Population Ecology

Front

What happens to the population of ladybugs if there is an increase in aphids?

Back

The ladybug population will increase.

Answer explanation

The ladybug population will increase is correct. Predator numbers will respond to the increased food supply by increasing.

Front

Where does the tree get its energy from? Where does the energy for these food chains begin?

Back

as solar energy

Answer explanation

All plants rely on the sun. All animals depend on plants. Some animals eat plants for food, and some animals consume other animals that eat plants for food.

Front

A tapeworm is an organism that lives inside the intestines of larger animals, including man, and absorbs nutrients from its host. This type of symbiotic relationship is called

Back

parasitism

Answer explanation

This kind of symbiotic relationship is called parasitism.. A parasite lives in or on another organism called a host. The parasite benefits from the host by draining nutrients and the host is harmed by the interaction with the parasite.

Front

Which factor would INCREASE the carrying capacity for white-tailed deer in an Eastern temperate forest ecosystem?

Back

The re-introduction of the American chestnut tree, which produces many seeds, and used to live in North Carolina.

Front

Which animal will MOST LIKELY be affected by an increase in the fox population to 40? Options: Bears, Rabbits, Sparrows, Robins.

Back

Rabbits

Front

What would happen to the food chain if the frogs began to die off?

Back

The insect numbers would get larger; the grass numbers would get smaller.

Front

^{The population of mice in a local forest ecosystem has recently died out due to disease. In the past, these mice made up a large part of the diet of the forest fox. What is the best prediction about what will happen to the foxes?}

Back

The drop in the mouse population will lead to a drop in the fox population.

Front

What factor is important to ensure the stability of the Yellowstone National Park ecosystem with elk herds?

Back

The predators, such as grey wolves, to keep the elk population from growing too large.

Front

What would happen if competition for food in the Arctic increased and it was difficult for the Arctic fox to find its prey?

Back

The Arctic fox population will decline.

Front

What factors would increase a carrying capacity for a population? Options: I. habitat loss, II. increase in food sources, III. access to clean water, IV. increase in competition, V. increase in diseases

Back

II and III