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3 years ago

When an organism is finished growing, which of the following best describes what happens on the cellular level?

Biology

2 answers:

ololo11 [35]3 years ago

7 0

it’s cells reproduce and die at the same rate

Setler79 [48]3 years ago

7 0

Answer: Option B

Explanation: When the organism has stopped growing then there is no visible growth in the body of the organism.

When the cells proliferate and dies at the same rate, the change is zero and the body seems to be finished growing. This can be described on the cellular basis that the number of cells remains constant as the rate of proliferation and death is same.

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Black coffee has a pH around 5; hand soap has a pH of 10. How many times more acidic is coffee relative

Anon25 [30]

Answer:

$\boxed {\boxed {\sf 10^5 \ or \ 100,000 \ times \ more \ acidic}}$

Explanation:

The pH scale stands for the power or potential of hydrogen. It measures how acidic or basic a solution based on the concentration of hydrogen ions and a scale from 1 to 14.

This scale is unique because it is logarithmic. So, every time the pH changes by 1 on the scale, the actual concentration of the solution increases or decreases by a tenfold.

So, a solution with a pH of 7 is ten times more acidic than a solution with a pH of 8. This can be translated to:

$10^ {difference \ in \ pH}$

The black coffee has a pH of 5 and the hand soap has a pH of 10. We want to find how many times more acidic coffee is, so we subtract 5 from 10 and get 5. The difference in pH is 5.

$10^5=100,000$

Coffee is <u>10⁵ or 100,000 times more acidic than hand soap.</u>

3 0

2 years ago

Neurons in the parasympathetic pathway use which neurotransmitters?

Kay [80]

<h2>Acetylcholine</h2>

Explanation:

Acetylcholine is a chemical that is found between the nerve synapses, or gaps, between nerve cells. When activated, it causes the contraction of skeletal muscles and activates glandular functions in the endocrine system. Think of acetylcholine as a mailperson; residents cannot receive their mail until he or she comes and delivers it to the mailbox. Like mailpersons who deliver the mail and move on to the next house, acetylcholine acts quickly and does not hang around. As a result, acetylcholine is rapidly broken down by another chemical substance called cholinesterase.
Acetylcholine was the first neurotransmitter scientists discovered, as well as the most abundant neurotransmitter in the body. A neurotransmitter is a chemical that is released by a neuron, or nerve cell, that sends a signal to another neuron across a synapse. The neurotransmitter binds to receptors to affect how the signal is received. The purpose of the neurotransmitter is to either amplify or inhibit the signals sent between the neurons.
Acetylcholine plays an important role in the signal of muscle movement, sensation of pain, learning and memory formation, the regulation of the endocrine system and rapid eye movement (REM) sleep cycles.

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3 years ago

Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partne

Lesechka [4]

Behavioral Isolation
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3 years ago

What kind of bond links amino acids together in a polypeptide sequence?.

zhuklara [117]

Peptide bonds link amino acids together to form polypeptide chains

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2 years ago

What do you think happens to a fish’s behavior in cold climates during the winter? Explain your answer.

svetoff [14.1K]

Fish are cold-blooded or poikilothermic, meaning that their body temperatures vary with the surrounding temperature. During the cold of winter fish become less active. They find little pockets out of the way of fast moving water where they can stay still and conserve energy.

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3 years ago