ACT Science Practice Test - 5 - online test

Which one of the following is not in the insect family?

mosquito

bee

spider

bristletail

Insects are air-breathing arthropods with a body of three parts, three pair of legs, and usually two pairs of wings. The head bears a pair of antennae and a pair of compound eyes.

A protozoan never contains

cytoplasm

plastids

stamens

chromosomes

Protozoans never contains stamens

Charles Darwin suggested that species evolve by means of

motivation

selection

mutation

evolution

distribution

Charles Darwin suggested that species evolve from selection.

Coal is formed by the compression of

dinosaurs

fish

ferns

sandstone and shale

limestone

Coal was formed by the compression of ferns.

Photosynthesis in plants does not require the availability of

oxygen

carbon dioxide

water

light

Photosynthesis requires carbon dioxide, water, and light to occur in plants.

pH is a measure of

the strengths of acids and bases

the pressure of gas

the heat produced by a chemical reaction

weight of metals

pH is a measure of the strengths of acids and bases.

What is mitosis?

Mitosis is a sexual process that combines cells for the purpose of growth.

Mitosis is a process in which cell division produces gametes for sexual reproduction.

Mitosis is an asexual process in which cells divide for the purpose of growth and repair.

Mitosis is the process to carry genetic code from the DNA.

Mitosis is an asexual process in which cells divide for the purpose of growth and repair. Two identical daughter cells are produced.

Gamma rays are

particles

high-energy X rays

high speed electrons

heavy particles

Gamma rays are high-energy X rays.

Bases do not have which of these properties?

a bitter taste

turn litmus paper blue

conduct electricity

a sour taste

Bases conduct electricity, have a bitter taste, and turn litmus paper blue. An acid has a sour taste.

When measured on the pH scale an acid is

= 7

> 5

< 7

> 7

An acid will have a pH < 7 while a base will have a pH > 7, If the pH balance is equal to 7 then the material is neutral.