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lbvjy [14]
3 years ago
13

The study of how gene expression is turned on and off and which considers the

Biology
1 answer:
laiz [17]3 years ago
7 0

Answer:

epigenetics

Explanation:

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A scientist is comparing the outer structure of an onion cell, structure X, to the outer structure of a human skin cell, structu
hammer [34]

Answer:

Structure X is only found in plant cells, and structure Y is found in plant and animal cells.  

Explanation:

The structure found on the outside of the onion cell is the cell wall, which is specific to plants. The structure found on the outside of the skin cell is the cell membrane, which is found on all cells.

Structure X is not living, and structure Y is living.  - this is false, both animal and plant cells are living.

Structure X can be found in some human cells, and structure Y can be found in some plant cells.  - this is false, the opposite is true.

Structure X is only found in plant cells, and structure Y is found in plant and animal cells.  - this is true structure X is the plant cell wall, and structure Y is the cell membrane

Structure X is semipermeable, and structure Y is selectively permeable. Semi-permeable and selectively permeable are essentially the same thing - it means the barrier allows some substances to pass through but not others.

4 0
3 years ago
Read 2 more answers
What did Mendell ask
alexira [117]
He asked to get with my mom
6 0
3 years ago
Sort the descriptions of open clusters and globular clusters into the correct categories
weeeeeb [17]

Answer:

Open Clusters: A, B, F

Global Clusters:  C, D, E

Explanation:

I just got them all correct

8 0
3 years ago
PLEASE HELP ITS URGENT What is the functionof the peripheral nervous system? A. To transmit signals between the body and the bra
Rzqust [24]

Answer:

The peripheral nervous system (PNS) is one of the two components of the nervous system, the other part is the central nervous system (CNS). The PNS consists of the nerves and ganglia outside the brain and spinal cord.[1] The main function of the PNS is to connect the CNS to the limbs and organs, essentially serving as a relay between the brain and spinal cord and the rest of the body.[2] Unlike the CNS, the PNS is not protected by the vertebral column and skull, or by the blood–brain barrier, which leaves it exposed to toxins and mechanical injuries. The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system. In the somatic nervous system, the cranial nerves are part of the PNS with the exception of the optic nerve(cranial nerve II), along with the retina. The second cranial nerve is not a true peripheral nerve but a tract of the diencephalon.[3]Cranial nerve ganglia originated in the CNS. However, the remaining ten cranial nerve axons extend beyond the brain and are therefore considered part of the PNS.[4] The autonomic nervous system is an involuntary control of smooth muscle and glands. The connection between CNS and organs allows the system to be in two different functional states: sympathetic and parasympathetic

Explanation:

3 0
3 years ago
Two snapdragon plants are crossed. One plant produces red flowers and the other plant produces white flowers. The cross between
Anuta_ua [19.1K]

Answer:

The answer in B) The offspring have one allele that codes for red and one allele that codes for white.

Explanation:

Let's say that the red flower has Bb, and the white flower has bb. In a punnet square you'd get 50% being Bb and another 50% being bb. The allele bb would be pink.

I hope this helps!

6 0
3 years ago
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