Ques and Ans: What powers sweat?
Options:
- (A) heat produced
- (B) The body's fuel
- (C) a gas in the air
- (D) hydration
- (E) When the water is hot
- (F) air cools
- (G) matter vibrating
- (H) Cooling vapors
(B)
Logic chain: Evaporation of sweat uses energy, and the energy comes from body heat. Energy is the body's fuel. When sweat is evaporated, the body's fuel is used.

Ques and Ans: Leaves lack what?
Options:
- (A) heat energy
- (B) heat or cold
- (C) permineralization
- (D) scattered light
- (E) secondary meristem
- (F) Plant growth is reduced
- (G) Chlorophyll
- (H) epidermis and dermis
(E)
Logic chain: Secondary meristem is located within and around the vascular tissues. Leaves lack Vascular Tissues. Leaves lack secondary meristem.

Ques and Ans: Lobsters have special structures for:
Options:
- (A) excretion
- (B) Cooking
- (C) produce light
- (D) staying warm
- (E) butter
- (F) Maine
- (G) layers of fat
- (H) tastiness
(A)
Logic chain: Some arthropods have special excretory structures. An ant and a lobster are both arthropods. Lobsters have special excretory structures.

Ques and Ans: Natural selection results in:
Options:
- (A) insects
- (B) root growth
- (C) Plants growth
- (D) Animal survival
- (E) animals
- (F) Plant reproduction
- (G) mammals
- (H) specialization
(H)
Logic chain:
Specialization occurs when competing species evolve different adaptations. Adaptation is the result of natural selection. Specialization is a result of natural selection.