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lions [1.4K]
4 years ago
9

Which statement best explains why invertebrates often have outer skeletons but vertebrates do not?

Biology
2 answers:
quester [9]4 years ago
8 0
The outer skeleton provides protection due to the fact that invertebrates do not have backbones
kolbaska11 [484]4 years ago
8 0

Answer:

The correct answer is A or The outer skeleton provides protection, since invertebrates do not have backbones.

Explanation:

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3 years ago
In a population of 200, 86 individuals express the recessive phenotype. What percent of the population would you predict would b
Nitella [24]

Answer:

The correct option is;

D. 45%

Explanation:

From the Hardy- Weinberg law, we have;

p² + 2·p·q + q² = 1

p + q = 1

Where:

p = Dom inant allele frequency in the population

q = Recessive allele frequency in the population

p² = The percentage of individuals in the population that are hom ozygous dominant

q² = The percentage of individuals in the population that are homo zygous recessive

2×p×q = The percentage of hete rozyous individuals in the population

The number of individuals that express the recessive phenotype = 86

The number of individuals in the population = 200

The percentage of  individuals that express the recessive phenotype, q² = 86/200 = 0.43

Therefore;

q = √0.43 = 0.656

p + q = 1

p = 1 - q = 1 - 0.656= 0.344

∴ The frequency of  individuals that express the do minant phe notype, p = 0.344

The percentage of heterozyous individuals in the population = 2×p×q × 100 = 2 × 0.656 × 0.344 × 100 = 45.15% ≈ 45%

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3 years ago
Which one of the following is a microbe
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D is the answer to the question
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Compare and contrast aerobic and anaerobic respiration. We need to discuss the following points: stages involved, locations in t
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Answer:

Differences between aerobic and anaerobic respiration is whether or not oxygen is present. . During aerobic respiration, carbon dioxide, water, and ATP are produced. During anaerobic respiration, lactic acid, ethanol, and ATP are create, aerobic os used when heart rate and breathing rate rise, anaerobic is used during the first 1-2 mins of exercise, occurs in the cytoplasm of cells, while aerobic occurs in the mitochondria of the cells,  glycolysis occurs in both,  both are respiration, and both create ATP

Explanation:

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Identify the niche of the deer
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4 years ago
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