Ques and Ans: What kind of life cycle do desmids have?
Options:
- (A) allow growth
- (B) Leptospirosis
- (C) varied life cycle
- (D) solid, liquid, gas
- (E) Veins and arteries.
- (F) immortal
- (G) fixed life cycle
- (H) static life cycle
(C)
Logic chain: Algae have varied life cycles. Desmids are green algae, members of the Chlorophyta. Desmids have varied life cycles.

Ques and Ans: Mutation leads to _.
Options:
- (A) Devolution
- (B) Plants growth
- (C) rapid expansion
- (D) Evolution.
- (E) Degeneration
- (F) Extinction
- (G) massive damage
- (H) anemia
(D)
Logic chain: Mutation creates new genetic variation in a gene pool. Genetic variation is the raw material for evolution. Mutation leads to evolution.

Ques and Ans: Organells found in the cells of plants and algae enable many things, including:
Options:
- (A) movement
- (B) photosyntehsis
- (C) food and shelter
- (D) sugar
- (E) glucose
- (F) organic
- (G) Energy.
- (H) survival
(B)
Logic chain: Chloroplasts are organelles that are found in the cells of plants and algae. Chloroplasts Chloroplasts serve as the site of photosynthesis. The site of photosynthesis in plant and algae cells is found within organelles.

Ques and Ans: Organisms in a marine biome must be be adapted to what in the water?
Options:
- (A) mud
- (B) Nutrients
- (C) sodium
- (D) toxins
- (E) motion
- (F) sugar
- (G) energy
- (H) an anion
(C)
Logic chain:
Organisms that live in marine biomes must be adapted to the salt in the water. Another name for salt is sodium. Organisms that live in marine biomes must be adapted to the sodium in the water.