Ques and Ans: Bacterial infection can inhibit ejaculation of what?
Options:
- (A) babies
- (B) sperm
- (C) sugar
- (D) animals
- (E) erection
- (F) eggs
- (G) humans
- (H) pregnancy
(B)
Logic chain: Ejaculation occurs when muscle contractions propel sperm from the epididymes. Bacteria usually cause epididymitis. Ejaculation of sperm can be inhibited by bacterial infection.

Ques and Ans: How do ants communicate to other ants to encourage them to follow?
Options:
- (A) Skywriting
- (B) Electrical energy
- (C) Using a phone to communicate
- (D) Leaving a written communicatio
- (E) Something coming from a gland
- (F) By wind and rain
- (G) Chemical energy
- (H) Leaving chemical trails
(H)
Logic chain: Ants communicate with chemicals called pheromones. Physiologically, ants leave a trail of pheromones, which other ants then follow. Ants communicate by leaving chemical trails for other ants to follow.

Ques and Ans: What organ is harmed by air pollution?
Options:
- (A) piano
- (B) church organ
- (C) heart
- (D) harp
- (E) bushes
- (F) animals
- (G) eardrum
- (H) lungs
(C)
Logic chain: Air pollution harms the respiratory and circulatory systems. Sulfur dioxide can irritate the respiratory system and damage the heart and circulatory system. Air pollution damages the heart.

Ques and Ans: Splitting into what is the final stage of cell division in eukaryotes as well as prokaryotes?
Options:
- (A) fewer cells
- (B) merged cells
- (C) two cells
- (D) Chlorophyll
- (E) five cells
- (F) autumn
- (G) allow growth
- (H) Leptospirosis
(C)
Logic chain:
Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis , the cell body splits into two cells. Splitting into two cells is the final stage of cell division in eukaryotes as well as prokaryotes.