The Study of Life

Living things are made of one or more cells

• true

• false

All living things ____ to make more living things.

• adapt
• develop
• grow
• reproduce

In which of the following types of infection will the infected host cell burst?

• lysogenic infection

• prophage infection

• provirus infection

• lytic infection

Which phrase best describes Earth’s biodiversity?

• greater in consistently warm areas

• greater toward Earth’s poles

• greater according to energy needs

• greater where temperatures are most variable

Biosphere

• the study of all living things

• an individual living thing

• the place where all living things are found on Earth

• the basic unit of life

LEARNING LOG: Rate your experience:

• I can teach others.

• I understand but I need more practice.

• I need help.

On Earth, biodiversity generally increases from the

• poles to the equator.

• equator to the rainforest.

• east to the west.

• north to the south.

When viral DNA combines with the host cell’s DNA, the viral DNA becomes a

• virion.

• prophage.

• capsid.

• membrane.

Why is Earth's biodiversity greatest near the equator?

• There is more land at the equator than at the poles.

• Living things can reproduce faster in warm climates than in cold climates.

• More species can live in warm climates than in cold climates.

• There is too much solar radiation at the poles to sustain life.

What process regulates an organism’s internal

conditions and keeps them stable?

• adaptation

• equilibrium

• homeostasis

• metabolism