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Elis [28]
3 years ago
9

Compare and contrast cell communication by nerve signal and communication across plasmodesmata.

Biology
1 answer:
Dafna11 [192]3 years ago
5 0
Chapter nine,section 5 in your textbook page 149
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Choose the statement that accurately describes the relationship between cytokinesis and mitosis.
mart [117]
The correct sequence of events that occur during the cell growth and reproductive process or cell cycle would involve that cytokinesis which involves splitting or separating of the cytoplasmic media connecting the cells together to produce 2 new cells that have the same genetic content, occurs after Mitosis.

The correct response would be C. Cytokinesis follows mitosis.
7 0
3 years ago
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What is the ultimate measure of evolutionary success?
vfiekz [6]

There is only one measure of "evolutionary success": having more offspring. A "useful" trait gets conserved and propagated by the simple virtue of there being more next-generation individuals carrying it and particular genetic feature "encoding" it. That's all there is to it.

One can view this as genes "wishing" to create phenotypic features that would propagate them (as in "Selfish Gene"), or as competition between individuals, or groups, or populations. But those are all metaphors making it easier to understand the same underlying phenomenon: random change and environmental pressure which makes the carrier more or less successful at reproduction.

You will sometimes hear the term "evolutionary successful species" applied to one that spread out of its original niche, or "evolutionary successful adaptation" for one that spread quickly through population (like us or our lactase persistence mutation), but, again, that's the same thing.


6 0
3 years ago
The solutions in the two arms of this U-tube are separated by a membrane that is permeable to water and glucose but not to sucro
DaniilM [7]

Answer:

The correct answer to the question is: the level of liquid in Side A will rise.

Explanation:

  • Sucrose is formed of two molecules of glucose but the membrane is impermeable to it.
  • The given membrane is said to be permeable to water and glucose.
  • Through a semi-permeable membrane, molecules tend to move from a region where its concentration is high to another region where its concentration is low by the process of diffusion until its concentration in the two regions becomes equal. This phenomenon is known as Osmosis.
  • Concentration gradient of a molecule can be defined as the difference in the concentration of the molecule in two different regions separated by a semi-permeable membrane.
  • Considering glucose, the concentration of glucose is low in side A (1M) and high in side B (2M), so it will tend to move from side B to side A down its concentration gradient.
  • Considering sucrose, although its concentration is high in side A (2M) but low in side B (1M), it is unable to move as the membrane is impermeable to it.
  • Water tend to move from a region where the concentration of solute is low (or water concentration is high) to a region where the concentration of solute is high (or water concentration is low).
  • Due to the movement of glucose from side B to side A, the concentration of total solute concentration becomes high in side A as compared to side B. Therefore, water would move from side B to side A.
  • Hence the level of liquid in Side A will rise after sometime.

3 0
3 years ago
Read the sentence below. Which words make up the phrasal compound?
Flura [38]
The answer is base pairs.
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What would a stable pond ecosystem not contain
Westkost [7]
<span>more consumers than producers</span>
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