Ans: (E)
Question: What produces a diploid zygote?
Options:
- (A) salamanders
- (B) Plant reproduction
- (C) peachleaf willow
- (D) permineralization
- (E) sexual reproduction
- (F) Veins and arteries.
- (G) Chlorophyll
- (H) Most plants
CoT: Fertilization of gametes produces a diploid zygote. Sexual reproduction requires formation of gametes, followed by fertilization. Sexual reproduction produces a diploid zygote.

Ans: (H)
Question: Arthropods have a life cycle with what?
Options:
- (A) rapid expansion
- (B) survival
- (C) aerobic capacity
- (D) food and shelter
- (E) an organism's body
- (F) reproduce
- (G) barnacles
- (H) mixing genes up
CoT: Arthropods have a life cycle with sexual reproduction. Sexual reproduction mixes the genes up more than is possible with asexual reproduction. Arthropods have a life cycle with mixing genes up.

Ans: (E)
Question: Millipedes lack what?
Options:
- (A) epidermal
- (B) segmented body
- (C) leg pairs
- (D) a cuticle
- (E) a vertebral column
- (F) diplosomites
- (G) Chlorophyll
- (H) biological diversity
CoT: Invertebrates are animals that lack a vertebral column, or backbone. Millipedes, spiders and other invertebrates are probably taken as well. Millipedes lack a vertebral column.

Ans: (E)
Question: What can stay hidden in a hibernating state inside the body?
Options:
- (A) infections
- (B) blood cells
- (C) fungi
- (D) insects
- (E) viruses
- (F) honeybees
- (G) plasma
- (H) barnacles
CoT: Some viruses live in a dormant state inside the body. When ferns are dormant it is as if they are hibernating. Some viruses live in a hibernating state inside the body.