Which type of secretion involves the loss of apical cytoplasm?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.

What advantages does a pedigree have over a written passage?