Practice Flashcard - 4

Front

What are the factors capable of driving natural selection?

Back

Factors include competition with other members of the species, disease-causing organisms, extreme temperatures, and all of the answers are correct.

Front

What is an example of primary productivity?

Back

A wild raspberry plant growing 30 grams of new leaf mass during a day of photosynthesis.

Front

Can organisms develop new traits because they desire them?

Back

FALSE

Front

What attributes could indicate a broad niche for an organism?

Back

Attributes include a wide range of foods eaten, activity periods extending over much of the day and evening, and tolerance of a wide range of temperatures.

Front

What is the term for the behavior of red-winged blackbirds chasing away other red wings from their nests?

Back

This behavior is called territoriality and is an example of intraspecific competition.

Front

Define natural selection.

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is primary productivity?

Back

Primary productivity is the rate at which energy is converted by photosynthetic and chemosynthetic autotrophs to organic substances.

Front

What is intraspecific competition?

Back

Intraspecific competition is competition between individuals of the same species for limited resources.

Front

What is interspecific competition?

Back

Interspecific competition is competition between individuals of different species for the same resources.

Front

What is the significance of a broad niche?

Back

A broad niche allows an organism to exploit a variety of resources, increasing its chances of survival.