Answer:
The correct option is A
Countercurrent multiplication is the process whereby energy is used to generate an osmotic gradient in which water is reabsorbed from the tubular fluid to produced concentrated urine.
Explanation:
Countercurrent multiplication moves sodium chloride from tubular fluid into interstitial space deep within the kidneys. The concurrent multiplication process build up osmotic gradient interstitial fluid in a single effect. Here, sodium chloride is driven by active transport out of the tubular fluid in the thick ascending limb into the interstitial fluid, which becomes hyperosmotic. This result to water moving passively down its concentration gradient out of the tubular fluid in the descending limb into the interstitial space to a point where it attains a state of equilibrium.
Therefore,the correct option is A, where the ions leaves the ascending limb to make water comes out of descending limb.
A group of the same species, living together and breeding is known as option C. Population.
A species is regularly described because the maximum crucial agency of organisms in which any two human beings of the best sexes or mating sorts can produce fertile offspring. Species means a grouping of associated organisms constituting a scientific unit, occupying a very ordinary region in nature and fulfilling its functions in the preferred organic metabolism in the manner particular simplest for that grouping.
A population is tough and fast of comparable objects or sports which are of a hobby for a few query or experiment. A statistical population can be a set of current objects or a hypothetical and probably countless company of objects conceived.
Learn more about species here:-brainly.com/question/1542287
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Disclaimer: your question is incomplete, please see below for the complete question.
A)community
B)kingdom
C) Population
hence, the answer is option C. Population
Answer: Option D) China
Explanation:
From the picture provided, China and USA contributes above 5.000.000 ( In thousands of metric tons) of carbon dioxide emissions.
And since carbon dioxide has been implicated in the emergence of global climate change, both countries are leaders in the emission.
Thus, China is the right option
When glucose is high, cAMP is low; CAP does not bind the lac operator, and RNA polymerase does not bind the lac promoter. CAP is only active when glucose levels are low, which means the cAMP levels are high, and therefore the lac operon can only be transcribed at high rate when glucose is absent. The importance of this is that the bacteria only turns on the lac operon and start using lactose only after they have used up all the preferred energy source which is glucose.
Nonrenewable resources are used commonly and are quickly running out, and it takes longer for us to form more of these.
