The total is now pegged at 11.2 million acres rather than almost 16 million, with yearly average losses of 2.2 million acres instead of 3.2 million.
Answer: External intercoastal muscles increase the size of thorasic cavity during inhalation.
Explanation:
Inhalation is the process of breathing in oxygen.
During inhalation, diaphragm contracts and it lead to the expansion of lung volume. When diaphragm contracts, it moves to the abdominal cavity which create a large thorasic cavity . when the external intercoastal muscles contracts, it cause toward and downward movement of the ribs, which cause the rib cage to expand , thereby leading to increase in size of thorasic cavity.
Meiosis. Sexual recombination. Crossing over. Independent assortment. Mutations.
The two MAIN sources would be genetic(sexual) recombination and mutations. Mutations allow for genetic variation, while genetic recombination allows for genetic shuffling. :)
Viruses are considered to be nonliving.
lol. whats when whole thing