Ecology

Demography is the science that studies

• Population using vital statistics such as births, deaths, ages…

• How things change overnight in the news

• How people react to their climate zones

• When people want to leave the country

Tags

NGSS.MS-LS2-1

In one year, 35 giraffes are born to a population. What does this number represent?

• Growth rate

• Emigration

• Immigration

• Birth rate

Tags

NGSS.MS-LS1-4

A square kilometer of forest has 200 deer. What is the term that is used to describe this number?

• Density-Dependent

• Birth rate

• Limiting factors

• Population Density

Which two factors can both cause a population to increase?

• birth rate and emigration

• birth rate and immigration

• death rate and immigration

• death rate and emigration

Predict what might happen to a population that is experiencing little immigration and emigration, low birth rate, and high death rate.

• The population decreases.

• The population increases.

• The population grows too much too fast.

• The population grows outside of its habitat.

Tags

NGSS.MS-LS2-4

The great hornbill and the toucan both eat the same fruit, insects, and nuts. They both live in the rainforest. Their large bills function to get food and also as warning coloration. Which of the following is a limiting factor to the toucan population?

• overlapping breeding seasons

• bill coloration

• genetic variability

• competition

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

Tags

NGSS.MS-LS2-4

If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

Largest number of individuals of a population that the environment can support...  

• carrying capacity
• population crash
• lag phase
• mutualism

Tags

NGSS.MS-LS2-1

Plants and animals that are not native to a habitat (nonindigenous)...

• predators
• biological magnification
• invasive species
• prey

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2