Are endocytosis and exocytosis forms of passive or active transport

a scientist observing an onion cells and a human cheek under a microscope which observation does she most likely take

If you have 200 grams of a radioactive sample, how many grams would be left after three half-lives? a. 200 b. 150 c. 50 d. 25

Which process produces a greater number of offspring? chromosome duplication asexual reproduction gamete formation sexual reproduction

Which of the following is an example of an organism's niche? A. A dog chasing its tail B. A bird fell out of its nest C. The little boy is late for school D. The early bird gets the worm

A chemical reaction is the only way to separate an? element pure substance mixture solution Mark this and reti

The interdependence of body systems is essential because A. very few processes are controlled by hormones. B. all systems work together to maintain homeostasis. C. each system doesn't rely on the others to work. D.

Does Insertion mutation alter protein function? Possible answers: It does, it won't, or it may or may not

Which sphere is home to the largest portion of animal life on earth

In a particular breed of cattle, the trait of not having horns (Pp) is dominant over having horns (pp). The Punnett square below shows a cross between parents with Pp and pp genotype. What percentage of offspring will be without horns? A. 0% B.

In a pond ecosystem, what generally happen over a long period of time? A) The pond will fill in, grasses and trees will grow there B) It will become deeper than a lake. C) The water will become stagnant and everything in the pond will die.