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)]

What body part would be attached to the external framework?
Options:
- (A) heart
- (B) insects
- (C) respiratory system
- (D) wings
- (E) humans
- (F) Tail
- (G) fat
- (H) digestive system
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Let's think first: Wings are part of the exoskeleton and attached to the thorax. An exoskeleton is an external framework. Wings are part of the external framework.... So the answer is [(D)]

When gardening what can be depleted of nutrients?
Options:
- (A) fertilizer
- (B) bacteria
- (C) the plant
- (D) coal
- (E) pine
- (F) the dirt
- (G) Acids
- (H) water
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Let's think first: Soil can be depleted of nutrients. Dirt is really misplaced soil. Dirt can be depleted of nutrients.... So the answer is [(F)]

What is absorbed from the blood when someone uses the hormone or a medicine containing insulin?
Options:
- (A) red blood cells
- (B) Energy
- (C) glucose
- (D) sodium
- (E) oxygen
- (F) heat
- (G) lmestone
- (H) Energy.
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Let's think first: Insulin is a hormone that helps cells absorb sugar from the blood. Blood Sugar Glucose is sugar. Insulin is a hormone that helps cells absorb glucose from the blood.... So the answer is [(C)]

What involves a sperm and egg fusing to form a diploid zygote?
Options:
- (A) Leptospirosis
- (B) produce offspring
- (C) allow growth
- (D) sexual reproduction
- (E) metabolic reaction
- (F) peachleaf willow
- (G) rapid expansion
- (H) Plant reproduction
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Let's think first: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Sexual reproduction requires formation of gametes, followed by fertilization. Sexual reproduction involves a sperm and egg fusing to form a diploid zygote.... So the answer is [(D)]

What do animals use for energy storage?
Options:
- (A) photosynthesis
- (B) sweating
- (C) vitamin C
- (D) batteries
- (E) methane
- (F) glucose
- (G) sugar
- (H) lipids
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Let's think first: Organisms use lipids to store energy. Plants and animals are organisms. Animals use lipids to store energy.... So the answer is [(H)]