This flowering plant does not wilt but stands straight up, reaching toward the sunlight, because its cells contain mostly a) air. b) water. c) oxygen. d) carbon dioxide.

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

What was the land like over 500 million years ago? what was under the sea?

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule