Ques and Ans: What do catalysts do?
Options:
- (A) metabolic reaction
- (B) breathe
- (C) get chemical reactions started
- (D) Slowing the transfer of heat
- (E) A compound that donates proton
- (F) fertilize eggs
- (G) have a positive impact on the environment
- (H) inhibit chemical reactions
(C)
Logic for the answer: All chemical reactions require activation energy to get started. Catalysts lower the activation energy for reactions. Catalysts help chemical reactions to get started.

Ques and Ans: Epilepsy and splay leg are located on the same what?
Options:
- (A) organ
- (B) Joules
- (C) kalenchoes
- (D) sensory neurons
- (E) chromosome
- (F) nerves
- (G) critical organs
- (H) four limbs
(E)
Logic for the answer: Genes that are located on the same chromosome are called linked genes. For example, epilepsy and splay leg tend to link with the vienna white gene. Epilepsy and splay leg are located on the same chromosome.

Ques and Ans: Hummingbirds are what they are today as a necessary consequence of their relationship to what?
Options:
- (A) a feeder
- (B) humans
- (C) bees
- (D) survival
- (E) animals
- (F) Plants
- (G) Earth
- (H) weeds
(F)
Logic for the answer: Some birds are pollinators that co-evolved with plants. Hummingbirds are the most common bird pollinators. Hummingbirds co-evolved with plants.

Ques and Ans: What is a major route of removing wastes from the body?
Options:
- (A) Detoxifying teas
- (B) Feces
- (C) Burping
- (D) Essential Oils
- (E) glucose
- (F) sodium
- (G) NaCl
- (H) rivers
(B)
Logic for the answer:
Excretion is the process of removing wastes and excess water from the body. Major route of excretion is in the feces. Feces are a major route of removing wastes and excess water from the body.