STUDY GUIDE: DFA #3

What is the function of mitochondria?

• control center of the cell

• creates protein

• changes glucose into usable energy

• protects the cell

Why do bears hibernate during the winter?

• To increase their body fat during cold periods.

• To give their fur time to grow longer and thicker.

• To conserve energy usage during winter.

• To rest after a summer of high activity.

When a tick feeds on a person's blood and transmits Lyme disease, the relationship between the human and tick is

• parasite/host

• predator/prey

• mutualistic

• commensalism

During a hiking trip in a dense forest, which two of the following would you classify as consumers?

• Grass

• Brown Bear

• Blueberry bush

• Maple tree

• Grasshopper

Which of the following is an example of a decomposer in an ecosystem?

• A sunflower growing in a garden.

• A rabbit eating clover from a yard.

• An osprey catching fish from a river.

• A mushroom growing on a log.

In the relationship between the sea anemone and the clownfish, the clownfish lures other fish so the sea anemone can catch and eat them. In return the clownfish gets a safe place to live as well as leftover food. This relationship best illustrates which type of symbiotic relationship?

• Mutualism

• Commensalism

• Capitalism

• Parasitism

Wolves hunt together and the prey is shared with the pack. This method of hunting is an example of:

• Territorial Imperative

• Parasitism

• Competition

• Cooperation

Which of the following is an example of a producer-consumer relationship?

• Worm → Bird

• Leaf → Tree

• Fish → Bear

• Grass → Deer

Which of the following is true about prokaryotes and eukaryotes?

• Prokaryotes cannot make their own food and eukaryotes can.

• Eukaryotes do not have a nucleus and prokaryotes do have a nucleus.

• Prokaryotes do not have a nucleus and eukaryotes do have a nucleus.

• Prokaryotes cannot reproduce and eukaryotes can reproduce.

Imagine a local lake near a farming community. The lake water turns noticeably greener over the summer. What is the primary reason for this sudden increase in green coloration?

• The increase of carbon dioxide from the fish in the lake

• The overabundance of sewage and fertilizer runoff into the lake