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Alika [10]
3 years ago
15

What is the ultimate source of energy for all ecosystems?

Biology
2 answers:
timofeeve [1]3 years ago
6 0
The answer is B. The sun
Y_Kistochka [10]3 years ago
3 0
The correct answer is B. the sun
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Explain how scientists use recombinant DNA technology to produce the drug insulin. Be sure to also explain why a gene form one o
vlabodo [156]

A recombinant DNA is artificially constructed DNA molecule with genes of interest that would not be present in the genome otherwise. It is a combination of a vector and a gene of interest. The recombinant DNA is inserted into bacteria E. coli, which, thanks to their reproductive potential, produce multiple copies of this recombinant DNA along with the chromosomal DNA. So, the gene for insulin is inserted int bacteria where is transcribed together with bacterial genes and the great amount of insulin is produced.

6 0
4 years ago
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What do you think would happen if negative feedback mechanism absent in our body?<br>​
Darina [25.2K]

Answer:

Negative feedback has the function of controlling and regulating the processes of a system. Without such a mechanism there would be no balance in the body. As such, it is responsible for maintaining balance within the system, counteracting or modifying the consequences of certain actions, that is, it seeks to reduce the effects of external aggressions.

Explanation:

When an internal or external variable of the body changes with respect to normal limits, a response is triggered that reverses the change. In this case, we are in the presence of a negative feedback. In negative feedback there are normally three parties involved: the so-called receptor, the control center, and the so-called effector. The receptor is the organ or tissue that intervenes in the negative feedback process, recording the values of some variable of the organism; these variables can be very different, for example temperature, blood pressure or blood glucose concentration. The information collected by the receiver is continuously sent to the control center. When the received values go out of the normal ranges, the control center will send orders to the effector organs so that they begin to function in a certain way that helps to return the values of the variable to the normal values in basal state.Negative feedback is the main control mechanism of homeostasis and as such is essential to keep the different parameters of the body between the values in which it can perform its functions. If negative feedback didn't exist, we would die. In fact, when negative feedback control mechanisms fail, we have to resort to medicine to help the body maintain homeostasis.

8 0
3 years ago
Which of these forces exist between earth and moon?
siniylev [52]
Between Earth and Moon there is a gravitational force that exists.
7 0
4 years ago
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When a oligopoly exists, how many producers dominate the market
balandron [24]
In an oligopoly type of market, there are only few producers whom dominate the market. This is the market type wherein there are only small number of firms that control the majority of the market share. The opposite to Perfect Competition, wherein there are unlimited number of producers. In an oligopoly, since there are only a few numbers competitors, each firm is likely to be aware of each other's action.
7 0
4 years ago
Are we running out of clean water? And why, explain. ​
amm1812

Answer:

well were not running out but not every place has clean water and no we never run out of clean water. theres always clean water

Explanation:

8 0
3 years ago
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