Which of these statements about multi-celled organisms are true? (Select all that apply.) Each of their cells can carry out all necessary life activities for that organism.
Most of their cells have unique roles.
Their cells vary in size and shape.
Their cells are larger than the cells of one-celled organisms.

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

What is the 77 element on the periodtic table