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)]


Where is ecosystem complexitiy generally least?
Options:
- (A) humans disturb it
- (B) frontal zones
- (C) in lakes
- (D) at the ocean
- (E) our planet
- (F) at the poles
- (G) mouth of rivers
- (H) at the equator
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Let's think first: Biodiversity generally increases from the poles to the equator. Biodiversity contributes to ecosystem complexity. Ecosystem complexity generally increases from the poles to the equator.... So the answer is [(F)]


Most of the food consumed by people worldwide comes from
Options:
- (A) humans
- (B) trees
- (C) Energy
- (D) animals
- (E) plants
- (F) vitamin C
- (G) honeybees
- (H) Earth
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Let's think first: Grasses supply most of the food consumed by people worldwide. Grasses are very distinctive plants. Plants supply most of the food consumed by people worldwide.... So the answer is [(E)]


What has a circulatory system with a two-chambered heart?
Options:
- (A) sharks
- (B) insects
- (C) salmon
- (D) animals
- (E) barnacles
- (F) mammals
- (G) tortoises
- (H) alpacas
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Let's think first: Fish have a circulatory system with a two-chambered heart. Fish include bass and salmon. Salmon have a circulatory system with a two-chambered heart.... So the answer is [(C)]


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)]


Plant growth, biodiversity, and adaptations of land organisms is influenced by:
Options:
- (A) sun's heat
- (B) fossils
- (C) Greenhouse gasses
- (D) animals
- (E) global warming
- (F) the environment
- (G) Darwin
- (H) Greenhouse gases
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Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think first: Climate influences plant growth, biodiversity, and adaptations of land organisms. Global warming is a part of climate change. Global warming influences plant growth, biodiversity, and adaptations of land organisms.... So the answer is [(E)]