Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.
I just found this on google
The plants can grow with out being disturbed by the pests and it doubles the harvest also when the plants produce seeds the seeds will contain the pest-resistant genes so you can grow more plants that contain it<span />
B. Thick Atmosphere
Let me know how it goes!
Answer:
A living organism's position in the flow of energy through an ecosystem.
i believe the answer is "A fundamental role". hope this helps.
