[[Ques]]: Where is ecosystem complexitiy generally least?
Options:
- (A) humans disturb it
- (B) frontal zones
- (C) in lakes
- (D) at the ocean
- (E) our planet
- (F) at the poles
- (G) mouth of rivers
- (H) at the equator
[[Ans]]: [Biodiversity generally increases from the poles to the equator. Biodiversity contributes to ecosystem complexity. Ecosystem complexity generally increases from the poles to the equator.]
[(F)]

[[Ques]]: P16 is an example of what type of thing that causes cancer when it stops functiong properly?
Options:
- (A) Toxins
- (B) edema
- (C) gene
- (D) ferns
- (E) CO 2
- (F) PDAs
- (G) HIV
- (H) albino
[[Ans]]: [Cancer is a disease that occurs when the cell cycle is no longer regulated. P16 is a regulator of the cell division cycle. Cancer is a disease that occurs when genes like P16 stop functioning properly.]
[(C)]

[[Ques]]: What are extremely important biomes?
Options:
- (A) important habitats
- (B) urban city
- (C) remains of prehistoric life
- (D) zoos
- (E) water conservation
- (F) Most plants
- (G) manmade aqueducts
- (H) marshes and swamps
[[Ans]]:
[Wetlands are extremely important biomes. Marshes and swamps are wetlands. Marshes and swamps are extremely important biomes.]
[(H)]