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VashaNatasha [74]
3 years ago
13

The sympathetic preganglionic neuron cell bodies are housed in the _______ horn of the appropriate thoracolumbar regions of the

spinal cord.
Biology
1 answer:
Naddik [55]3 years ago
5 0

Answer:

The correct answer is "lateral horns of the T1L2 segments of the spinal cord".

Explanation:

The missing options of this question are:

A. anterior columns of the spinal cord.

B. posterior columns of the spinal cord.

C. sympathetic trunk.

D. lateral horns of the T1L2 segments of the spinal cord.

E. paravertebral ganglia.

The correct answer is option D. "lateral horns of the T1L2 segments of the spinal cord".

The cell bodies of the sympathetic preganglionic are located in the visceral efferent column of the spinal cord, which is also known as the lateral horns of the spinal cord. Since the cell bodies belong to preganglionic nerve fibers, they are always located close to the spinal cord. On the other hand, parasympathetic ganglia are often not located within the spinal cord, and act separate from the autonomic nervous system.

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kramer

Picture from another source is attached

Answer:

1. BbRr

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Explanation:

1. The genotype of the parents can be seen at the top of the cross "BbRr". The genotype is what alleles the parents have. In this case, it is the alleles of two different genes - for color and texture of fur. The genotype gives rise to 4 possible allele combinations that an offspring can inherit (BR, Br, bR or br)

2. The dominant allele is usually displayed as a capital letter, and the recessive as lowercase. Without further information, we will assume this is the case. The parents are heterzygous for both traits, meaning they each carry a dominant and recessive allele for both traits. That means the dominant allele will be expressed in the phenotype. Therefore, the guinea pigs will have black, rough fur.

3. Empty box shown in the attachment. We simply read the column and row  of alleles that are contributing to this offspring's genotype. We can see looking at the square that from one parent (top) the baby will inherit bR, and from the other parent (left) it will inherit bR as well. This means the baby's genotype will be bbRR

3 0
3 years ago
What's the difference between descriptive experiment and comparisons?
Sholpan [36]

Answer:

Descriptive research is a type of research that studies the participants that take part in the research or a certain situation. Descriptive research does not limit to either of quantitative or qualitative research methodologies, but instead, it uses elements of both, often within the same study. Therefore, a descriptive researcher often uses three major ways to collect and analyse the data. They are observations, case studies and surveys.

now i dont know much about comparisons but im assuming your comparing your own experiment to someone elses to see if you get the same result.

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4 years ago
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Explanation:

I just took the test and got it right

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