Which structure or organelle is found in both prokaryotic and eukaryotic cells?
a) ribosomes
b) chloroplasts
c) mitochondria
d) endoplasmic reticulum

Vegetation that grows along the floors of tropical and temperate forests is called undergrowth. how is the undergrowth of a tropical rain forest most likely to differ from the undergrowth of a temperate forest? a. a tropical rain forest's undergrowth most likely experiences periods of dormancy during colder weather. b. a tropical rain forest's undergrowth most likely experiences periods of dormancy during rainy weather. c. the undergrowth of a tropical rain forest most likely requires less sunlight. d. the undergrowth of a tropical rain forest most likely requires more sunlight.

Abnormal softening of a gland is known as

Are the earth's ocean floor and continents the same age geologically? why or why not?