What provides protection for soft tissues and internal organs?
Options:
- (A) fur and fat
- (B) eye color
- (C) peachleaf willow
- (D) synapses
- (E) a cuticle
- (F) layers of fat
- (G) nerves
- (H) the skeleton
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Let's think first: Bone provides protection for soft tissues and internal organs. Bone is the substance that forms the skeleton of the body. The skeleton provides protection for soft tissues and internal organs.... So the answer is [(H)]

Some insets can use their antennae to detect what?
Options:
- (A) light waves
- (B) photons
- (C) Electrical energy
- (D) vibrating air
- (E) new lands
- (F) water sources
- (G) bending light rays
- (H) electricity
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Let's think first: Some insects can use their antennae to detect sound. When ears detect the vibrating air, signals are sent to the brain that are interpreted as sounds. Some insets can use their antennae to detect vibrating air.... So the answer is [(D)]

Trna and the ribosome work to produce:
Options:
- (A) A kernel
- (B) protein
- (C) food
- (D) Energy.
- (E) power
- (F) Joules
- (G) alleles
- (H) Energy
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Let's think first: Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Ribosome binding site, start and stop codons, protein coding sequence. Molecules of tRNA bring amino acids to the ribosome to create proteins.... So the answer is [(B)]

What is a central nervous system stimulant?
Options:
- (A) saccharose
- (B) barbiturates
- (C) cigarettes
- (D) sweating
- (E) muscle relaxants
- (F) A Greek letter
- (G) Decibels
- (H) valium
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Let's think first: Caffeine is a central nervous system stimulant. Likewise, the caffeine and saccharose stimulate the body's stimulation of serotonin. Saccharose is a central nervous system stimulant.... So the answer is [(A)]

_ is how organisms grow and repair themselves.
Options:
- (A) complex
- (B) recycling
- (C) properties
- (D) fusion
- (E) fission
- (F) bacteria
- (G) Mitosis
- (H) potatoes
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Let's think first: Cell division is how organisms grow and repair themselves. Mitosis is cell division. Mitosis is how organisms grown and repair themselves.... So the answer is [(G)]

Where does intense activity occur in a plant?
Options:
- (A) Roots
- (B) Buds
- (C) bamboo
- (D) fields
- (E) Summer
- (F) years
- (G) Hairs
- (H) Petals
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Let's think first: Roots have primary and secondary meristems for growth in length and width. Meristems are zones of intense activity. Roots are zones of intense activity.... So the answer is [(A)]