HELP Put the organisms in order of size and complexity, starting with the smallest and simplest and progressing to the largest and most complex.

prokaryote (bacteria, no nucleus)

eukaryotic cell (has nucleus)

protein

virus (NOT alive)

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions? a. binary fission b. fusion c. differentiation d. meiosis