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xxMikexx [17]
3 years ago
15

Why don't ecosystems systems exist between fresh and salt water systems?

Biology
1 answer:
enyata [817]3 years ago
6 0

Answer: The transition from salt to fresh water is turbulent, vulnerable, and incredibly bountiful

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Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Mrrafil [7]

Answer:

number 1 answer is 3.

number 2 energy is flowing upwards. ex grasshopper eats the grass, rat or whatever that is eats the grasshopper, and the hawk eats the rat. energy is going up each trophic level.

number 3. if the grass became polluted, then animals would get pollution in their bodies and at some point would die. eventually the grass would die too. primary consumers such as mouse, rabbit, grasshopper/snails would accumulate the most pollution because they directly eat the grass. whatever that is in the grass goes straight into their bodies.

6 0
3 years ago
Prostaglandins: A. stimulate smooth muscle contraction. B. have four-membered rings and are derived from arachidonic acid. C. ar
nevsk [136]

Answer:

The correct answer is option A, that is, stimulate smooth muscle contraction.

Explanation:

A group of lipids and a hormone that plays an essential role in monitoring the process of the formation of blood clots, stimulation of labor, the flow of blood and inflammation is known as prostaglandins. The hormone prostaglandin takes part in various kinds of body functions like the relaxation and contraction of the smooth muscles at the time of childbirth, monitoring blood pressure, dilation and constriction of blood vessels, and produce inflammation at the site of infection or tissue damage.  

Prostaglandins possess five-membered rings and are obtained from the fatty acid, arachidonic acid. At the time of blood vessel injury, thromboxane, that is, a form of prostaglandin enhances the process of blood clot formation so that the injury site gets heal quickly.  

4 0
3 years ago
What occurs after transcription to produce the new protein molecule
kobusy [5.1K]
Protein<span> synthesis </span>occurs<span> in cellular structures called ribosomes , found out-side the nucleus. The process by which genetic information is transferred from the nucleus to the ribosomes is called</span>transcription<span>. During </span>transcription<span>, a strand of ribonucleic acid (RNA) is synthesized.</span>
4 0
3 years ago
Chambers A and B are placed next to each other, but are separated by a film similar to a cell membrane. Chamber A contains 80% c
vodomira [7]

Answer:

b. Some carbon dioxide will move from chamber A to chamber B.

Explanation:

The two chambers are separated from each other by a separator that exhibits the properties of the cell membrane. It means that the separator film is semi-permeable in nature. The concentration of CO2 in the chamber A is 80%. This is relatively higher than its concentration in chamber B (20%). The concentration gradient will drive the passive diffusion of some of the CO2 from chamber A to chamber B so that the concentration becomes equal in both the chambers.

8 0
3 years ago
RNA is used in the process of translation to build proteins. Which of these correctly describes the role of the different types
zmey [24]

Answer:

A, B, E

Explanation:

rRNA is ribosomal RNA

tRNA is transfer/transport RNA, and it brings amino acids to the ribosomes so they can make proteins.

mRNA is messenger RNA

Hope it helps :)

8 0
2 years ago
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