The stimuli plants respond to will be found in the environment. Example....plants grow towars the sun.
Answer:
a
Explanation:
Remember, a biotic factors are those that are living (having life in them), while the abiotic factors are not living organisms.
Oxygen is in the category of biotic and it interacts with the atmosphere (space) which is abiotic.
Answer:
Birds are commonly known to eat beetles, and if the birds were wiped out, beetles wouldn't have the need to be the colors that they are. They wouldn't have a reason to hide from birds and could evolve to colors that aren't for camouflage or scaring away.
Explanation: