Line 1: *Macroevolution is evolution over geologic time above the level of the species. Speciation events are thus examples of macroevolution. Speciation events show evolution over geologic time above the level of the species.*
*(A)*
Line 2: *What shows evolution over geologic time above the level of the species?
Options:
- (A) speciation events
- (B) Leptospirosis
- (C) cliffs
- (D) rapid expansion
- (E) peachleaf willow
- (F) swamp vegetation
- (G) Darwin
- (H) RNA*
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Line 1: *Streams may start with runoff or water seeping out of a spring. Water is everywhere H20. Streams often start with runoff or H20 seeping out of a spring.*
*(E)*
Line 2: *Where do streams often get h20?
Options:
- (A) perspiration
- (B) at or near the margins
- (C) raising their temperature
- (D) the landscape
- (E) seeping out of a spring
- (F) cloudy and rainy weather
- (G) Inches or fractions of inches.
- (H) precipitation*
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Line 1: *Hydrogen bonds cause water to expand when it freezes. Water is everywhere H20. Hydrogen bonds cause H20 to expand when it freezes.*
*(C)*
Line 2: *What causes h20 to expand when frozen?
Options:
- (A) evaporation
- (B) vaporization
- (C) hydrogen bonds
- (D) helium bonds
- (E) mysterious forces
- (F) nitrogen bonds
- (G) Physical weathering
- (H) precipitation*
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Line 1: *Some arthropods have special excretory structures. Terrestrial arthropods have an excretory system that conserves water and eliminates waste. Some animals have excretory structures that conserve water and elminate waste.*
*(F)*
Line 2:
*What is the name of something some animals use to conserve water and elminate waste?
Options:
- (A) it keeps an organism warm
- (B) food and shelter
- (C) Exfoliation
- (D) an area swollen with pus
- (E) swamp vegetation
- (F) excretory structures
- (G) reusing materials
- (H) colder and wetter*
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