1) appearance of beard and moustache
2) broadening of chest and shoulders
3) changing of voice into a more grave one
Answer:
an adaptation can be defined as an inherited trait which confers an evolutionary advantage to the organism in a certain environment
Explanation:
An adaptation, also known as an evolutionary adaptation, can be defined as any physiological and/or morphological inherited trait related to the improved evolutionary fitness of one organism in a particular environment. An adaptation improves the chances of survival and reproduction in a certain environment, thereby organisms carrying the adaptation have more chances to produce descendants and pass their genes to the next generation. Some classical examples of evolutionary adaptations include the long necks of giraffes that help them to eat leaves at the top of trees, light bones of flying birds, etc.
Climate changes thats what im guessing .. not too sure though ... sorry
11 atoms hope this helps!
b. trees provide everything in a rain forest ecosystem.
