Does crossing over happen in meiosis

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Explain why the plants cortex would serve as the best food source for animals