Which of the following descriptions about the cell membrane is correct? a.) proteins molecules group together in one area b.) cholesterol molecules stick out of the membrane as signals c.) the tails of the phosophipids are attracted to water d.) proteins embedded in the membrane molecules to cross

Explain why the plants cortex would serve as the best food source for animals

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic