What is larger than ponds?
Options:
- (A) rivers
- (B) deltas
- (C) H 2 O
- (D) loch
- (E) toads
- (F) drop
- (G) puddle
- (H) bird bath
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Let's think first: Lakes are generally bigger and deeper than ponds. Scotland s lochs , including the famous Loch Ness, are glacial lakes. Lochs are bigger and deeper than ponds.... So the answer is [(D)]

Oncogenes promote the division of cells with damaged what?
Options:
- (A) Veins and arteries.
- (B) biological diversity
- (C) Something with a head, thorax, and abdomen
- (D) a hemisphere is tilted away from the sun
- (E) Addition
- (F) Person's genetic fingerprint
- (G) Mathematics division
- (H) Cell phones
--
Let's think first: Oncogenes promote the division of cells with damaged DNA. DNA DNA DNA is a person's genetic fingerprint. Oncogenes promote the division of cells with damaged parts of a person's genetic fingerprint.... So the answer is [(F)]

Which chemical controls sexual development and reproduction in females?
Options:
- (A) acetic acid
- (B) Hemoglobin
- (C) Fructose
- (D) barnacles
- (E) animals
- (F) Estrogen
- (G) Pesticides
- (H) Baby spray
--
Let's think first: Sex hormones are chemical messengers that control sexual development and reproduction. Estrogens are female sex hormones. Estrogen controls sexual development and reproduction in females.... So the answer is [(F)]

Energy that comes from body heat can help with
Options:
- (A) recovery
- (B) commuting
- (C) movement
- (D) cooling
- (E) strength
- (F) stay warm
- (G) health
- (H) motion
--
Let's think first: Evaporation of sweat uses energy, and the energy comes from body heat. When sweat is evaporated into the air, it provides additional cooling. Cooling uses energy, and the energy comes from body heat.... So the answer is [(D)]

What is a source of drinking water?
Options:
- (A) ice expanding in rock openings
- (B) helping to prevent floods
- (C) industrial runoff
- (D) it helps plants in growing
- (E) Water seeping out of a spring
- (F) salt water
- (G) polluted water
- (H) Something with a head, thorax, and abdomen
--
Let's think first: Streams may start with runoff or water seeping out of a spring. Lakes and streams are sources of drinking water. Water seeping out of a spring is a source of drinking water.... So the answer is [(E)]

What animals belong to the largest phylum of invertibrates?
Options:
- (A) plants
- (B) parasites
- (C) octopuses
- (D) tortoises
- (E) eartworms
- (F) insects
- (G) mammals
- (H) animals
--
Let's think first: Arthropods are the largest phylum of invertebrates. Insects are the largest group of arthropods. Insects belong to the largest phylum of invertibrates.... So the answer is [(F)]