What falls decreasingly on the earth from the equator to the poles?
Options:
- (A) autumn
- (B) heat
- (C) chill
- (D) Vapor
- (E) Energy
- (F) cold
- (G) summer
- (H) Mass
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Let's think first: Temperature falls from the equator to the poles. Temperature is a measure of the amount of heat. Heat falls from the equator to the poles.... So the answer is [(B)]

What is a potential outcome of genetic mutation?
Options:
- (A) HIV
- (B) albino
- (C) anemia
- (D) pizza eating turtles
- (E) genealogy
- (F) SNPs
- (G) biology
- (H) death
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Let's think first: Mutations may change the structure of a chromosome or just change a single nucleotide. SNPs involve polymorphisms at the single nucleotide level. Mutations may change the structure of a chromosome or just cause SNPs.... So the answer is [(F)]

What process provides one substance transported by the blood?
Options:
- (A) breathing
- (B) heat produced
- (C) drink
- (D) complex
- (E) osmosis
- (F) sweating
- (G) cell division
- (H) condensation
--
Let's think first: Oxygen is just one substance transported by the blood. Breathing and circulation allow oxygen to be transported to the body's cells. Breathing provides one substance transported by the blood.... So the answer is [(A)]

Some viruses do not affect the host and live in what kind of state in the body?
Options:
- (A) inactive
- (B) devastating
- (C) recovery
- (D) negative
- (E) hyperactive
- (F) sleep
- (G) excited
- (H) cold
--
Let's think first: Some viruses live in a dormant state inside the body. When inactive or dormant, Dendrobiums require little or no fertilizer. Some viruses live in an inactive state inside the body.... So the answer is [(A)]

What systems are pollutants bad for?
Options:
- (A) destroying life
- (B) classification system
- (C) an organism's body
- (D) respiratory and circulatory
- (E) animal habitats
- (F) ambulatory systems
- (G) social security system
- (H) the environment
--
Let's think first: Air pollution harms the respiratory and circulatory systems. Air pollution is caused by lots of different pollutants. Several different pollutants harm the respiratory and circulatory systems.... So the answer is [(D)]

What continues to grow throughout their lives?
Options:
- (A) potatoes
- (B) Hemoglobin
- (C) tortoises
- (D) plastic roses.
- (E) Human teeth.
- (F) Lilies.
- (G) Silk daisies.
- (H) vegetation
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Let's think first: Most plants continue to grow throughout their lives. Lilies continually produce new bulbs, from which grow new plants. Lilies continue to grow throughout their lives.... So the answer is [(F)]