False it does pose a threat to human life
The answer should be trees or flowering plants, would be easier if it were multiple choice . But you have to think , a primary succession is the first one. So the most complex plant would show up last
The correct answer is that mammals use a closed, double loop , four chambered heart as a circulatory system of the body.
The circulatory system of mammals is closed system that consists of four chambers, two articles and two ventricles. The deoxygenated blood comes into the heart from one loop and the oxygenated blood from other loop from the heart is circulated to the whole body. This is called as double circulation.
Answer:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Explanation:
