What is a main component of a virus?
Options:
- (A) Something that causes allergies
- (B) Leptospirosis
- (C) Localized damage
- (D) heat produced
- (E) deoxyribonucleic acid
- (F) Chemical energy
- (G) direct damage to the lungs
- (H) It helps them survive
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Let's think first: Viruses contain DNA but not much else. DNA DNA is deoxyribonucleic acid. Viruses contain deosyribonucleic acid, but not much else.... So the answer is [(E)]

Evaporation of sweat uses what from the body?
Options:
- (A) expelled
- (B) Positive charges
- (C) all liquids
- (D) properties
- (E) Something to move
- (F) water vapor
- (G) kinetic energy
- (H) Cooling vapors
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Let's think first: Evaporation of sweat uses energy, and the energy comes from body heat. Kinetic energy comes from heat. Evaporation of sweat uses kinetic energy from the body.... So the answer is [(G)]

Roundworms reproduce using meiosis and what?
Options:
- (A) karyogamy
- (B) pollen
- (C) survive
- (D) reproduce
- (E) allow growth
- (F) Energy
- (G) Leptospirosis
- (H) seeds
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Let's think first: Roundworms reproduce sexually. Sexual reproduction involves karyogamy and meiosis. Roundworms reproduce using karyogamy and meiosis.... So the answer is [(A)]

Hummingbirds are what they are today as a necessary consequence of their relationship to what?
Options:
- (A) a feeder
- (B) humans
- (C) bees
- (D) survival
- (E) animals
- (F) Plants
- (G) Earth
- (H) weeds
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Let's think first: Some birds are pollinators that co-evolved with plants. Hummingbirds are the most common bird pollinators. Hummingbirds co-evolved with plants.... So the answer is [(F)]

What kind of animals conserve energy with their hair or fur?
Options:
- (A) fur
- (B) bears
- (C) mammals
- (D) sweating
- (E) frogs
- (F) cactus
- (G) goats
- (H) humans
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Let's think first: Mammals conserve body heat with their hair or fur. Basically, heat is energy. Mammals conserve energy with their hair or fur.... So the answer is [(C)]

What are the form of the genetic material of a cell during mitosis?
Options:
- (A) chromosomes
- (B) graptolites
- (C) fur and fat
- (D) peachleaf willow
- (E) pollen
- (F) Leptospirosis
- (G) animals
- (H) it can be seen
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Let's think first: Chromosomes are the form of the genetic material of a cell during cell division. Mitosis is cell division. Chromosomes are the form of the genetic material of a cell during mitosis.... So the answer is [(A)]