Chap 6 Review: Population & Community

A growth model that has a "J-shaped" curved" is 

• Logistic Growth
• Exponential Growth
• Linear Growth
• Instrinsic Growth

A population of bears has 100 births and 150 deaths in a year. The population of bears is 

• Increasing
• Remaining the Same
• Decreasing

All of the populations of organisms within a given area make up

• an ecosystem
• a community 
• a trophic level 
• a biosphere 

A population experiences rapid growth at first but then slow. What is likely to have happened?

• The carrying capacity has been reached
• The sex ratio has changed
• Immigration has diminished
• The intrinsic growth rate has changed 

The number of males and females in a population is best expressed in the 

• Population Density
• Population Distribution
• Sex Ratio
• Age Structure 

A symbiotic relationship in which both species benefit is called

• Parasitism 
• Commensalism
• Mutualism
• Predation

A species that has a significant impact on its ecosystem is 

• a Keystone Species
• An Endangered Species
• An Ecosystem Engineer
• An Extinct Species

A tick on a human is an example of 

• Predation
• Parasitism
• Commensalism
• Mutualism

A type of species that has a low growth rate, has few off-spring, and provides parental care. (Example: Elephant) 

• S- strategist
• J- strategist
• K-strategist
• r-strategist 

What fishing process is threatening shark populations across the world?

• Sharking 
• Shark-Finning 
• Harpooning
• Shark Tourism