Ecology Test Review

Ecology is...

• The study of the interaction between living things and their environment.

• food, water, shelter

• the study of earth

• the study of ecosystems

Peach seeds are located inside fruit. How do peach seeds most likely spread?

• by being digested by animals

• by being carried by the wind

• by being carried by the water

• by catching inside animals fur to be carried by them

Why did Darwin's finches on the Galapagos islands develop different shaped beaks?

• Each beak is designed for a different food source

• all of them have the same beak so they can get all the food

• they all have average beaks but only try to eat one type of food

• beak design depends on how well it attracts predators

Beaks that are best adapted to their environment...

• pick up a large variety of food

• can only pick up one type of food

• can pick up a little bit of each type of food

• will die out

According to Darwin's theory of Natural Selection

• organisms pass on their traits

• the organisms better suited to their environment survive and reproduce at higher rates

• organisms produce only a small number of offspring

• a small change in an organism is unlikely to improve their survival

Natural variations begin with...

• random genetic changes such as a mutation

• programmed genetic changes

• behavioral changes

• symbiosis

Barnacles on whales is an example of:

• mutualism

• commensalism

• parasitism

• migration

Mistletoe attaches to trees and steals their nutrients for themselves. This is an example of...

• mutualism

• commensalism

• parasitism

• predator-prey

Which of the following is NOT something dormant animals experience?

• decreased heart rate

• decreased respiration

• decreased body temperature

• growth

Why can bears be found in cold parts of the world and lizards cannot?

• bears maintain a constant body temperature through internal processes while lizards cannot

• they both maintain constant body temperatures but lizards don't have fur

• bears increase their body temperature to stay warm

• they both depend on external sources for heat, but bears have fur