Answer:
I would say B. digestive system.
Explanation:
The digestive system breaks down food and processes it into energy molecules that the body of an organism can use.
Hope this helps! :)
Answer:
B
Explanation:
Crossing over is the process involved during meiosis of two chromosomes sharing genetic information with each other from each parent. This happens so the two daughter cells or sister chromatids have a variety of genetic information and so they are not completely identical. This leads to genetic diversity or variation.
