Methane, answer choice d, is correct.
Answer: 1. all cacti in the same area
Explanation: All saguaro cacti in the desert is considered a population because population is the number of organisms of the same specie that exist and live together in a particular geographic region at the same time, and also have the capability to interbreed within themselves.
Answer:
the abiogenesis theory helps us understand
Explanation:
<span>The evolution of a long neck in giraffes is an example of natural selection in that the giraffes with long necks would be able to eat more leaves from higher trees and thus be more successful.</span>
A neutron is one of the three subatomic particles, between electrons and protons it has no charge since it is neutral.
