Answer:
The Mid-Atlantic Ridge runs down the center of the Atlantic Ocean. ... The rift valley is 1 to 3 km deep, about the depth and width of the Grand Canyon. In contrast, the East Pacific Rise spreads fast at rates of 6 to 16 cm per year (more than 20 cm per year in the past).
Answer:
Resistance of corn plants to insects.
Explanation:
Sperm have developed a flagellum
Answer:
For question 1 the answer is respiratory, and for question 2 is circulatory
