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Andrej [43]
3 years ago
7

PLEASEE HELPPP!!!!

Biology
1 answer:
dusya [7]3 years ago
8 0

Answer:

<em>The correct option is B) Freshwater snails and small fish</em>

Explanation:

As we can see from the food web, the fresh water snails and the small fishes both feed on algae and water plants as their source of food hence, both these organisms feed on the same food.

Other options, like option C, is not correct because water boatman and water plants do not feed on the same sources. Water boatman feeds on reeds whereas water plants do not. Water plants will make their own food.

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maxonik [38]

Answer:

One thing missing would be the units of the rates and measurments

The independent variable is the light intensity and the dependent is the rate of photosynthesis

Explanation:

5 0
2 years ago
16. Why should the recessive phenotype be used first to determine the q squared value instead of the dominant phenotype to deter
podryga [215]

The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

<h3>What is a recessive phenotype?</h3>

A recessive phenotype is a phenotype which expresses the recessive trait of a gene.

The recessive phenotype is always h0m0zygous for that triat to be expressed.

In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:

  • p^2 + 2pq + q^2 = 1

where;

  • p^2 is the h0m0zygous dominant phenotype frequency
  • 2pq is the heterozygous phenotype frequency
  • q^2 is the h0m0zygous recessive phenotype frequency

Therefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

Learn more about recessive phenotype at: brainly.com/question/22117

8 0
2 years ago
What is a change in a DNA sequence called
Shkiper50 [21]
Mutation. this happens when a cell copies its DNA to divide. its more common than you may think, a "typo" occurs every 100, 000 or so nucleotides, thats about 120, 000 "typos" every time a cell divides. 
6 0
3 years ago
When the muscle cell contracts
Luden [163]
C I think would be the best answer for this question!
4 0
4 years ago
5.
Fittoniya [83]

Answer:

Prokaryotic cells only have free-floating DNA, while eukaryotic cells have DNA enclosed in a nucleus. ... Prokaryotic cells only have cell membranes, while eukaryotic cells have both cell membranes and cell walls

7 0
3 years ago
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