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Georgia [21]
1 year ago
15

Which best describes alleles?

Biology
2 answers:
borishaifa [10]1 year ago
7 0
Answer: D
Explanation: alleles are usually dominant or recessive is the only correct answer in this case.
8090 [49]1 year ago
3 0

Answer:

D. they are usually dominant or recessive.

Explanation:

alleles are pairs of genes found on a particular spot a chromosome. If one is dominant over the other it give rise to a particular trait.

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Determine whether the statement is true or false. Suppose P(t) represents the population of bacteria at time t and suppose P'(t)
Lorico [155]

Answer:

TRUE

Explanation:

If the population follows a logistic growth curve, the graph of P vs t will look like the diagram below.

The rate of growth (P') increases slowly at first, then increases rapidly from 2 to 4, and then slows down, but always P > 0.

The graph has an inflection point at (3, 1000). That's the point at which the rate of growth starts slowing down.

When t < 3, P'' > 0.  

When t = 3, P'' = 0.

When t > 3, P'' < 0, because the rate of population growth is slowing down.

Thus, if the population is in the final phase of logistic growth, the population is increasing at a decreasing rate (TRUE)..

4 0
3 years ago
Where are unmyelinated nerve fibers surrounded by schwann cells?
Ray Of Light [21]

Answer: The myelinated nerve fibres are enveloped with Schwann cells, it form a myelin sheath around the axon.

Unmyelinated nerve fibres is enveloped by a Schwann cell that doesn't form a myelin sheath around the axon, and  found in autonomous and the somatic neural systems. Sympathetic Nervous system is part of Autonomous Nervous system.

Explanation:

I'm Smart

5 0
2 years ago
A _____ is a section of a chromosome that codes for a trait. The specific combination of alleles an organism has is called its _
Lesechka [4]

Answer:

A gene is a section of a chromosome that codes for  trait.The specific combination of alleles an organism has is called its genotype which affects the organisms features.

Explanation:

7 0
3 years ago
Unlike identical twins , fraternal twins..
Vikki [24]

Answer: A

Explanation:

8 0
3 years ago
Read 2 more answers
pick one organ in the human body and describe how the structure (shape, size, location) of that organ is related to its function
Anna11 [10]

Answer:

The kidney consists of an inner renal medulla and an outer renal cortex. Between these is a flow of Nephrons. They work together to create urine.

8 0
2 years ago
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