Bees and other insects are attracted on purpose by what?
Options:
- (A) colors
- (B) orchids
- (C) human food
- (D) chemicals
- (E) flowers
- (F) humans
- (G) pollen
- (H) perfume
--
Let's think first: Flowers attract animal pollinators. Insects are the most common animal pollinators, and bees are the most common insect pollinators. Flowers attract bees and other insects.... So the answer is [(E)]

What does a diaphragm help a dolphin do?
Options:
- (A) swimming
- (B) rest
- (C) stay warm
- (D) smell
- (E) see
- (F) breathe
- (G) eat
- (H) survive
--
Let's think first: Mammals breathe with the help of a diaphragm. Common dolphins are mammals. Dolphins breathe with the help of a diaphragm.... So the answer is [(F)]

Plants live just about everywhere within our planet's what?
Options:
- (A) crust
- (B) solar system
- (C) state
- (D) the environment
- (E) atmosphere
- (F) moon
- (G) solar energy
- (H) vegetation
--
Let's think first: Plants live just about everywhere on Earth. Air is everywhere in the earth's atmosphere. Plants live just about everywhere within the atmosphere.... So the answer is [(E)]

What is part of an animal's excretory system?
Options:
- (A) alveoli
- (B) garbage chute
- (C) pollen
- (D) glucose
- (E) bloodstream
- (F) kidneys
- (G) food
- (H) intake
--
Let's think first: Organs of excretion make up the excretory system. Leptospiral organisms cause infection in the kidneys and are excreted in urine. Kidneys are part of the excretory system.... So the answer is [(F)]

Viruses cannot do what by themselves?
Options:
- (A) make people sick
- (B) survive
- (C) dangerous
- (D) interact with cells
- (E) migrate
- (F) kill them
- (G) cause a viral infection
- (H) multiply
--
Let's think first: Viruses cannot reproduce by themselves. Passwords multiply and reproduce amongst themselves. Viruses cannot multiply by themselves.... So the answer is [(H)]

Salt in the water is something that must be adapted to by organisms who live in:
Options:
- (A) evaporation
- (B) environment
- (C) rivers
- (D) bioaerosols
- (E) our planet
- (F) Deposition
- (G) estuaries
- (H) deserts
--
Let's think first: Organisms that live in marine biomes must be adapted to the salt in the water. Estuaries display characteristics of both marine and freshwater biomes. Organisms that live in estuaries must be adapted to the salt in the water.... So the answer is [(G)]