outside the plant cell that protect it against friction and osmotic stress.
The cell wall is also required to transport substances in and out of the plant cell by pores present in this structure.
Moreover, the cell membrane is a physical barrier that allows the interchange of nutrients and waste materials between the cell and its surrounding environment.
In conclusion, the cell membrane allows the transportation of materials in and out of plant cells, although the cell wall is also key for these processes.
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Use the following table to answer the question:
Codons Found in Messenger RNA
Second Base
First Base U C A G Third Base
U Phe
Phe
Leu
Leu Ser
Ser
Ser
Ser Tyr
Tyr
Stop
Stop Cys
Cys
Stop
Trp U
C
A
G
C Leu
Leu
Leu
Leu Pro
Pro
Pro
Pro His
His
Gln
Gln Arg
Arg
Arg
Arg U
C
A
G
A Ile
Ile
Ile
Met Thr
Thr
Thr
Thr Asn
Asn
Lys
Lys Ser
Ser
Arg
Arg U
C
A
G
G Val
Val
Val
Val Ala
Ala
Ala
Ala Asp
Asp
Glu
Glu Gly
Gly
Gly
Gly U
C
A
G
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-His-Thr?
GUA-CAU-ACC
GTA-CAT-ACC
CAT-GTA-TGG
CAU-GUA-UGG
Translating the code by the table informed, the message found in rna will be CAT-GTA-TGG.
What is the genetic code of DNA is RNA?The genetic code is made up of four bases: adenine (A), cytosine (C), guanine (G) and uracil (U). The combination of these bases determines the amino acid necessary for the formation of a protein.
Translation is a process in which the message contained in the mRNA molecule will be read by the ribosome, decoding the nucleic acid language into the protein language. In this case, we have:
GTA-CAT-ACC
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Answer:
the answer is CAT-GAT-TGG
How is meiosis different from mitosis.
Answer:
the answer is b
Explanation:
at the end of meiosis, each gamite has two full sets of chromosones
what systems function together to maintain life
Answer: The nervous and endocrine systems direct the action and function of the body.
Explanation: The digestive, respiratory, and circulatory systems work together to remove waste from the body while also absorbing necessary nutrients and compounds. Your circulatory system carries vital nutrients to the skeletal and muscular systems
3. Identify the independent variable: A scientist wanted to see if temperature affected the male/female ratio in alligator eggs. She took 5 clutches of eggs and placed them in different incubators. Each incubator had a temperature 5 degrees different from the other. Each had a humidity of 87% and received 16 hours of simulated sunlight.
A. 16 hours of sunlight
B. Temperatures
C. 87% humidity
Answer:
answer is a
Explanation:
hope this helps
some chains of carbon atoms bend when the carbon atoms:
A. form single covalent bonds.
B. form double covalent bonds.
C. form bonds with oxygen atoms.
D. form bonds with hydrogen atoms.
Answer:
Fats with at least one double bond between carbon atoms are unsaturated fats. When some of these bonds are in the cis configuration, the resulting bend in the carbon backbone of the chain means that triglyceride molecules cannot pack tightly, so they remain liquid (oil) at room temperature.
A _____ cell is one that has two copies of each chromosome.
a haploid
b monoploid
c somatic
d diploid
A diploid cell is one that has two copies of each chromosome and is denoted as option D.
What is a Diploid cell?This type of cell has two copies of each chromosome which is usually from the mother and father.
Haploid cells on the other hand have only one set of chromosome thereby making it the most appropriate choice.
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A student carried out an experiment to model the digestion of starch by the enzyme amylase in the small intestine.
Visking tubing is a selectively permeable membrane that has small holes in it to allow small molecules to pass through. At regular intervals, the student tested the liquid inside and outside the Visking tube.
How could the student test for the presence of starch inside the Visking tubing?
Answer:
Put one drop on the dimple tile, and the rest in a test tube. Then put the teat pipette back in the water outside the Visking tubing. Test the drops of liquid in the dimple tile by adding one drop of iodine solution from the dropper bottle. If they turn blue-black, the liquid contains starch.
Explanation: i hope this helped :)
Can the birth rate of death rate of a population of organisms be greater then 1?
Answer:
yes, this is called natural increase
Explain why the northern hemisphere receives more solar energy from the sun between june and august than the southern hemisphere receives between june and august.
Answer:
Whichever hemisphere (the Northern or Southern Hemisphere) is tilted toward the sun receives more direct rays of sunlight (or rays that are closer to perpendicular or a 90° angle). The hemisphere tilted toward the sun also has more hours of daylight than the hemisphere that is tilted away from the sun
Explanation:
Can you help me please
Answer:
How can we help you in math or another subject?
What are the benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings?
All options above are potential benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings.
What are native species?Native species are species that evolved in a particular environment and therefore they are well adapted to it.
Native plants are well know to be more adapted to survival and do not need extra watering to survive.
In conclusion, all options above are potential benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings.
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What adverse effects does covering the land with concrete and asphalt create?
Vegetation and trees cannot grow.
The flow of water in rivers is changed.
Non-native species are introduced to a foreign environment.
Natural resources are depleted.
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The layer of the uterine wall that is shed during menstruation is the:.
Answer:
The layer of the uterine wall that is shed during menstruation is the endometrium
Hemlock trees support life of other organisms. Climate change has increased the rate of infection of Hemlocks with woolly adelgid. These kill the trees which decrease the habitat of animals and other insects. This is an example of how climate change impacts the
Answer:
Don't know your answer choices, though if one of them is "Community Level" that is the correct one.
Explanation:
Found on other websites, and just completed a quiz with the same answer.
A population of mice lives on an island in the Pacific Ocean. From year to year, the size of the adult population remains at about 300 individuals, and the variety and frequency of the traits of the mice change very little.
Which of these events would be MOST likely to cause an evolutionary change to the mouse population on the island?
O A. an island predator killing and eating 50 mice.
O B. a storm that drowned about 50 mice all across the island.
O C. a mutation in the skin cells of an adult mouse.
O D. a drought that reduced and altered the food supply of the mice.
O E. a breeding pair of mice producing an unusually large number of offspring.
Answer:
cbd
Explanation:
C, a mutation in the skin cells of an adult mouse, is the occurrence that would be most likely to lead to an evolutionary shift in the mouse population on the island.
What is the genetic variety ?Genetic variety, which is the foundation of evolution, is mostly produced via mutations. Mutations can result from external sources like radiation or chemicals or spontaneously arise as DNA is replicated during cell division.
A change in a mouse's genes resulting from a mutation in its mature skin cells might be passed on to the mouse's progeny. The other things on the list wouldn't affect the population of mice in an evolutionary way. Event A, a predator on an island killing and devouring 50 mice, would cause the population to decline.but would not result in an evolutionary shift due to size.
Even though Event B, a storm that drowned roughly 50 mice over the whole island, reduced the population number, it had no evolutionary impact. Even though Event D, a drought that reduced and altered the mice's food supply, did not affect evolution, it may have changed the mice's behaviour, such as making them more competitive for food.
The population would grow as a result of Event E, a mating couple of mice having an abnormally high number of offspring, but no evolutionary change would result.
In conclusion, C, a mutation in an adult mouse's skin cells, is the scenario that would most likely result in an evolution of the mouse population on the island.mouse. The main cause of the genetic variety that underlies evolution, mutations can alter the genes that are handed down to the next generation. The other things on the list wouldn't affect evolution.
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What elements are always present in protein?
A. radium, boron, fluorine, and chlorine
B. mercury, iron, lead, and aluminum
C. carbon, hydrogen, oxygen, and nitrogen
D. neon, argon, krypton, and copper
ہے
What elements are always present in protein?
A. radium, boron, fluorine, and chlorine
B. mercury, iron, lead, and aluminum
C. carbon, hydrogen, oxygen, and nitrogen ( ✔ )
D. neon, argon, krypton, and copper
Explanation :Proteins are one of the primary constituents of living matter. They consist of long chains of amino acids, which are bonded together by peptide linkages and thus called polypeptides. There are about 20 amino acids, and the atoms most prevalent in these are carbon, hydrogen, oxygen, nitrogen, and sulphur.
The elements that are always present in protein is carbon, hydrogen, oxygen, and nitrogen. The correct option is C.
Proteins are large molecules made of amino acids that are crucial for a number of biological processes in living things. Proteins usually contain the following elements: carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).
These components serve as the fundamental building blocks of amino acids, which are joined by peptide bonds to form protein chains.
The fundamental components that are consistently present in all proteins are carbon, hydrogen, oxygen, and nitrogen, while other elements, such as sulphur (S) and phosphorus (P), can also be found in some proteins.
Thus, the correct option is C.
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Determine which of the following statements is true about energy in ecosystems.
A. Primary producers lose 20% of the energy they absorb as urine and feces.
B. Consumers pass on 20% of the energy they get from a lower trophic level.
C. Primary consumers lose 60% of the energy they absorb from producers as urine and feces.
D. 10% of the energy Primary consumers absorb is lost as heat.
The community along with the biotic and abiotic factors makes the ecosystem. In the ecosystem, 10% of the energy primary consumers absorb is lost as heat. Thus, option D is correct.
What is an ecological pyramid?An ecological pyramid is the graphical presentation of the organism and the flow of energy at each trophic level. The trophic level constitutes the producers and the consumer.
The flow of energy follows the 10% energy rule where each trophic level loses and gains only a certain amount of heat. The heat is lost as excretory products in the environment.
The maximum amount of energy is gained by producers which passes to the primary consumers (10%), secondary consumers (1%), and the upper trophic level.
Therefore, option D. primary consumers absorb only 10% of energy.
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A(n) ________ is a hard outside covering that is used for protection and prevents the inner body area from drying out.
exoskeleton
endoskeleton
cuticle
cilia
The cuticle is the most exterior layer of arthropods' tegument, and its principal function is to protect the body and avoid dehydration. Option C is correct. Cuticle.
What is the cuticle?
The cuticle is the most exterior layer of arthropods' tegument. It is secreted by the epidermis and develops right over it.
It is composed of two main layers,
epicuticle ⇒ outermost layerprocuticle ⇒ inner layer
The cuticle is mainly made of chitin, and its function is to protect the organism's body and avoid dehydration.
Because it avoids dehydration it is believed that arthropods had such an evolutive and adaptative successful in their transition from water to the land.
The cuticle also provides support to the body and a muscle attachment surface.
The correct option is C. Cuticle
A _Cuticle_ is a hard outside covering that is used for protection and prevents the inner body area from drying out.
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Producers, such as those that make the foods that are shown below, make glucose during the process of photosynthesis.
Answer:
glycolysis. Producers, such as those that make the foods that are shown below, make ATP during the process of photosynthesis.
5. The burning of fossil fuels has increased the carbon dioxide content of the
atmosphere. What is a possible effect that the increased amount of carbon
dioxide is likely to have on our planet? (SC.6.E.7.9; SC.E.6.7.6)
a. A warmer climate
b. A cooler climate
c. Lower relative humidity
d. More ozone in the atmosphere
Answer:
A
Explanation:
As the ozone breaks down from greenhouse gases, a blanket is formed, heating up the climate (thus causing what we see as global warming).
Answer:
A
Explanation:
Carbon traps heat inside the earth
HELP ASAP PLS
which of these cause a puppy to grow
a. cells moving from place to place
b. cells enlarging and dividing
c. cells getting rid of wastes
d. cells changing energy to food
Answer:
cells enlarging and dividing
Explanation:
when cells get bigger and divide there is more of them causing growth this is a lengthy process however is how people and animals grow