An abiotic factor affecting the behavior and survival of such organisms as robins and violets is the

Correct/valid answer is the lenght of daylight.

Explanation:

Abiotic basically means not living.

So, Populations of rabbits are living. It's defintely not that one.

Herbivores are living. So it's not that one.  

Bacteria are living. So it's not that one.

Daylight is non living. So there's your answer.

Please mark as brainliest, I need just a few more :D

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.