ASVAB General Science Practice Test 184551 Results

Your Results Global Average
Questions 5 5
Correct 0 3.81
Score 0% 76%

Review

1

A major difference between sound waves and light waves is which of the following?

70% Answer Correctly

a sound wave cannot travel through a vacuum

all of these are correct

a sound wave is much slower than a light wave

a sound wave is mechanical while a light wave is electromagnetic
Solution

A vibrating object produces a sound wave that travels outwardly from the object through a medium (any liquid or solid matter). The vibration disturbs the particles in the surrounding medium, those particles disturb the particules next to them, and so on, as the sound propagates away from the vibration.

2

A person's genotype is their genetic makeup and includes:

82% Answer Correctly

recessive alleles

phenotypes

dominant alleles

both dominant and recessive alleles
Solution

A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.

3

Heredity is the passing on of physical or mental characteristics genetically from one __________ to another.

81% Answer Correctly

species

family

cell

generation
Solution

Heredity is the passing on of physical or mental characteristics genetically from one generation to another. Heredity is made possible via large strings of chromosomes which carry information encoded in genes.

4

Molecules and atoms that are inputs to a chemical reaction are known as which of the following?

62% Answer Correctly

reactants

components

fuel

products
Solution

During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).

5

In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:

85% Answer Correctly

decomposers

producers

scavengers

primary consumers
Solution

Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.