1.3 Test Review Part 2

The number of individual organisms that die in a population in a given year.

The movement of individuals into a population.

The number of individual organisms born into a population in a given year.

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.

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

Within the last 6 months a population of plants received less sunlight due to a prolong natural storm what will happen to the population of the plant ?

• The population of the plants will thrive.
• The population of the plants will decrease.
• The population of the plants will remain unchanged.
• The population of the plants will grow larger.

Why can't plants grow at the bottom of the ocean?

• Plants can grow at the bottom of the ocean due to high nutrient levels.
• Plants can't grow at the bottom of the ocean due to lack of sunlight.
• Plants thrive in complete darkness at the ocean floor.
• The ocean floor has plenty of water for plant growth.

An increased death rate causes a population to .........

• fluctuate
• stabilize
• increase
• decrease

An increased birth rate cause a population to......

• increase
• fluctuate
• remain the same
• decrease

Natural disaster such hurricane, tornadoes , tsunami can destroy habitats how can this affect biodiversity ?

• Loss of habitat increases species diversity.
• Habitat loss has no effect on biodiversity.
• Loss of habitat leads to more abundant ecosystems.
• Loss of habitat negatively impacts biodiversity by reducing species diversity and increasing extinction rates.