question... What uses sounds, chemicals and visual cues?
Options:
- (A) bees
- (B) seaweed
- (C) running
- (D) monkeys
- (E) humans
- (F) germs
- (G) athletes
- (H) coral
answer... Animals can communicate with sounds, chemicals, or visual cues. Monkeys are wild animals. Monkeys communicate with sounds, chemicals or visual cues.
The answer is (D)

question... Energy enters what in the form of sunlight or chemical compounds.
Options:
- (A) biomes
- (B) fire
- (C) light
- (D) Energy.
- (E) Energy
- (F) LEDs
- (G) propagate
- (H) photons
answer... Energy enters ecosystems in the form of sunlight or chemical compounds. Biomes are global ecosystems. Energy enters biomes in the form of sunlight or chemical compounds.
The answer is (A)

question... What uses food for energy?
Options:
- (A) Most plants
- (B) no organisms
- (C) agriculture
- (D) the Moon
- (E) animals
- (F) athletes
- (G) most organisms
- (H) the Sun
answer...
Glucose is used for energy by the cells of most organisms. Food is converted into glucose. Food is used for energy by most organisms.
The answer is (G)