To show he presence of a trait you would need to follow it through multiple generations in a pedigree.
Answer:
Chlorophyll-to trap enough light for photosynthesis
The piano could only be played with 12 fingers, which is rare because humans normally have ten fingers.
The answer is D.
An endothermic reaction involves absorbing heat whereas an exothermic involves releasing heat.
Answer:
The correct answer will be option-C
Explanation:
Mammals are warm-blooded animals that are they need to maintain the internal temperature irrespective of the external temperature at a constant rate or 37° C.
In cold conditions the person exposing the body parts to cold conditions response either by producing heat or conserving the heat in the body.
If a person removes the gloves, then a physiological change leads to the change in the diameter of the blood vessels. The diameter of the blood vessels reduces which reduces the loss of heat from the body as constriction of the blood vessels decreases the surface area to be exposed to cold conditions.
Thus, Option-C is the correct answer.
