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stellarik [79]
2 years ago
11

1. Get 1 piece of bread.

Biology
1 answer:
Tju [1.3M]2 years ago
7 0
23 because of 1
Piece of bread
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The act of breathing raises the blood oxygen levels, lowers the blood carbon dioxide concentration, and raises the blood pH. Acc
Alexus [3.1K]

C. a rise in blood carbon dioxide concentration

Explanation:

Negative feed back mechanism refers to the control mechanism in which a product of a particular pathway controls the switch on and switch off of that particular pathway.

Since breathing increases the blood oxygen concentration and lowers carbon dioxide concentration and pH. The sensors that regulate the breathing should respond to oxygen concentration as the carbon dioxide is the by-product of respiration and is responsible for increasing blood pH. Thus  increased Carbon dioxide levels in blood is the only factor which will trigger breathing.

5 0
3 years ago
The epicenter of an earthquake is located 2,800 kilometers from a seismic station. Approximately how long did the s-wave take to
Pani-rosa [81]

Answer:

For a approximate answer, you need the speed of the s-wave which is not in the question, to find the time.

Explanation:

4 0
3 years ago
Why the location and quality of food sources in the soil are sometimes likely to stimulate random movements by C. Elegans, but a
Kipish [7]

Answer:

The Caenorhabditis elegans dauer state is a hibernation-like state of diapause that displays a dramatic reduction in spontaneous locomotion.

Explanation:

Mutations affecting the neurotransmitter dopamine, which regulates voluntary movement in many organisms, can stimulate movement in dauers. The movement of quiescent animals is stimulated by conditions that reduce dopamine signaling and also by conditions predicted to increase dopamine signaling.The stimulation of movement by increased dopamine is much more pronounced in quiescent daf-2(−) dauer and dauer-like adult animals.

In C. elegans hermaphrodites, dopamine is produced by eight neurons and signals via at least four dopamine receptors, DOP-1 through DOP-4. In addition, a presynaptic reuptake transporter, DAT-1, removes dopamine from the extracellular space to terminate signaling. In C. elegans, dopamine is best known for mediating the “basal slowing response” in which the animal's movement slows when it encounters food..  Dopamine is thought to be released in response to food and to act on motor neurons to modulate the animal's movement . Animals that cannot produce dopamine fail to slow in response to food and exogenous dopamine slows the movement of animals cultured without food.The response to dopamine in this situation is complex, as the absence of specific dopamine receptors can have either positive or negative effects on movement.

8 0
3 years ago
What is one of the most sophisticated communication systems on the planet?
timama [110]

The <u>nervous system</u> is one of the most sophisticated communication systems on the planet.

<u>Explanation:</u>

The diverse assembly of nerves and specific cells identified as neurons which are responsible for coordinating actions and sensory by sending signals among the various parts of the body, thus collectively understood as the nervous system. By fact it is the electrical circuitry of the body.

The nervous system is systemically composed of two parts: the pivotal nervous system and the peripheral nervous system. Here the pivotal comprises of the brain and spinal cord, although the peripheral constitutes primarily of nerves, which are interconnected strings of long fibers or axons, which link the pivotal to every other part of the organism.

8 0
2 years ago
5. Which statement about the aquaculture industry in the US is true?
Juli2301 [7.4K]

Answer:

A

Explanation:

I am not that sure whether is A

7 0
2 years ago
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