Flower spores eventually develop into an entity that is:
Options:
- (A) sperm
- (B) fertile
- (C) mammalian
- (D) ferns
- (E) fungi
- (F) development
- (G) haploid
- (H) plants
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Let's think first: Flowers produce spores that develop into gametophytes. All gametophytes are haploid. Flowers produce spores that develop into haploid entities.... So the answer is [(G)]

Vesicle transport is a form of _.
Options:
- (A) diffusion
- (B) animals
- (C) communication
- (D) movement
- (E) direct energy
- (F) resistance
- (G) Vibrations.
- (H) motion
--
Let's think first: Vesicle transport requires energy, so it is also a form of active transport. Active transport is another form of diffusion. Vesicle transport is a form of diffusion.... So the answer is [(A)]

What do mollusks have?
Options:
- (A) aerobic capacity
- (B) Energy
- (C) gastropod shells
- (D) Chemical energy
- (E) a cuticle
- (F) kinetic energy
- (G) soft bodies
- (H) alveoli
--
Let's think first: Mollusks are invertebrates such as the common snail. Mollusks are soft-bodied invertebrates. Mollusks, like the snail, are soft-bodied.... So the answer is [(G)]

Which of the following has the most complex nervous system?
Options:
- (A) animals
- (B) nerves
- (C) fur seals
- (D) humans
- (E) elephants
- (F) Jellyfish
- (G) bears
- (H) kalenchoes
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Let's think first: Most invertebrates have a more complex nervous system. Jellyfish and insects are invertebrates. Jellyfish have a more complex nervous system.... So the answer is [(F)]

Changing the structure of a chromosome can be what to an organsim?
Options:
- (A) massive damage
- (B) mechanical
- (C) beneficial
- (D) harm them
- (E) negative
- (F) dangerous
- (G) homogenous
- (H) Damages them
--
Let's think first: Mutations may change the structure of a chromosome or just change a single nucleotide. Most mutations are beneficial to the organism. Changing the structure of a chromosome can be beneficial to the organism.... So the answer is [(C)]

What do earthworms ingest in order to form and enrich soil?
Options:
- (A) segmented
- (B) vegetation
- (C) sediment
- (D) bacteria
- (E) Chlorophyll
- (F) sandworm
- (G) crawling
- (H) dirt
--
Let's think first: Earthworms are important deposit feeders that help form and enrich soil. Deposit feeders ingest sediment and then extract the food. Earthworms ingest sediment to then help form and enrich soil.... So the answer is [(C)]