Bacteria that has no membrane-bound organelles and eats other organisms for energy The bacteria is
a. a eukaryote.
b. a prokaryote.
c. plant
d. an animal.

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?