Why are virus able to recognize a host cell, enter its membrane and take over

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

What element is able to combine with itself and hydrogen to form large molecules ?

Based on the body structures of these animals, which two conclusions are scientifically the skeletal structure of the gorilla and chimpanzee suggest a common evolutionary ancestry. the dog and frog share a closer evolutionary ancestry than the gorilla and chimpanzee. the dog is more closely related to the frog than it is to the chimpanzee. all four organisms share a common vertebrate ancestor.