Every offspring does not look alike they change with the generations
Answer:
Due to exchange of gases i.e. normal and abnormal.
Explanation:
The main difference between incomplete and complete ventilation is the occurrence of normal and abnormal exchange of gases. The mechanism in which the exchange of gas happens completely without any difficulty is called complete ventilation. It is the process in which the required amount of oxygen is inhaled or inspired and appropriate amount of carbon dioxide is exhaled out of the body while on the other hand, incomplete ventilation is a mechanism in which exchange of gases is not normal.
ANSWER: 8.9
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Answer:
nervous system
Explanation:
The nervous system is also a fight-flight system...meaning the reflexes are in work to either fight or fly away.Hope it helps:)
Although algae can photosynthesize, they lack other defining characteristics of plants such as true roots, stems and leaves, so they are not part of the plant kingdom.
