A polypeptide is a sequence of?
A. proteins
B. amino acids

Answers

Answer 1

Answer: Amino Acids. A polypeptide IS a protein.

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A plant's photoperiod is the amount of time each day that the plant receives sunlight. A plant with a 12L:12D photoperiod receives 12 hours of light and 12 hours of dark per day. A researcher investigated whether photoperiod affects the development of flower buds in chrysanthemums, a type of flowering plant. She maintained three samples of chrysanthemums that did not initially have any flower buds under different photoperiods. After two weeks, the researcher recorded the presence or absence of flower buds in each sample. The researcher's results are shown in the table. Sample Photoperiod Results 1 13L:11D fully developed flower buds formed on all plants 2 14L:10D partly developed flower buds formed on some plants 3 15L:9D no buds formed on any plant Which statement is best supported by the researcher's findings?

Answers

Answer:

13L:11D

Explanation:

Based on the photoperiod there are two types of plants -

a) Short day plant

b) Long day plant

Here the term short and long day do not mean that the provided length of day are the critical length of day required for reproduction. But opposite to that it means that the length of the day required for reproduction must be

a) Shorter than the defined length of day for short day plant

b) And longer than the defined length of day for long day plant

Chrysanthemums is a short day plant and thus option 1 with 13L:11D will produce fully developed flower buds

Option A is correct 13L:11D

Final answer:

The researcher's findings illustrate that photoperiod greatly affects the development of chrysanthemum buds, with longer periods of light exposure reducing bud formation. The mechanism behind this is likely due to photoperiodism, a biological response that allows plants to regulate their growth based on day length.

Explanation:

The researcher's findings suggest that the photoperiod, or duration of light exposure, significantly impacts the development of flower buds in chrysanthemums. In the experiment, chrysanthemums with a 13L:11D photoperiod produced fully developed flower buds. In contrast, the plants with a 14L:10D photoperiod produced only partly developed buds and those with a 15L:9D photoperiod did not develop any buds. It is evident from these results that there is a decrease in bud formation with an increase in light hours. Chrysanthemums, therefore, seem to need a specific balance of light and darkness for optimal flower bud development.

The mechanism behind this is likely related to photoperiodism, a biological response to the timing and duration of day and night that controls flowering and other growth in plants. Plants use the phytochrome system to sense changes in day length, which is an essential indicator of season. This system allows them to regulate their physiological activities, such as flowering, accordingly. So, the results of this study underline the importance of photoperiodism in flowering plants.

Learn more about Photoperiodism here:

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Does anyone know the answer for this ? If the answer is correct ill mark u as the best choice!

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Lipids trust me I google

State one biological advantage this method of reproduction has over cloning

Answers

You could say variation in offspring (so cloning things they basically just multiple the exact same thing but with reproduction, whatever is made differs a little bit or a lot from its "parents"

The Eastern grey squirrel lives mostly in oak trees that have a medium gray bark. In some cities, oak tree bark is darkening due to air pollution. This Eastern grey squirrel shows melanism, or the increase in black pigment in its fur. What is MOST LIKELY the reason for the change in fur color?

Answers

It is a way to camouflage the squirrel in a changing habitat.

Answer:

The answer is D: It is a way to camouflage the squirrel in a changing habitat.

Explanation:

A light-collecting inut in a chloroplast is a ____________.

Answers

The photosystem
This unit absorbs light energy for photosynthesis.

Which would have to happen to keep the population growth of cheetahs in the same of 2013

Answers

Conservation efforts

It is true that conservation efforts have resulted in restoration of some wildlife habitats. Since some animals, over the change of time and of human’s abusive efforts, could no longer live, the governmental an non-governmental organizations and volunteers are now doing ways to alleviate the said problem and so far it has been effective as som species close to extinction was saved (e.g. platypus).

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