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Nadya [2.5K]
3 years ago
15

2. Why do Earth's tectonic plates move?

Biology
1 answer:
Lena [83]3 years ago
4 0

Answer:

D. They float on convection currents in the mantle.

Explanation:

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Check all that are characteristics of the esophagus. Check All That Apply
kvv77 [185]

Answer:

Option (A) and (D).

Explanation:

Esophagus may be defined the long tube like structure that connect the throat with the stomach. The partially digested food from the buccal cavity to the stomach is pass down through the esophagus.

The mucosa of the esophagus contains the thick layer of the nonkeratinized squamnous epithelium. The smooth muscles are present in some layers only. The two layer of the muscle that are superior to the one third of the muscularis are the skeletal muscle.

Thus, the correct answer is option (A) and (D).

6 0
3 years ago
Why do proteins not pass through plasma membranes
Andreas93 [3]

Answer:

because protein molecules are very large in molar masses

3 0
3 years ago
What is the characteristic of the gastrula stage of embryo development?Select one of the options below as your answer: A. Format
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7 0
3 years ago
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Where does the po32– come from that circulates due to upwelling? select all that apply.
IRISSAK [1]

Answer: a. dead organisms from the marine food web.

c. liberation through ATP hydrolysis in living organisms.

Upwelling is a wind driven motion of lower bottom nutrient rich and warmer water on the surface of the water body. This wind driven motion facilitates the movement of nutrients available for growth of primary producers like phytoplanktons growing on the surface of water body. The dead organisms from the marine food web get decomposed and the organic matter obtain after decomposition is a rich source of phosphorous. This phosphorous gets transferred to the upper layers of the water body by upwelling.  In aquatic organisms ATP hydrolysis occurs which is a catabolic process that uses water to split the bonds present in the ATP molecule and hence, releases energy for functions performed by them along with a release in phosphate atom. This phosphate gets mixed with the water. Therefore, PO32 come from dead organisms from the marine food web and liberation through ATP hydrolysis in living organisms that circulates due to upwelling.  

6 0
3 years ago
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Heterotrophs take in mass in the form of food. Food is either used to build molecules within the body or as fuel for cellular re
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Cellular respiration takes glucose and oxygen and converts it into carbon dioxide, water and ATP (energy).
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