A healthy yellow leaf has
A, No chloroplast
B, xanthophylls
C, no living cell
D, No photosynthesis​

Answer

No. 4

Explanation:

They cause less pollution. Renewable sources of energy, such as solar, wind, and hydroelectric, cause significantly less air and water pollution than non-renewable sources, such as coal and oil.

Pollution is the presence of toxic substances in the environment that can have a negative effect on humans, animals, and plants. It can either be the result of natural processes or due to man-made activities. Pollution can occur in the air, water, soil, and even in the food we consume. Common forms of pollution include air pollution, water pollution, plastic pollution, and noise pollution. Air pollution is the release of pollutants into the air which can cause harm to humans and the environment. Water pollution is the contamination of surface or ground water and can be caused by agricultural runoff, industrial pollution, and sewage. Plastic pollution is the accumulation of plastic particles in the environment that can damage ecosystems.

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The neural tube, which is responsible for the development of the brain and spine, closes within the first 28 days of pregnancy.

Folate deficiency can prevent the neural tube from closing, which can result in a neural tube defect.

Neural tube defects may be more likely in people with low vitamin B12 levels, according to the National Institutes of Health (NIH).

The amount of folate in your blood is important to help prevent a neural tube defect, also known as a serious birth defect of the brain or spine, in a developing baby if you are pregnant or could become pregnant.

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Answer:

There are several conditions that are needed for an accurate radiometric date to be obtained from a mineral sample. These include:

The mineral must be a suitable type for radiometric dating. Some minerals are more suitable for radiometric dating than others due to their chemical composition and the type of radioactive isotope they contain.

The mineral must be in a closed system. This means that the mineral must not have exchanged any atoms with its surroundings since it formed. If atoms have entered or exited the mineral, it will not give an accurate radiometric date.

The mineral must be pure. If the mineral sample contains contaminants or impurities, it will not give an accurate radiometric date.

The mineral must be free of any damage or alteration. If the mineral has been damaged or altered in any way, it will not give an accurate radiometric date.

The mineral must be properly prepared and analyzed. The sample must be carefully prepared and analyzed using specialized equipment and techniques to ensure accuracy.

Overall, to obtain an accurate radiometric date from a mineral sample, it is important to ensure that the mineral is a suitable type, is in a closed system, is pure, is free of any damage or alteration, and is properly prepared and analyzed.

Explanation:

Answer:

In the past two decades, this species has experienced severe population decline due to the emergence of devil facial tumor disease (DFTD), a transmissible cancer. During these 20 years, scientists have puzzled over the immunological and evolutionary responses by the Tasmanian devil to this transmissible cancer

Answer:

B) Production of complex molecules from simpler ones.

Explanation:

Synthesis is the process of combining simpler molecules to form more complex ones. This can occur through various chemical reactions within an organism. The other choices do not accurately describe the process of synthesis.

A) Distribution of essential compounds throughout an organism - This refers to the transport of essential molecules within an organism, rather than the production of complex molecules from simpler ones.

C) Elimination of waste products from the organism - This refers to the removal of waste products, rather than the production of complex molecules.

D) Regulation of physiological activities - This refers to the control of physiological processes, rather than the production of complex molecules.

Answer:generalize

Explanation:

After classical conditioning has occurred, if the conditioned stimulus is repeatedly presented alone, without the unconditioned stimulus, the conditioned response will WEAKEN.

In conclusion, after classical conditioning has occurred, if the conditioned stimulus is repeatedly presented alone, without the unconditioned stimulus, the conditioned response will WEAKEN.

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Answer:

freshwater biomes

In freshwater biomes, stratification, a major abiotic factor, is related to the energy aspects of light. Marine systems are influenced by the physical water movements, such as currents and tides, along with the thermal properties of water.

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Answer:

A lunar eclipse never occurs during a full moon.

Explanation:

A lunar eclipse occurs during all full moons. A lunar eclipse can only occur during a full moon.

Answer:

placed into different concentrations of sea water.

The rate of water excreted by the contractile

Answer: Because, the higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem, and stability. It makes an ecosystem more sustainable because of the food web being stronger and the organisms providing a wide variety of functions.

I hope I answered you correctly and that it helps, I'm sorry if its wrong. Good Luck!

Explanation:

Answer:

Hair root is 27 dicot is 33

Without whales, krill would probably consume a large portion of the free-floating phytoplankton on the ocean's surface, accelerating climate change noticeably.

What makes the blue whale significant in terms of the environment?

Although blue whales have a huge food need, the ocean environment benefits from them rather than being burdened by them. Their iron-rich excrement is a crucial supply of nutrients for the marine food web, boosting production in the Southern Ocean and increasing fisheries yields.

What impact does blue whale extinction have on biodiversity?

The food source for many animals in the marine ecosystem is the carcasses of whales. The disappearance of whales would deprive other marine species of nutrients, which will have an impact on all species in the ocean.

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Answer:

Wind is air in motion. It is produced by the uneven heating of the earth's surface by the sun. Since the earth's surface is made of various land and water formations, it absorbs the sun's radiation unevenly. Two factors are necessary to specify wind: speed and direction.

Strong winds are due to a strong pressure gradient force. A pressure gradient is how fast pressure changes over distance. So, when pressure changes rapidly over a small distance, the pressure gradient force is large. Strong winds almost always result from large pressure gradients.

Explanation:

Answer:

Answer:

The answer is "Option A,  B, and E".

Explanation:

In specific cell conditions, the F0F1 system of the inner mitochondrial membrane functions as an ATP synthase for generating new ATP ADP proteins and Pi. Even so, this has a specific biological role in non-physiological situations through functioning as an ATPase. Its ATPase acts in such circumstances and transmits large amounts of ATP to both the mitochondrial space throughout the transmembrane proton gradient.

The free radical of the transmembrane can be used by fermenting bacteria without an electron transport system. Its ATPase is being used to generate a proton gradient rather than to hydrolyze ATP. It may be used as a means of transporting flagella or nutrients into its cell.

The statements which are true about the FoF1 complex are:

So, the correct options are A, B, and E.

This complex is present in bacterial and mitochondrial H(+)-ATP synthases both consist of a membranous sector, Fo, which forms an H(+)-channel, and an extramembranous sector, F1, which is responsible for catalysis.

This FoF1 complex is the site of ATP synthesis along with the movement of protons (H+) from the matrix to the IMS. It is effectively operating as a proton pump because it mediates the transport of H+ ions out of the matrix.

Therefore, statements A, B, and E are correct with respect to the FoF1 complex.

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Answer:

dendrites, axons

Explanation:

Dendrites receive messages from other neurons and axons send messages to other.

Answer:

What in the world is this...

Answer: ❤️❤️❤️❤️❤️❤️❤️❤️

Explanation: yeah i need points thx a lot g

An example of a squirrel population would be a group of Eastern Gray Squirrels (Sciurus carolinensis) living in a city park.

An example of a squirrel population would be a group of Eastern Gray Squirrels (Sciurus carolinensis) living in a city park. Scientists may study the population dynamics and ecology of this group of squirrels by conducting surveys and capturing and marking individual squirrels to track them over time. This can provide information on their survival rates, reproduction, and movements, which can be used to estimate the size and growth rate of the population, as well as identify any factors that may be impacting the population, such as disease, predation, or habitat loss.

Additionally, scientists may also conduct transects, or study the population density, distribution of the squirrels in a specific area and the food resources that are available to them, as well as monitor the environmental factors that might affect the population growth.

Another example could be a population of Fox Squirrels (Sciurus niger) living in a rural forest. Here, researchers may study the impacts of logging and fragmentation on their population dynamics and genetic diversity, and understand how these animals are utilizing different food resources throughout the year.

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Answer:People with brown eyes have a large amount of melanin in the iris, ... leading to blue eyes instead of brown in people with a polymorphism in ... result from mutations in genes involved in the production and storage of melanin. ... Heterochromia can be caused by genetic changes or by a problem during eye

Explanation:

I AM SORRY IF AM WRONG

Answer:

My organism is called the Red Panda (Ailurus fulgens). It is a mammal native to the eastern Himalayas and southwestern China. The Red Panda is the only living species of its genus, Ailurus, and is closely related to the Giant Panda, although it has a much more specialized diet. It is an excellent climber and has a thick, woolly coat to help keep it warm in its cold mountain habitat.

The Red Panda has evolved over time to become more specialized in its diet and habitat. Its thick fur helps to keep it warm in the cold mountain environment, while its long, bushy tail helps it balance while climbing trees. Its diet consists mainly of bamboo, but it also eats fruits, eggs, and small animals. Its sharp claws and teeth help it to break open bamboo stalks and to defend itself against predators.

Explanation:

Answer:

The process in which green plants use sunlight to synthesize nutrients from carbon dioxide and water.

Explanation:

Answer:

B. Deletion

Explaination:

Answer:

B. deletion

Explanation:

Answer:the answer is a

Explanation: I just answered it

Smaller cells with a high surface area to volume ratio have the best transfer rates, hence option A is correct.

All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane.

The movement of materials into and out of the cell is controlled by the cell membrane.

A small volume is better in terms of efficiency of transporting molecules throughout the cell, but a large surface area is better for transporting molecules across the cell membrane.

A surface area to volume ratio regulates cell size because as cells become larger, they have less surface area relative to their size.

Therefore, smaller cells with a high surface area to volume ratio have the best transfer rates, hence option A is correct.

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Answer:

Explanation:

The central nervous system controls these movements through the spinal motor neurons which serve as the final common pathaway to the muscles