epithelial layers contain no blood vessels, so they must receive nourishment via diffusion of substances from the underlying connective tissue , through the basement membrane.
Answer:
speech
Explanation:
humans and chimpanzees are different mainly on the significant difference on being able to use speech by humans and not used by chimpanzees. Moreover, humans have such a powerful brain and which provides logics that enable them to carry out more works than any other of their species.
Diploid saprophytic generation with haploid gametophytic generation.
Crossing over is done in Pachytene stage of meiosis 1 !!
