Why are chimpanzees classified as chordata?

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

Can yall plz me on this question im having a hard time think about it