Population Dynamics- Pre-IB Biology

Multiple Choice

REVIEW: What are BIOTIC factors?

• Nonliving Factors

• Living Factors

• A group of species living in the same area at the same time

• Factors that are living and nonliving

Open Ended

What are 2 biotic factors and 2 abiotic factors in the picture?

Open Ended

If the following dispersion patterns is present in a population, what can you tell about the population overall and their available resources?

Multiple Choice

Which of the following is not a type of dispersion?

• Uniform

• Stratified

• Clumoed

• Random

Multiple Choice

You drive through Iowa in the spring and notice that along a stretch of several kilometers, every third fence post has a male redwing blackbird perched on it defending its nesting territory. This is an example of:

• Clumped Dispersion

• Random Dispersion

• Uniform Dispersion

• Artifical Dispersion

Multiple Choice

What type of limiting factor is present if a disease outbreak occurs because populations got too big, and causes half the population to decline?

• Density Dependent Limiting Factor

• Density Independent Limiting Factor

Multiple Choice

Which factor is density dependent?

• Climate

• Weather

• Rising Sea Level

• Food Competition

Multiple Choice

Which of the following is most clearly a case of density-dependent population regulation?

• the summer drying of savanna grass for an insect that feeds on grass sap

• a dangerous new flu strain that is transmitted among humans by sneezing

• the first hard frost of fall for a population of annual morning glory vines

• the occurrence of rainstorms for an opportunistic desert annual

Open Ended

An ecosystem has enough food to feed 100 bunnies (its carrying capacity is only 100 bunnies). The bunnies reproduce and there are now 200 bunnies. What will happen to this population?