Review Paragraph 5. What factor would not affect the island lizard gene pool once they

What would probably happen if a long neuron had one continuous myelin sheath down the length of the axon with no nodes of Ranvie

Fantom [35]

The signal would fade because it is not renewed by the opening of more sodium channels

Myelin sheaths protect nerve axons from damage. These sheaths are a lipid-rich stretch of the plasma membrane formed in the peripheral nervous system (PNS) by Cell bodies and in the central nervous system by oligodendrocytes (CNS). The myelin sheath is periodically broken all along length of the axon by specific areas known as nodes of Ranvier, which are needed for action potential propagation along the axon. The Ranvier nodes are critical in the speed and timing of impulse transport from one neuron to another, and variations in size or activity have the potential to compromise a neuron's efficacy, resulting in the emergence of neurological diseases.

To know more about Neurons refer to brainly.com/question/15201518

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7 0

2 years ago

Why do you think the H-bonds only last a short time before breaking and reforming?

lbvjy [14]

Answer: The room temperature thermal energy is about 2.5 KJ/mol, where areas hydrogen bond energy is in the range of 6-15 KJ/mol. So it must not only for thermal fluctuations. (please be specific with reference)

Explanation:

8 0

3 years ago

Which statement is true regarding the kingdoms of the domain Eukarya?

tatiyna

Answer:

B. Members of Plantae and some members of Protista are autotrophs.

Explanation:

All the plants and some protists like euglena are autotrophs i. e. make their own food with the help of chloroplast in the process of photosynthesis. All members of kingdom Plantae cannot move from one place to another like animals. Protists are the organisms which is made of one cell and they have the characteristics of fungi, plants and animals.

3 0

4 years ago

Can anybody say what phase each letter goes with? I am having a very hard time

ioda

Answer:

A is called Prophase

B is called Anaphase

C is called Metaphase

D is called Telophase

Explanation:

These can get confusing but I'll explain it for you.

The first stage of mitosis is Prophase.

In this stage the chromosomes become visible and the centrioles separate and move to opposite poles of the cell.

The second stage of mitosis is Metaphase.

In this stage the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere.

The third stage of mitosis is Anaphase.

In this stage the sister chromatids separate into individual chromosomes and are pulled apart.

The fourth and last stage of mitosis is Telophase.

During this stage the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes. Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.

The process that follows the last stage of mitosis is called Cytokinesis.

With two complete copies of the DNA now in two different regions of one cell, the cell membrane will pinch and divide the cytoplasm in half. The result is two individual cells that are identical to the original cell. Each of the two new cells have a complete copy of the DNA and contain all of the organelles that the original cell had.

Hopefully, this eases the problem for you and you understand it better.

Also, this image might help:

Let me know if you any other questions about this.

Good luck:)

4 0

4 years ago

Matching - select the best answer and place it next to questions below.

GrogVix [38]

Answer:

Hair root is 27 dicot is 33

8 0

3 years ago