What does not grow through cell division?
Options:
- (A) p53
- (B) AIDS
- (C) host
- (D) DDT
- (E) lung
- (F) HIV
- (G) corn
- (H) HPV
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Let's think first: Populations of viruses do not grow through cell division because they are not cells. Where most viruses are DNA, HIV is an RNA virus. Populations of HIV do not grow through cell division because they are not cells.... So the answer is [(F)]

Flukes, tapeworms, and turbell are
Options:
- (A) major threat to health
- (B) types of flat leeches
- (C) Plant growth is reduced
- (D) types of earthworms
- (E) competing for resources
- (F) types of snakes
- (G) types of flatworms
- (H) parasites
--
Let's think first: Flatworms belong to the phylum Platyhelminthes. Flatworms Flatworms or Platyhelminthes include flukes, tapeworms, and turbellarians. Types of flatworms are flukes, tapeworms, and turbellarians.... So the answer is [(G)]

How do platypus lay eggs?
Options:
- (A) epidermis and dermis
- (B) on a flat plane
- (C) in a tree
- (D) fur and fat
- (E) during the day
- (F) it keeps an organism warm
- (G) in a dug out area
- (H) in the water
--
Let's think first: Platypus females lay their eggs in a burrow. Burrows dug by badgers are also important in many areas. Platypus females lay eggs in a dug out area.... So the answer is [(G)]