What breathes by relaxing the lungs?
Options:
- (A) mammals
- (B) tortoises
- (C) dogs
- (D) chickens
- (E) ducks
- (F) humans
- (G) crocodiles
- (H) animals
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Let's think first: Mammals breathe with the help of a diaphragm. Belly breathing uses the diaphragm, which helps relax the lungs. Mammals breathe by relaxing the lungs.... So the answer is [(A)]
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What is the euphrates larger than?
Options:
- (A) ocean
- (B) planet
- (C) trees
- (D) sea
- (E) Inches
- (F) Sediment
- (G) stream
- (H) Length
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Let's think first: Rivers are usually larger than streams. And the fourth river is the Great River, the river Euphrates. The Euphrates is larger than a stream.... So the answer is [(G)]
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Rivers easily dissolve nutrients and:
Options:
- (A) bacteria
- (B) chemicals
- (C) oxygen
- (D) sodium
- (E) vitamin C
- (F) glucose
- (G) a solute
- (H) a hazard
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Let's think first: Running water is better able to dissolve oxygen and nutrients than standing water. Large, warm rivers hold populations but few occur in cold running water. Oxygen and nutrients dissolve easily in rivers.... So the answer is [(C)]
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What are genes that are located on the same molecules of dna complexed with proteins called?
Options:
- (A) bioaerosols
- (B) solid, liquid, gas
- (C) interact
- (D) sensory neurons
- (E) organs
- (F) deltas
- (G) more abundant
- (H) linked genes
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Let's think first: Genes that are located on the same chromosome are called linked genes. Chromosomes are molecules of DNA complexed with proteins. Genes that are located on the same molecules of DNA complexed with proteins. are called linked genes.... So the answer is [(H)]
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