'colored feathers that camouflage birds from predators are found in the majority of the current bird population' would be correct since that would only focus on one species instead of many, natural selection includes all species, not just one.
Survival??
That’s a complete guess
By asking it
Sinply ask
Thats why we were given a mouth
To use it
Or be built different
Answer:
Option-C
Explanation:
A pulse-chase experiment which is used to study the cellular process taking place in the cells. This uses the labelled molecule which is incorporated into the cellular pathway and then the unlabeled molecules are used over time to determine how much time is required by the unlabeled molecule to replace the labelled molecule.
In the given question, the pancreatic cell which secretes the digestive enzyme known as the acinar cell is labelled with the leucine and then used unlabeled leucine.
When observed after three hours, the black spots will appear on the exterior of the cell as the protein has been synthesised by the ER and now has been secreted from the cell.
Thus, Option-C is the correct answer.