What has a special excretory structure?
Options:
- (A) Silk plants.
- (B) Insects.
- (C) a fish
- (D) animals
- (E) plants
- (F) Architecture structures.
- (G) barnacles
- (H) Corset structure.
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Let's think first: Some arthropods have special excretory structures. All insects are arthropods. Insects have special excretory structures.... So the answer is [(B)]

What contains an abundance of deoxyribonucleic acid and not much else?
Options:
- (A) Conifers
- (B) PDAs
- (C) pollen
- (D) anemia
- (E) bacteria
- (F) proteins
- (G) diseases
- (H) viruses
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Let's think first: Viruses contain DNA but not much else. DNA is short for Deoxyribonucleic Acid. Viruses contain deoxyribonucleic acid but not much else.... So the answer is [(H)]

What are vascular plants that produce seeds in the form of cones?
Options:
- (A) Leptospirosis
- (B) more abundant
- (C) Newton
- (D) it needs them
- (E) Conifers
- (F) epidermal
- (G) evergreens
- (H) white
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Let's think first: Gymnosperms are vascular plants that produce seeds in cones. Gymnosperms are the plants that are known as evergreens. Evergreens are vascular plants that produce seeds in cones.... So the answer is [(G)]

What would a person do that would reduce their body heat?
Options:
- (A) using steel
- (B) Exfoliation
- (C) Evaporation
- (D) drink a warm drink
- (E) burning coal
- (F) perspire
- (G) exercise outside
- (H) take a nap
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Let's think first: Sweating reduces body heat. People of all ages and activity levels perspire or sweat. Perspiration reduces body heat.... So the answer is [(F)]

Polyps do not use:
Options:
- (A) visible energy
- (B) an organism's body
- (C) gamete fusion
- (D) Pesticides
- (E) Electrical energy
- (F) heat or cold
- (G) harmful substances
- (H) heat energy
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Let's think first: Polyps usually reproduce asexually. Plants with Asexual Reproduction Plants with asexual reproduction have no gamete fusion. Polyps do not use gamete fusion.... So the answer is [(C)]

What lacks a vertebral column, or backbone?
Options:
- (A) fungi
- (B) parasites
- (C) cacti
- (D) Leptospirosis
- (E) insects
- (F) bushes
- (G) Conifers
- (H) anostrans
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Let's think first: Invertebrates are animals that lack a vertebral column, or backbone. Principal invertebrates are anostracans and ostracods. Anostrans lack a vertebral column, or backbone.... So the answer is [(H)]