What does a diaphragm help a dolphin do?
Options:
- (A) swimming
- (B) rest
- (C) stay warm
- (D) smell
- (E) see
- (F) breathe
- (G) eat
- (H) survive
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Let's think first: Mammals breathe with the help of a diaphragm. Common dolphins are mammals. Dolphins breathe with the help of a diaphragm.... So the answer is [(F)]

Where does human fertilization naturally take place?
Options:
- (A) hard shelled egg
- (B) petri dish
- (C) bushes
- (D) man
- (E) Earth
- (F) eggs
- (G) woman
- (H) orchids
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Let's think first: Fertilization takes place inside the female organism. Fatty tissue in a woman's body produces female hormones. Fertilization takes place inside a woman.... So the answer is [(G)]

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)]

What do mussels eat?
Options:
- (A) bivalves
- (B) sub-units of species
- (C) Something coming from a gland
- (D) mussels
- (E) plankton and nonliving organic
- (F) Something made from fermented ricce
- (G) mollusks
- (H) Microscopic organisms
--
Let's think first: Bivalves feed on plankton and nonliving organic matter. Mussels are bivalve mollusks. Mussels eat plankton and nonliving organic matter.... So the answer is [(E)]

What happens when there are random changes in the genetic information of an organism?
Options:
- (A) New genetic variation
- (B) Cancer
- (C) cause people to become sick.
- (D) deadly and devastating
- (E) Identical twins
- (F) Random diseases
- (G) death and devastation
- (H) a tree falling
--
Let's think first: Mutation creates new genetic variation in a gene pool. Mutations Mutations are random changes in the genetic information of an organism. Random changes in the genetic information of an organism creates a new genetic variation.... So the answer is [(A)]

Sperm had to swim from what to what reproductive organs for zygotes to occur.
Options:
- (A) barnacles
- (B) male to female
- (C) animals
- (D) ocean water
- (E) male to male
- (F) mouth of rivers
- (G) female to male
- (H) female to female
--
Let's think first: Sperm had to swim from male to female reproductive organs for fertilization. If fertilization occurs, the fertilized eggs are now described as pre-embryos or zygotes. Sperm had to swim from male to female reproductive organs for zygotes to occur.... So the answer is [(B)]