Cells are what, so they are the building blocks of organisms?
Options:
- (A) Most plants
- (B) so small
- (C) all matter
- (D) homogenous
- (E) so deadly
- (F) so fortunate
- (G) so big
- (H) bacteria
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Let's think first: Cells are the microscopic building blocks of organisms. Cells are so small that they can only be seen under a microscope. Cells are so small, they are the building blocks of organisms.... So the answer is [(B)]

What forms secondary vascular tissues in trees?
Options:
- (A) allow growth
- (B) primary growth
- (C) secondary growth
- (D) In their leaves
- (E) end growth
- (F) mating
- (G) Most plants
- (H) shrub beds
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Let's think first: Secondary growth forms secondary vascular tissues and bark. All trees have bark. Trees secondary growth forms secondary vascular tissues.... So the answer is [(C)]

What has circulatory system with a two-chambered heart?
Options:
- (A) sharks
- (B) trout
- (C) pan
- (D) toads
- (E) Birds
- (F) animals
- (G) mammals
- (H) Man
--
Let's think first: Fish have a circulatory system with a two-chambered heart. Fish species include salmon and trout. Salmon and trout have a circulatory system with a two-chambered heart.... So the answer is [(B)]

Where can mucus like organisms be found?
Options:
- (A) the environment
- (B) Contaminated wounds
- (C) on food
- (D) on rotting logs and compost
- (E) an area swollen with pus
- (F) in the grass
- (G) in the refridgerator
- (H) mouth of rivers
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Let's think first: Slime molds are fungus-like protists commonly found on rotting logs and compost. True Slime Molds Slime molds are a mucus-like organism. Mucus like organisms can be found on rotting logs and compost.... So the answer is [(D)]

Many plants respond to the days growing shorted by doing what?
Options:
- (A) colder and wetter
- (B) scattering seeds
- (C) resistance activities
- (D) Decrease bodily water
- (E) evaporation
- (F) Exfoliation
- (G) bending light rays
- (H) reusing materials
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Let's think first: Many plants respond to the days growing shorter in the fall by going dormant. When the growing season ends, plants become dormant or scatter seeds and die. Many plants respond to the days growing shorted by scattering seeds.... So the answer is [(B)]

Organisms that live in the ocean are adapted to
Options:
- (A) purified water
- (B) the environment
- (C) Absorb light
- (D) air
- (E) survival
- (F) salt water
- (G) murky water
- (H) produce light
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Let's think first: Organisms that live in marine biomes must be adapted to the salt in the water. Some familiar examples of biomes include tundra, desert, chaparral, and open ocean. Organisms that live in the ocean must be adapted to the salt water.... So the answer is [(F)]