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makvit [3.9K]
3 years ago
5

3. How do cells respond to contact with other cells?

Biology
1 answer:
Stells [14]3 years ago
6 0

Cells use the proteins called receptors which can bind the signaling molecules and initiate a physiological response with the other cells.

<u>Explanation:</u>

  • The cell to cell interaction is also known as Cellular interaction. The cells that can communicate with each other in three ways Gap junctions, Tight Junctions, desmosomes.
  • The signaling of cells allows communicating with adjacent cells and distant cells.
  • Ligand binding to the receptor allows for signal transduction in the cell. To terminate the ligand will be removed from the access with the receptor.

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d. ligand-gated ion channel

Explanation:

When a neurotransmitter released from the pre-synaptic neuron binds to a ligand-gated ion channel on the post-synaptic neuron, that neuron depolarizes and fires.

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Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to
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Answer:

The process that Mildred used is known as Radiocarbon dating

Note: The question is incomplete. The complete question is given below:

Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to measure the amount of carbon-14 in her sample and compare this to the amount of carbon-12 in it. She uses this information to calculate that the fossil is 4,500 year old. The process that Mildred used is known as _______

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Explanation:

Radiocarbon dating is a process of determining the age estimates of various objects and materials using the radioactive properties of an isotope of carbon, carbon-14.

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There is a fairly constant ratio of carbon-12 and carbon-14 in living organisms. However, at death, due to the decay of carbon-14 to carbon-12, the ratio begins to change. Since the rate of decay of carbon-14 is fairly constant, a property known as half-life, the time it has taken for carbon-14 to decay to carbon-12 can be calculated. This calculated time will givee the age of the fossilised material.

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And object is seeing to either speed up slow down or change direction these behaviors are caused by
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The correct answer is:

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8 0
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The dipeptide would digest faster. The dipeptide would digest slower or not at all.

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There are two places where ball and socket joints are found.

3 0
4 years ago
Read 2 more answers
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