Plant embryos . a. are produced by meiosis of the diploid gametophyte body. b. start haploid but become diploid as they grow. c. are the beginning of the gametophyte stage. d. rely on protection and resources supplied from the maternal plant. e. result from fertilization external to the maternal tissue.

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.

Which structure in the cardiovascular system connect arteries to veins?

An uncomfortable feeling in the ears when descending in an airplane is caused by changes in air pressure on the: a. inner ear b. middle ear c. eardrum d. hammer/anvil