Unit 5 Review: Population Biology

The number of individuals per unit area is a population's growth rate.

• True
• False

If the death rate of a population is greater than the birthrate, the population shrinks.

• True
• False

Tags

NGSS.MS-LS2-4

There are about four million births per year in the United States. The statistic is a population dynamic called growth rate.

• True
• False

Tags

NGSS.HS-LS4-5

Logistic growth occurs when a population's growth slows or stops, following a period of rapid growth.

• True
• False

Tags

NGSS.HS-LS2-2

NGSS.HS-LS2-6

Predators can limit the size of populations by weakening their hosts, causing disease or death.

• True
• False

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Human activities, such as damning rivers, are density-independent limiting factors.

• True
• False

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Density-dependent limiting factors affect all populations, whether the population size is two or one hundred.

• True
• False

Resource shortages triggered by increasing population size are density-independent limiting factors.

• True
• False

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The size of the human population tends to increase with time.

• True
• False

Tags

NGSS.MS-ESS3-4

The human population grew slowly from the beginning of human existence, and then began to grow exponentially about 200 years ago.

• True
• False

Tags

NGSS.MS-ESS3-4