Answer:
d.organisms from the past
Explanation:
Fossils document the existence of now-extinct species, showing that different organisms have lived on Earth during different periods of the planet's history. They can also help scientists reconstruct the evolutionary histories of present-day species.
Answer:
we have two kidneys is so that there is some extra reserve of kidney mass in case we sustain some renal insult .The kidney is made up of nephrons, whose job is to filter, secrete and reabsorb solutes and water. More kidney mass = more nephrons.
Explanation:
Answer:
The correct option is A.
Explanation:
The number of bacteria in an experiment can be represented by an exponential function
where, x represents the number of hours.
We need to find the value of x when f(x)=64.
Substitute f(x)=64 in the given function.
It can be rewritten as
On comparing both sides by get
The value of x is 3.
Since f(3)=64 it means the population of bacteria is 64 in 3rd hour.
Therefore the correct option is A.
Aminoacyl-tRNA synthetase is an enzyme whose function is to synthesize charged tRNA, specific tRNA biding to specific amino acid such as Met-tRNA(AUG).
Because it can eat primary consumers and secondary consumers both. Veggie eaters and meat eaters
