[[Ques]]: Bottleneck effect can occur with
Options:
- (A) external migration
- (B) direct damage to the lungs
- (C) Movement of an air mass
- (D) competition
- (E) if humans disturb bears
- (F) competing for resources
- (G) Plant growth is reduced
- (H) Temperature changing
[[Ans]]: [Bottleneck effect occurs when a population suddenly gets much smaller. Population growth is reduced by external migration. Bottleneck effect occurs with external migration.]
[(A)]

[[Ques]]: What can be part of invading a host?
Options:
- (A) It helps them survive
- (B) Something that causes allergies
- (C) Movement of an air mass
- (D) energy of moving objects
- (E) vascular conncectivity
- (F) harmful substances
- (G) Leptospirosis
- (H) competing for resources
[[Ans]]: [Fungi have special structures for penetrating a host. Host tissue penetration occurs to the point of vascular connectivity. Fungi can invade a host to the point of vascular conncectivity.]
[(E)]

[[Ques]]: Why does life continue?
Options:
- (A) to use resources
- (B) organisms produce offspring.
- (C) sub-units of species
- (D) things don't die
- (E) the Earth being tilted
- (F) production of energy
- (G) to keep going
- (H) by keeping them warm
[[Ans]]:
[Reproduction is the process by which organisms give rise to offspring. Life continues because of reproduction. Life continues because organisms give rise to offspring.]
[(B)]