Which of the following is a nucleotide of DNA?a
ribose, phosphate, uracil
b
deoxyribose, phosphate, uracil
c
ribose, phosphate, thymine
d
deoxyribose, phosphate, cytosine

Answers

Answer 1
Answer: D.


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While studying enzyme kinetics in the lab, a scientist observed that the rate of a reaction involving enzyme amylase increased as the concentration of starch increased. With further increase in starch concentration, the amylase activity did not change. Why did this happen?
After a period of (blank), a person who divorces will begin to construct a new identity as a single person. A: attachment anxiety B: separation anxiety C: separation shock D: attachment shock
Which one of the following accurately describes the reactions within photosynthesis? A. The light-independent reactions use ATP and NADPH. (B.) The light-independent reactions are responsible for making ATP and NADPH. C. The light-independent reactions use the sunlight to drive its processes. D. The light-dependent reactions are responsible for making sugars. I put B but it was wrong.

As part of a science experiment, Jose did a test for starch on a slice of apple and a slice of potato. The yellow-orange iodine solution stayed the same color when it was put on the apple, but it became black on the potato. Why did the iodine solution change color on the potato?

Answers

If iodine solution reacts with starch, it will change color into black.
Since the yellow-orange iodine solution stayed the same color when it was put on the apple, it can be concluded that there is no starch in the apple. On the other case, the black color of the potato suggests that there is a great amount of starch in the potato. Anyway, this does not mean that there is no starch in the apple at all. As fruits ripen, starch slowly changes to sugar. Iodine cannot react with sugar, so the black color in the apple is missing.

Answer:

The iodine reacted with the potato to form a new substance.

The human brain is an example of a

Answers

 it is an organ. the main organ in the body. I wish your question was a little more clear, like multiple choice would be very helpful to what my choices are.

In general, how do many human activities influence the carbon cycle?

Answers

Answer:

Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.

Explanation:

Carbon moves from the atmosphere to plants. ...

Carbon moves from plants to animals. ...

Carbon moves from plants and animals to soils. ...

Carbon moves from living things to the atmosphere. ...

Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...

Carbon moves from the atmosphere to the oceans.

Final answer:

Human activities, such as burning fossil fuels, deforestation, and animal husbandry, significantly affect the carbon cycle. These activities release large amounts of carbon dioxide into the atmosphere at a rate faster than it can be naturally absorbed, contributing to global warming and climate change.

Explanation:

Human activities significantly influence the carbon cycle. This happens in various ways such as the burning of fossil fuels, deforestation, and animal husbandry. These activities release large quantities of carbon dioxide into the atmosphere at a rate faster than it can be naturally absorbed.

Burning of fossil fuels like coal, oil, and gas releases carbon that has been stored for millions of years, increasing the levels of atmospheric carbon dioxide. This burning process has accelerated since the Industrial Revolution and contributes to an increase in carbon dioxide levels in the atmosphere.

Deforestation indirectly accelerates the rise in carbon dioxide levels. Trees absorb carbon dioxide for photosynthesis, and when they are cut down, this absorption process is interrupted. Additionally, when these trees are burned or rot, the stored carbon is released back into the atmosphere as carbon dioxide.

Furthermore, animal husbandry practices contribute to the increase in atmospheric carbon. The rearing of large numbers of livestock to meet the protein needs of the growing global population results in increased levels of carbon dioxide and methane production. The livestock respire, releasing carbon dioxide, and also produce methane, a potent greenhouse gas, through their digestive processes.

These human activities alter the nature of the carbon cycle and subsequently contribute to global warming and climate change.

Learn more about Human Influence on the Carbon Cycle here:

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Ovaries are about 5 inches in size.

Answers

3 to 5 cm is your answer
they are 
3-5 centimeters

Give three functions of the cell surface membrane. (plasma membrane)

Answers

I can help with one but not 3... The Cell membrane can be used to help protect the inner parts of the cell such as the, mitochondria, cytoplasm, endoplasmic reticulum. (List more).

A closer cross-section view of a stem revealed continuous rings along the interior of the stem. Which type of stem could it be?. . A. Herbaceous dicot stem. B. Woody dicot stem. C. Monocot stem

Answers

"Woody dicot stem" is the one among the following choices given in the question that is the type of stem described in the question. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has come to your desired help.

The right option is; B. Woody dicot stem

Woody dicot stem is a type of dicot stem that is made up of a cork, epidermis, cork cambium, xylem, phloem, cortex, vascular cambium, and pith. When woody dicots becomes mature, the vascular bundles connect together to form continuous rings along the interior of the stem. During winter in each year when there is reduced growth in plants that have woody dicot stems, there is production of annual rings which can be counted to determine the age of the plant.