1. Unit 2 Review

2. Use the diagram below to answer this question.
Euglena are single-celled organisms. The flagellum helps the organism move through water. Euglena are similar to plants in the way they obtain their food. Nina kept several euglena in a glass jar. She wondered what would happen if she covered the top half of the jar with black paper and placed it in sunlight. Which is the best prediction of how the euglena will respond to the change in the jar environment?
A. Most of the euglena will move to the bottom half of the jar.
B. Most of the euglena will move to the top half of the jar.
C. The euglena will spread out evenly throughout the jar.
D. The euglena will move back and forth between both halves.

3. Which of the following statements is NOT part of the cell theory?
a.   The most basic component of any organism is the cell.
b.   All cells originate from other cells.
c.   All cells have a nucleus and a cell membrane.
D. All living things are made up of one or more cells.

4. c. All cells have a nucleus and a cell membrane.

5. Which of the following does NOT describe cells?
a.  All cells are surrounded by a cell membrane.
b.  All cells are able to survive on their own.
c.  All cells come from other cells.
d.  All cells contain cytoplasm

6. b. All cells are able to survive on their own.

7. A group of zebra fish swimming together make up a
Ecosystem
Community
Population
Biome

8. The brain and spinal cord are two organs that work together to send electrical impulses throughout the body. Together these two make
Nervous tissue
Nervous system
An organism
Specialized cells

9. All cells have
 A.   a nucleus.
 B. a cell membrane.
 C. mitochondria.
D. a cell wall.

10.   B. a cell membrane.

11. A long term relationship in which one organism benefits and the other is unaffected is called
Parasitism
Commensalism
Mutualism
Predatory

12. b. Commensalism

13. Which of the following is NOT found in animal cells?
a. cell wall
b. cell membrane
c. lysosomes
d. ribosome

14. a. cell wall

15. The organelle in a eukaryotic cell that contains DNA and acts as a control center is the
a. endoplasmic reticulum.
b. ribosome.
c. nucleus.
d. Golgi complex.

16. c. nucleus.

17. A ____ keep(s) the cytoplasm inside and allow nutrients in and waste products out.
a. cell membrane
b. chloroplast
c. nucleus
d. mitochondria

18. a. cell membrane

19. The ____ is an organelle that is found only in plants and algae.
a. ribosome
b. endoplasmic reticulum
c. mitochondria
d. chloroplast

20. d. chloroplast

21. A paramecium (animal-like protist) uses _____________ for movement.
a. cilia
b. contractile vacuoles
c. euglena
d. eyespots

22. a. cilia

23. A cow bird eats the ticks off a cow
A cow bird eats the ticks off a cow. This is an example of _____ between the cow and bird
a. Commensalism c. Parasitism
b. Mutualism d. competition

24. b. Mutualism

25. How do protozoa obtain their energy?
Eat other organisms
b. Break down the remains of dead organisms
c. Produce their own food
d. None of the above.

26. a. Eat other organisms

27. 23. An energy pyramid containing autotrophs and other organisms from a food chain is represented below.
Carnivores would most likely be located in
level I, only
(B) level I and level II
(C) level III, only
(D) level II and level III

28. (C) level III, only

30. D.

31. Which of the examples below can BEST be described as mutualism between animals?
a. a tapeworm lives in the intestine of a bird and consumes the food that the bird has eaten b. mountain lions and wolves fight eachother for the same deer c. a bird eats parasites off of a rhinoceros while the rhinoceros provides protection to the bird d. rats live in the garbage dump of a town and rarely interact with people

32. 5. Roberto feeds his pet iguana a mixture of salad greens, carrots, squash, crickets, and worms as part of his regular diet. What type of consumer is the iguana?
a. herbivore b. carnivore c. omnivore d. decomposer

33. Which of these cells is a Plant Cell?

34. Cell 1

35. Which of the following is a biotic factor?
A herd of elephants
Water salinity
Humidity of the air
The amount of fertilizer in the water

36. Which of the following organisms would have a chloroplast in their cells?
An elephant
A paramecium
Algae
E-coli

37. A tapeworm that steals the nutrients from the food it’s host eats would be an example of
Commensalism
Parasitism
Mutualism
Predator/Prey Relationship

38. The following is an example of what type of relationship?
a) Parasitism b) mutualism c) commensalism d) none of these

39. What diagram shows energy lost as you move up a food chain?
Food web
Energy Pyramid
symbiosis

40. If a cell had no ribosomes, it would be unable to
Break down wastes in the cell
Manufacture proteins
Undergo cellular respiration
Release energy in the cell

41. Which letter shows where cellular respiration takes place?D B A C

42. Which letter shows an organelle that can only be found in a plant cell?

43. Most Protist are Prokaryotic Multicellular Unicellular
None of the Above