Members of what kingdom that shed their leaves seasonally each year are called deciduous.
Options:
- (A) Fungi
- (B) Winter
- (C) air cools
- (D) vegetation
- (E) Animalia
- (F) Protista
- (G) epidermal
- (H) Plantae
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Let's think first: Plants that shed their leaves seasonally each year are called deciduous plants. All trees are in the Kingdom Plantae, the plants. Members of the kingdom Plantae that shed their leaves seasonally each year are called deciduous.... So the answer is [(H)]

What is affected by too fast or slow respirations?
Options:
- (A) perspiration
- (B) breathing
- (C) heat energy
- (D) animals
- (E) blood pH
- (F) Most plants
- (G) hyperventilating
- (H) sweating
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Let's think first: Blood pH may become unbalanced if the rate of breathing is too fast or too slow. Slow and fast respirations or long periods without a breath are common in the dying child. Blood pH may become unbalanced if respiration is too fast or too slow.... So the answer is [(E)]

Mammals can also generate little bursts of heat through what?
Options:
- (A) Movement of an air mass
- (B) crackling
- (C) Veins and arteries.
- (D) electromagnetic energy
- (E) house
- (F) fire
- (G) muscle contractions
- (H) aerobic capacity
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Let's think first: Mammals can also generate little bursts of heat by shivering. Shivering causes muscle contractions to warm the body. Mammals can also generate little bursts of heat through muscle contractions.... So the answer is [(G)]

What do xerophytes do to adapt to dry environments?
Options:
- (A) By wind and rain
- (B) The flowers are pollinated
- (C) photosynthesis.
- (D) Transfers energy
- (E) To conserve energy
- (F) alter their physical structure
- (G) thermal insulators
- (H) hydrate their cells
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Let's think first: Plants that are adapted to very dry environments are called xerophytes. Plants that have adapted by altering their physical structure are called xerophytes . Xerophytes change their physical structure to adapt to dry environments.... So the answer is [(F)]

Organisms use what to store energy?
Options:
- (A) food
- (B) skin
- (C) fat
- (D) RNA
- (E) batteries
- (F) CO 2
- (G) bone
- (H) O2
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Let's think first: Organisms use lipids to store energy. Another name for fat is lipid . Organisms use fat to store energy.... So the answer is [(C)]

What passes energy up the food chain to adult vegans?
Options:
- (A) cows
- (B) animals
- (C) Batteries.
- (D) chickens
- (E) Power companies.
- (F) glucose
- (G) Humans.
- (H) Plants.
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Let's think first: Energy is passed up a food chain or web from lower to higher trophic levels. Plants represent the first trophic level. Energy is passed up a food chain from plants.... So the answer is [(H)]