Organ system is the answer according to me if it is one word question
Answer: frameshift mutation
Explanation: A frameshift mutation is a particular type of mutation that involves either insertion or deletion of extra bases of DNA. Now, what's important here is the number three. The number of bases that are either added or subtracted can't be divisible by three.
Answer:
All of them are correct except for, "they repair carbon dioxide for photosynethesis because they just don't.
Explanation:
They don't
Sinks of carbon dioxide can be farms grasslands or forest
It refers to the cost or benefit of an activity by an economic agent for which it does not pay a price.
Fr ex: factory produces goods , it releases harmful smokes n polluts our enviroment.
In this case externality implies the negetive effect.
Hope it helped u!!