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frutty [35]
3 years ago
12

Easy asnwer get brainlest

Biology
2 answers:
Digiron [165]3 years ago
8 0

Answer:

4!

Explanation:

astraxan [27]3 years ago
7 0

Answer:

the last one

Explanation:

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Which two body systems interact to expel the waste product carbon dioxide
Pani-rosa [81]

Answer:

excretory system  and circulatory system

Explanation:

Blood is  part of circulatory system and as it move through various organs it exchanges the gases i.e give oxygen to the cell and take carbon dioxide from them. After taking CO2, the  blood becomes impure and hence it passes through the kidney before going to the heart. Kidney is part of excretory system which removes carbon dioxide from blood and thus purifies it.  

7 0
3 years ago
Write a paragraph or two to explain why there is little change in the pH of battery acid when it is diluted with water
3241004551 [841]
Battery acid is acidic in nature so its pH will be more.if we add a base its acidity level decreases and it becomes a poor acid. here water acts as a base to decrease the pH value and acidic nature of a acid substance that is battery acid.
8 0
4 years ago
In the 1940s, proteins were thought to be the more likely molecules to house genetic information. what was the primary reason th
dem82 [27]
DNA was found to contain only four different chemical building blocks. 
4 0
3 years ago
A key objective in this chapter is to identify the major enzymes in the digestion of carbohydrates, proteins, and fats as well a
Pani-rosa [81]

Answer:

<h2>Gastrin: stomach, </h2><h2> CCK- SI, </h2><h2> Insulin- pancreas, </h2><h2>Glucagon-pancreas.  etc</h2>

Explanation:

1.  Gastrin:  secreted by stomach stimulating activity of the stomach ,

2. CCK: secreted by SI stimulating secretion of pancreatic enzymes; contraction of gallbladder and pyloric sphincter and inhibitory effects on stomach

3. Secretin:  secreted by SI if material entering SI is acidic, triggering secretion of HCO₃-

.

4. Insulin: produced by beta-cells of pancreas and

stimulates storage of glucose in liver and muscle and it causes re-uptake of glucose when blood-sugar is high, lowering blood sugar

5. Glucagon- produced by alpha-cells of pancreas and

it stimulates release of glucose from liver when blood-sugar is low, and results in raising blood sugar.

6 0
3 years ago
Which is more appropriate?
Thepotemich [5.8K]

Answer:

A

Explanation:

The The one that is appropriate is A because phytoplankton to fish is like the bacteria that is on the bottom of the floor in the water and the fish could eat that phytoplankton and then your shark and whale could eat the fish and get the phytoplankton so your answer is A

6 0
4 years ago
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