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Yanka [14]
3 years ago
9

Why do bats and dolphins have such ranges of hearing?

Biology
1 answer:
garri49 [273]3 years ago
6 0
Over time evolution caused the, to developed these skills in order for them to survive by means of finding food
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This statement describes the Maya's opinion of animals, based on the Popol Vuh.
lord [1]
<span>Animals cannot worship the gods and are destined to be food for humans.</span>
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3 years ago
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Foods that allow microorganisms to grow are called parasites. TRUE or FALSE
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False. That question doesn't really make sense also but it should still be false given the context.
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If you have a pet cockroach with a brown body, how could you find out if it is
aleksklad [387]

Answer:

by testcrossing with a homozygous recessive partner

Explanation:

<u>If a pet cockroach exists whose zygosity is unknown, this can be determined by a test cross. A test cross involves crossing an organisms whose zygosity is unknown with a partner that is homozygous recessive for the same trait.</u>

Let us assume that brown body is represented by the allele B, the dominant allele. The homozygous recessive version would be bb.

The genotype of a brown cockroach whose zygosity is not known can be denoted as B_, where '_' can be a 'B' or a 'b'.

When B_ is crossed with bb:

B_   x   bb

Progeny

2 Bb

2 _b

The phenotype of Bb would be brown (since B is dominant over b) while the phenotype of _b would depend on the zygosity level of the cockroach.

If the unknown genotype is BB, then _b becomes Bb and the phenotype will be a brown body. This means that all the progeny will appear brown. (<em>see the first attached image for the Punnet's square</em>)

In other word, if the unknown genotype is bb, then _b becomes bb and the phenotype will be a alternate color (non-brown) body. This means that 50% of the progeny will appear brown while the remaining 50% will be in the alternate color. (<em>attached</em>

3 0
3 years ago
Hooray! There’s no school today. This is because the rain that was left on the roads and trees last night froze. What must have
Lorico [155]
A) the water particles must have lost energy. As things get warmer, the particles have more kinetic energy and begin to move faster.
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4. Write the building units of the below given nutrients.
KATRIN_1 [288]

Explanation:

1)

building blocks of Carbohydrates are monosaccharides that are simple sugars

2)amino acids are the building units of proteins there are 20 amino acids found in human body that are building blocks of proteins

3)Nucleotides are the building blocks (monomers) of nucleic acids, DNA and RNA.

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