Cacti are adapted to what?
Options:
- (A) the snow
- (B) dry environments
- (C) Animal survival
- (D) survival
- (E) tropical regions
- (F) moist environments
- (G) relocation
- (H) salt and water.
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Let's think first: Plants that are adapted to very dry environments are called xerophytes. Succulents, bromeliads and cacti are xerophytes. A plant that is adapt to a very dry environment is a cacti.... So the answer is [(B)]

An animal's outer shell protects internal organs and:
Options:
- (A) food and shelter
- (B) epidermal
- (C) Epidermis
- (D) all matter
- (E) soft tissues
- (F) alveoli
- (G) warmth
- (H) layers of fat
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Let's think first: Bone provides protection for soft tissues and internal organs. Bones provide an outer shell to protect our internal organs. Soft tissues and internal organs need an outer shell for protection.... So the answer is [(E)]

What do animals do in the winter?
Options:
- (A) Release energy
- (B) running and lifting
- (C) it keeps an organism warm
- (D) adapt to warm weather
- (E) adapt to extreme heat
- (F) adapt to coolness
- (G) shed fur
- (H) by making heat
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Let's think first: Animals adapt to cold temperatures. Temperatures are moderate in summer and COLD in winter. Animals adapt to the coolness in the winter.... So the answer is [(F)]

What organism can adapt to cold temperatures?
Options:
- (A) insects
- (B) a fish
- (C) sensory neurons
- (D) sweating
- (E) Sasquatches
- (F) peachleaf willow
- (G) athletes
- (H) protect them
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Let's think first: Animals adapt to cold temperatures. Sasquatches are obviously Earth-type animals. Sasquatches adapt to cold temperatures.... So the answer is [(E)]

How is survival ensured around hydrothermal vents?
Options:
- (A) heat produced
- (B) Eating a lot
- (C) Reproducing quickly
- (D) biological diversity
- (E) vegetation
- (F) Being in a cluster
- (G) Staying far apart
- (H) hydrate their cells
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Let's think first: Organisms cluster around hydrothermal vents in the ocean floor. To survive, some organisms living near hydrothermal vents have formed close associations. Clusters form around hydrothermal vents to ensure survival.... So the answer is [(F)]

Energy is passed up the food chain or web from producers to whom?
Options:
- (A) animals
- (B) plants
- (C) glucose
- (D) our planet
- (E) chloroplasts
- (F) consumers
- (G) photosynthesizers
- (H) people
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Let's think first: Energy is passed up a food chain or web from lower to higher trophic levels. Animals which are consumers constitute higher trophic levels. Energy is passed up a food chain or web from producers to consumers.... So the answer is [(F)]