Answer: Cross Pollination
Explanation: In his study of pea plants, Gregor Mendel used Cross-pollination method to produce offspring.Therefore the answer is b.cross-pollination, by using parents that had different traits.
It is crucial to avoid air bubbles in the assembled potometer. The plant stem must be cut under water to prevent airlocks forming in the xylem. All fittings must be tight so that the only way the apparatus can lose water is by the plant transpiring.
I had just learned this! The answer is D.
After a caterpillar eats a leaf, it can convert the chemical energy into mechanical energy to help it build a cocoon.
