Science Review

Question 1

Which form of reproduction is most beneficial in ensuring the survival of a species because it produces diversity?

Accepted Answer

sexual reproduction

Question 2

"If students study for 2 hours a night then they will score a Mastery." This is a

Accepted Answer

hypothesis

Question 3

This is a form of _______ reproduction.

Accepted Answer

asexual

Question 4

The survival of an ecosystem depends on what organisms?

Accepted Answer

producers

Question 5

Fossil fuels are nonrenewable, which means

Accepted Answer

there is a limited supply

Question 6

The variable in an experiment that is being measured or observed is known as the

Accepted Answer

Dependent

Question 7

Which describes the correct relationship between heat and density?

Accepted Answer

If heat is removed from a substance it becomes more dense; particles close, If heat is added to a substance it becomes less dense; particles spread out

Question 8

Which of these represents a population?

Accepted Answer

a pack of wolves

Question 9

Cells with the same function that work together as a group are called

Accepted Answer

tissues

Question 10

What part of the cell is where DNA is stored to control the functions of the cell?

Accepted Answer

nucleus

Question 11

Respiration that breaks down glucose using oxygen is known as

Accepted Answer

aerobic

Question 12

When thermal (heat) energy is transferred to a substance; kinetic energy increases.

Accepted Answer

True

Question 13

Where does the energy come from that causes water on Earth to evaporate?

Accepted Answer

The Sun

Question 14

This is a form of ________ reproduction.

Accepted Answer

asexual

Question 15

Which variable do scientist keep the same in order to use for comparison?

Accepted Answer

control

Question 16

Water that falls from the sky as either rain, snow, or sleet.

Accepted Answer

precipitation

Question 17

What are the products for photosynthesis, which are the reactants in respiration?

Accepted Answer

glucose and oxygen

Question 18

Plant cells are different from animal cells because they contain

Accepted Answer

chloroplasts

Question 19

Is this decaying tree an abiotic or biotic factor?

Accepted Answer

Abiotic

Question 20

Which force on Earth pulls water back down as precipitation?

Accepted Answer

Gravity

Question 21

Which of the following is not a cause of global warming?

Accepted Answer

using a bicycle for transportation

Question 22

A specialized cell that works to transport oxygen and nutrients throughout our body.

Accepted Answer

red blood cells

Question 23

According to the LAW OF CONSERVATION OF MASS, when a substance undergoes a chemical reaction, mass is never lost.

Accepted Answer

True

Question 24

The niche of deer in an ecosystem is to eat producers, this makes them?

Accepted Answer

herbivores

Question 25

What level of organisms contain the most energy?

Accepted Answer

producers

Question 26

Which of the following describe the correct genotypes of the offspring?

Accepted Answer

50% homozygous recessive; 50% heterozygous

Question 27

When a substance is heated by the rising of warm matter replacing cooler matter, this transfer is _____.

Accepted Answer

convection

Question 28

Yellow is dominant over green. What percent of the offspring will be green?

Accepted Answer

50%

Question 29

When you add two substances together and notice bubbles form releasing a gas, this is a sign of a ____ change.

Accepted Answer

chemical

Question 30

Which form of digestion breaks down food using acids and enzymes?

Accepted Answer

chemical

Question 31

Genes are the smallest unit of heredity (genetic information).

Accepted Answer

True

Science Review

Questions 31

Science Review

Questions 31