What can be a disease with genetic traits?
Options:
- (A) Allergies
- (B) cancer
- (C) blood
- (D) flu
- (E) disease cells
- (F) anemia
- (G) Smoking
- (H) illness
--
Let's think first: Cancer genes can be inherited. Genetic diseases are diseases that are inherited. Cancer genes can be genetic.... So the answer is [(B)]

Carbon cycles quickly between organisms and
Options:
- (A) O2
- (B) DNA
- (C) comets
- (D) air
- (E) Aves
- (F) ocean
- (G) satellites
- (H) lung
--
Let's think first: Carbon cycles quickly between organisms and the atmosphere. Atmosphere is the blanket of air around the earth. Carbon cycles quickly between organisms and the blanket of air around the earth.... So the answer is [(D)]

What tells a cell what to do?
Options:
- (A) electricity
- (B) proteins
- (C) A computer
- (D) Energy
- (E) nerves
- (F) sweating
- (G) heat energy
- (H) Energy.
--
Let's think first: Molecules of DNA are encoded with instructions that tell cells what to do. DNA encodes the information for protein sequences. Proteins tell cells what to do.... So the answer is [(B)]

Mature sponges produce what?
Options:
- (A) eggs and sperm
- (B) live young
- (C) just sperm
- (D) Organic compounds
- (E) Chemical energy
- (F) just eggs
- (G) heat energy
- (H) gastropod shells
--
Let's think first: Adult sponges produce eggs and sperm. Adults are sexually mature. Mature sponges produce eggs and sperm.... So the answer is [(A)]

What do all vertebrates have?
Options:
- (A) sensory neurons
- (B) characteristics
- (C) a complete digestive system
- (D) Veins and arteries.
- (E) sub-units of species
- (F) wings and feathers
- (G) gills
- (H) gizzard
--
Let's think first: Chordates have a complete digestive system and a closed circulatory system. All chordates are vertebrates. Vertebrates have a complete digestive system and a closed circulatory system.... So the answer is [(C)]

Organisms that live in marine biomes must be adapted to most of the what on the planet?
Options:
- (A) water
- (B) liquid
- (C) Light
- (D) Energy.
- (E) growth
- (F) Winter
- (G) energy
- (H) heat
--
Let's think first: Organisms that live in marine biomes must be adapted to the salt in the water. Most of the water on the planet is salt water in the oceans. Organisms that live in marine biomes must be adapted to most of the water on the planet.... So the answer is [(A)]