*answer asap! you! * fill in the blank: the gametophytes of angiosperms have cells with nuclei that have the number of chromosomes.

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

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.