Newton’s First Law of Motion states that objects in motion remain in motion unless acted upon by an outside force, and objects at rest stay at rest unless acted upon by an outside force. This statement is also referred to as the law of

• Momentum

• Inertia

• Force

• Friction

Which atmospheric layer contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Humans can breed plants and animals to have useful traits. By selecting which animals are allowed to reproduce, humans can influence an organism’s genotype. What name did Darwin use to describe this process?

• Natural selection

• Hybridism

• Survival of the fittest

• Artificial selection

Which of the following is equal to the atomic number of a chemical element?

• Number of protons

• Numbers of neutrons

• Mass numbers

• Number of atoms

Which type of symbiotic relationship takes place when one member of the association benefits while the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Predation

In the field of genetics, an organism’s appearance is referred to as its:

• Genes

• Alleles

• Genotype

• Phenotype

The tilt of the Earth's rotational axis toward or away from the sun causes:

• Seasons

• Global warming

• Daylight savings time

• 24-hour days

The Big Bang theory is a model used to explain the:

• Reason the universe was created

• Beginning of life

• Origin of the universe

• Law of gravity

Animals that feed exclusively on plants are called:

• Primary consumers

• Secondary consumers

• Primary producers

• Tertiary consumers

Which of the following biological classifications is the largest and most inclusive?

• Phylum

• Kingdom

• Family

• Class