Download Quiz 1-‐ Ecological Relationships

Biology III Ms. Chen Name: Date: Quiz 1-­‐ Ecological Relationships Multiple Choice (8 points)
Directions: Circle the best answer.
1. Ticks carry bacteria that cause Lyme disease. Ticks do not get Lyme
disease, but they can transfer the bacteria to humans, who can get the
disease.
Which of the following statements best describes the relationships among
the bacteria, the ticks, and the humans?
A.
The relationship between the bacteria and the ticks is competition, and the
relationship between the ticks and the humans is predation.
B.
The relationship between the bacteria and the ticks is competition, and the
relationship between the ticks and the humans is parasitism.
C.
The relationship between the bacteria and the ticks is commensalism, and the
relationship between the ticks and the humans is parasitism.
D. The relationship between the bacteria and the ticks is commensalism, and the
relationship between the ticks and the humans is predation.
2. Tapeworms are sometimes found in the small intestines of sheep. A
tapeworm attaches to the intestinal wall using suckers and then absorbs
nutrients from the sheep’s intestine.
Which of the following terms describes the relationship between the
tapeworm and the sheep?
A.
competition
B.
herbivory
C.
parasitism
D.
predation
3. Many lichens are composed of fungi and algae. The fungi get sugars from
the algae, and the algae get water, minerals, and proteins from the fungi.
Which of the following terms best describes the relationship between the
organisms in the lichens?
A.
commensalism
B.
C.
competition
mutualism
D.
parasitism
4. The ecological relationship between a hawk and a rabbit is the same type
of relationship as that between
A. a tick and a deer.
B.
a frog and an insect.
C.
a mouse and a chipmunk.
D.
a bee and a flowering plant.
Short Answers (5 pts)
Directions: Answer 1 of 2 questions.
How do ecological relationships shape the marine ecosystem? Use at least
two examples to explain your answer.
Why is it important to identify and understand ecological relationships?
Use at least two examples to explain your answer.
The following section focuses on the effects of a parasitic roundworm on moose and white-tailed deer.
Read the information below and use it to answer the four multiple-choice questions and one
open-response
that
follow.
Openquestion
Response
(10
pts)
Directions: Read the background information carefully and all the
questions on page 6.
Forest and wetland ecosystems in Canada and parts of the northern United States are home to moose,
Alces alces. The illustration below shows a moose and some of the plants and other animals found in its
typical habitat.
Spruce tree
White-tailed deer
Moose
Cattail
Snail
Roundworm
Milfoil
One serious problem for moose is a disease called moose brainworm. Effects of the disease include aimless
walking in circles, poor coordination and balance, weakness, and paralysis of the legs. Many cases of the
disease result in death. The disease is caused by a parasitic roundworm, Parelaphostrongylus tenuis. The
life cycle of this roundworm involves snails, white-tailed deer, and moose, as shown in the diagrams on the
next page. Of these organisms, only the moose gets sick from infection by the roundworm.
8
Biology
Session 1
Roundworm Life Cycle Diagrams
Roundworm
larvae enter snail.
Larvae
pass in waste.
Roundworm
larvae enter snail.
Deer eats snail.
Moose eats snail.
Larvae are
coughed up
and swallowed.
Eggs migrate to
lungs and hatch
into larvae.
Larvae migrate
to spinal cord.
Adults migrate
to brain
and lay eggs.
Larvae migrate
to spinal cord
and brain.
Moose brainworm
disease symptoms
begin.
The introductory information describes one relationship between
organisms in the illustration: parasitism.
All the organisms pictured in this habitat interact in other ways as well.
a. Describe one example of competition between the organisms in the
illustration. Name the organisms involved, describe their interaction,
and explain why their interaction is considered competition.
b.Describe one example of commensalism between the organisms in the
illustration. Name the organisms involved, describe their interaction,
and explain why their interaction is considered commensalism.
Bonus: According to the homework reading from last week, explain why the white deer population has become a nuisance.