A. offspring are genetically identical to their parents
an organism is resistant to a chemical if it has a gene that protects it from the chemical.
Answer:
after nutrients are absorbed during digestion,the excretory system removes faeces through the rectum. these work together to maintain oxygen homeostasis.
The CNS are lined by ependymal cells. Ependymal cells are epithelial cells that monitor the composition of cerebrospinal fluid (CSF)
I don't think that is right !!! .....some planktons can be eaten and it is not release cO2 back in air. so false !
