Ques and Ans: What kind of animal would be an endothermic tetrapod vertebrate?
Options:
- (A) animals in the class aves
- (B) barks and snarls
- (C) passenger pigeons
- (D) Something that is self-aware
- (E) Generating heat
- (F) retaining heat
- (G) absorb light energy
- (H) it keeps an organism warm
(A)
Logic for the answer: Birds are endothermic tetrapod vertebrates. Class Aves is for the birds, literally. Animals in the class aves are endothermic tetrapod vertebrates.

Ques and Ans: What does an earthworm do that would help plants?
Options:
- (A) reusing materials
- (B) It helps them survive
- (C) eat the plant
- (D) scare away birds
- (E) reproduce
- (F) hydrate their cells
- (G) burrow in the dirt
- (H) eat all the dirt
(G)
Logic for the answer: Earthworm burrows help aerate soil, which is also good for plants. Dirt is really misplaced soil. Earthworm burrows help aerate dirt, which is also good for plants.

Ques and Ans: Some agents that infect cells live in what state inside the body?
Options:
- (A) solid
- (B) conscious
- (C) expelled
- (D) bacteria
- (E) infected
- (F) dormant
- (G) cellular
- (H) protected
(F)
Logic for the answer: Some viruses live in a dormant state inside the body. Viruses Viruses are agents that infect cells, yet lack many of the characteristics of life. Some agents that infect cells live in a dormant state inside the body.

Ques and Ans: What brings the building blocks of proteins to the ribosomes in the correct sequence?
Options:
- (A) recycling
- (B) flow of electrons
- (C) Chemical energy
- (D) it needs them
- (E) an engine
- (F) light energy
- (G) A computer
- (H) molecules of tRNA
(H)
Logic for the answer:
Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Amino Acids Amino acids are the building blocks of proteins. Molecules of tRNA bring the building blocks of proteins to the ribosome in the correct sequence.