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DedPeter [7]
3 years ago
10

Plants and animals must have the element nitrogen because it is an important

Biology
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

nitrogen fixing bacteria

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Flower color in a particular plant species is determined by one gene locus. The allele at the locus can code for either red flow
julsineya [31]
The answer is D. This is an exmaple of incomplete dominance. Red and blue make purple. Because there is no purple alleles, C is false. Because there you can only have 2 alleles total B is false. A is false because having two red alleles makes a red flower.
3 0
3 years ago
Which of the following does NOT accurately state a transfer of carbon in the carbon cycle?
Doss [256]

Answer:

The point that does NOT accurately indicate a carbon transfer in the carbon cycle is that burning of wood and debris pulls carbon from the atmosphere to use as energy.

Explanation:

The carbon cycle involves the journey that carbon makes between living organisms and their surrounding environment, i.e. the entire biosphere, geosphere, hydrosphere and atmosphere, and is therefore considered a biogeochemical cycle.

In living organisms, inorganic carbon is taken up by plants to make organic molecules, which will be used by animals - which release CO₂ into the atmosphere - or dead organic matter provides carbon to the soil.

The combustion of wood and debris involves the oxidation of a combustible material -which requires oxygen from atmosphere- to then release CO₂ as a product. So it is incorrect to say that burning of wood and debris pulls carbon from the atmosphere to use as energy.

6 0
4 years ago
In What stage of the cell cycle will cytokinesis begin
DaniilM [7]

Answer:

It will begin in the anaphase

Explanation:

sorry if im wrong

8 0
3 years ago
During the _____ phase of selye's theory of stress, considerable energy is expended to adapt to the stressor.
mina [271]

According to Selye's theory of stress, during the condition of the stress, the body undergoes the general adaptation syndrome, which occurs in three stages. These three stages are fight or flight, resistance reaction, and exhaustion.

The flight or fight reaction is stimulated by the hypothalamus. It results in the excitement of the sympathetic division of the autonomic nervous system. The resistance reaction is caused by the hormones released by the hypothalamus; this is long lasting and provides ATP (adenosine triphosphate) molecules for the counter reaction to the stress.  

As the result of use of ATP and other energy resource from body during the resistance reaction, the body becomes deprived of energy. This causes the exhaustion in the body.  

So, the resistance phase of the stress expands a considerable amount of energy, which causes exhaustion.  


8 0
3 years ago
A researcher is interested in finding out if the amount of amylase, a digestive enzyme found in saliva responsible for digesting
kogti [31]
The answer is <span>Take consistent amounts of saliva samples from a number of people who have not eaten in 8 hours and measure the quantity of amylase in each sample.

First, the researcher needs to know the quantity of amylase in the <u>same</u> amount of saliva. Thus the amount must be consistent and not varying. 
Next, people must not eat in 8 hours, so they are all in the same condition at the moment of collecting saliva. If some eat immediately before the sample collecting while some eat 8 hours before, the content of their saliva will be different. 
For the correct results, all conditions must be the same.</span>
4 0
3 years ago
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