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seraphim [82]
3 years ago
10

What is this? Please answer with an explanation

Biology
2 answers:
avanturin [10]3 years ago
8 0

Answer:

I think it means that living things compete with each other when the isn't enough food. so I'd say A.

Explanation:

A. means when there are very little amount of food

B. means when there are a lot of food.

C. means when they create their own food. Hope this helps!

Nataly [62]3 years ago
8 0

Answer:

Nutrients are limited

Explanation:

If nutrients are abundant, consumers do not need to compete with one another for resources. In contrast, if there is not much food around, then consumers have to compete with one another to make sure they get adequate nutrition. For example, imagine the consumers are rabbits and there are not very many plants for them to eat. These rabbits will be in competition with one another. In contrast, if there are lots of plants to eat, they will not need to compete for resources.

Consumers do not make their own nutrients, producers, such as green plants, create their own nutrients by photosynthesis.

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Supercoiling is important for DNA structure, because Supercoiling is important for DNA structure, because it provides energy for
Vinil7 [7]

Answer:

it condenses the DNA so that it can fit inside the cell.

Explanation:

Supercoiling is a level of genome packaging and is important for the packaging of the DNA which is about 2m in length inside a nucleus that is about 6microm. Supercoiling refers to the over (positive supercoiling) or under winding (negative supercoiling) of a DNA strand, and is an expression of the strain on that strand. Supercoiling is in compacting DNA, and also allows for the regulation of access of transcriptional machinery and other biological activities to the DNA and in turn gene expression. Certain enzymes such as topoisomerases are able to change DNA topology to facilitate access of DNA replication or transcription.

4 0
3 years ago
(30 points)the compound water is made from the gases oxygen and hydrogen how is water different from the elements that make it u
butalik [34]

The molecule of water is different from the molecules of oxygen and hydrogen in the following ways:

1. Combustion: Oxygen supports combustion, hydrogen burns in the air to form water. Water is not combustible. It rather inhibits combustion when poured over burning substances.

2. State of matter: Water is a liquid in room temperature whereas oxygen and hydrogen are gases. The polar nature of water contributes to hydrogen bonding between the hydrogen and oxygen atoms of water.

3. Density: Water is denser than both oxygen and hydrogen. Hydrogen bonding helps pack more molecules of water in less space.

4. Freezing point: Water freezes to ice at 0°C whereas oxygen freezes at -218°C and hydrogen freezes at -259°C.

6 0
3 years ago
Read 2 more answers
Brown fur is dominant to white fur in mice. in a population of mice, 64% have brown fur and 36% have white fur. based on these f
tester [92]

<span>a.       </span>The frequency of the dominant allele: ___0.4______

<span>b.      </span>The frequency of the recessive allele: ____0.6_____

<span>c.       </span>The percentage of mice that are homozygous dominant: __16%_______

<span>d.      </span> The percentage of mice that are heterozygous: _48%________

<span>e.      </span>The percentage of mice that are homozygous recessive: __36%_______

 

Let us assign the dominant allele (that of brown hair) letter R while

We assign the recessive allele (that of white hair) letter r

We then note down the Hardy-Weinburg equation p2 + 2pq + q2 = 1

Brown fur population (p2 + 2pq) = 64% = 0.64

White fur population (q2) = 36% = 0.36

Then we also remember that the frequencies of both allele add up to 1 (p + q = 1);

Therefore q = ü.36 = 0.6

P = 1 – q = 1 – 0.6 = 0.4

The heterozygous population will be 2*0.6*0.4 = 0.48 =  48%

Homozygous domain population will therefore be (64% - 48%) = 16%






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The shape of the nucleus is maintained by
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