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maria [59]
3 years ago
12

Please help Gracias

Biology
2 answers:
taurus [48]3 years ago
5 0

Answer:I think A

Explanation:

Firdavs [7]3 years ago
5 0

Answer:

one year of growth

Explanation:

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After several weeks of feeling apathetic, sad and dissatisfied with his life, Chris has suddenly become extremely cheerful and s
RUDIKE [14]

Answer:

Bipolar Disorder.

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6 0
3 years ago
Human activity has a great impact on the quantity and quality of local water supplies. Humans can try to increase awareness and
kondaur [170]

Answer:so wrong of you some people ACTUALLY need the answer ... the answer is A

Explanation:

3 0
4 years ago
What regulates breathing rate and how does the body sense when to breath?
Marina86 [1]

Answer:

Involuntary respiration is controlled by the respiratory centers of the upper brainstem (sometimes termed the lower brain, along with the cerebellum). This region of the brain controls many involuntary and metabolic functions besides the respiratory system, including certain aspects of cardiovascular function and involuntary muscle movements (in the cerebellum).

Explanation:

The respiratory centers contain chemoreceptors that detect pH levels in the blood and send signals to the respiratory centers of the brain to adjust the ventilation rate to change acidity by increasing or decreasing the removal of carbon dioxide (since carbon dioxide is linked to higher levels of hydrogen ions in blood).

4 0
3 years ago
What acid precipitation and two examples of the negative effects of air pollution.
defon
Any form of precipitation, including rain, snow, hail, fog, or dew, that is high in acid pollutants, especially sulfuric and nitric acid. Acid precipitation has a pH of less than 5.6 (the normal acidity of unpolluted atmospheric water) and is often less than pH 5.0.
Air pollution can kill trees and can cause chronic disease
5 0
3 years ago
Proteins are the main energy source for life on Earth. True or False.
Bezzdna [24]

Answer:

true

Explanation:

8 0
3 years ago
Read 2 more answers
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