Any change in allele frequencies in a gene pool is a mutation
Answer is Oxygen!
Plants take in Carbon Dioxide and expel Oxygen!
I hope I helped! ♥
Explanation:
Cephalopods are organisms tha belong to the class Cephalopoda, which is composed by squids, octopus and nautilus.
The options we have are squids, jellyfish and cuttlefish. The two last ones do not belong to the Cephalopoda class, and also do not have the characteristics to be considered one.
Answer:
A.
Hope it helped,
BioTeacher101
B.
Deforestation affects ecosystems on land. there are no forests underwater