Biodiversity generally increases from the poles to the area where what is found?
Options:
- (A) animals
- (B) Fjords
- (C) Most plants
- (D) Icebergs
- (E) Rainforests
- (F) Tundra
- (G) our planet
- (H) Animal survival
--
Let's think first: Biodiversity generally increases from the poles to the equator. Most rainforests lie near the equator. Biodiversity generally increases from the poles to the area where the rainforests lie.... So the answer is [(E)]

How do ost frogs breathe as tadpoles?
Options:
- (A) gills
- (B) sucking in air
- (C) oxygen
- (D) lungs
- (E) ligt
- (F) nektar
- (G) skin
- (H) ovaries
--
Let's think first: Most amphibians breathe with gills as larvae and with lungs as adults. Frogs are the most durable of the amphibians. Most frogs breathe with gills as larvae and with lungs as adults.... So the answer is [(A)]

What is the speed of the change in the characteristics of living things over time?
Options:
- (A) Jet speed.
- (B) Speed of light.
- (C) long
- (D) Slow.
- (E) Mach speeds.
- (F) slows
- (G) speed
- (H) years
--
Let's think first: Evolution is a change in the characteristics of living things over time. Biological evolution is slow, while corporate evolution is fast. The change in the characteristics of living things over time is slow.... So the answer is [(D)]