Midterm_Quiz1_ENV101

If 100 frogs are captured, marked, and released into the Sulu Sea Tropical Forest, then a second trapping 250 frogs are captured and 50 of them are marked. Using the equation of mark and recapture, what is the population size?

• 25000

• 1000

• 400

• 2000

1. If you were to measure the degree of difference between all of the dogs that share a species in a town, what would you be measuring?

• 1. Genetic diversity

• 1. Habitat diversity

• 1. Biodiversity

• 1. Species richness

1. Which of the following is the worst culprit when it comes to activities threatening species with extinction?

• 1. Chemical pollutants

• 1. Habitat destruction

• 1. Overharvesting

• 1. Disease

Whose cooperation does maintaining biodiversity require?

• 1. Scientists

• Informed Citizens

• Nations

• All of the above

If the death rate in a population is greater than the birth rate:

• The population will generally decrease.

• The population will remain the same.

• The population will increase.

• The birth rate will rise.

A rabbit, possum and an owl are all members of the same:

• species

• niche

• community

• population

The number of individuals in an area of a specific size:

• population

• population density

• quadrat

• demography

• Use the graph to answer the question about changes in the squirrel population.Over which time period(s) did the population increase?

• • From 1994-1997

• • From 1992-1994

• • From 1994-1996

• • From 1997-1999

• Biodiversity is

• • A type of coconut

• • Animal species

• • The spread of all living things

• • Plant species

• Which of the following environments have the most biodiversity?

• • Sahara Desert

• • Amazon Rainforest

• • North Pole

• • Mt Everest