| Use the table at the right and your knowledge of science to answer the questions which follow. |  |
1. Which statement is not part of the cell theory?
(a.) All living things are made of cells
(b.) All cells are produced from other cells
(c.) Cells are the basic unit of structure and function in living things
(d.) Cells can only be seen with a microscope
2. The products of photosynthesis are
a. carbon dioxide and sugars b. carbon dioxide and water
c. sugars and water d. sugars and oxygen
3. If two hybrid tall pea plants are crossed, what is the probability that the offspring will be hybrid tall?
a. 0 percent b. 50 percent c. 75 percent d. 100 percent
4. In the hybrid tall cross of problem 4, what is the probability that the offspring will have the tall phenotype?
a. 25 percent b. 50 percent c. 75 percent d. 100 percent
5. Genetic disorders are caused by changes in
a. diet b. activity level c. DNA d. climate
6. The gradual change in a species over time is called
a. evolution b. adaptation c. variation d. isolation
7. The mechanism that Darwin used to explain evolution is
a. overproduction b. competition c. variation d. natural selection
8. Over time, unfavorable variations tend to
a. accumulate b. stay the same c. disappear
d. become enlarged
9. Support and transportation are the functions of a plant's
a. leaves b. roots c. vascular tissue d. cell walls
10. From smallest to largest, the body's levels of organization are
a. cell, organ, tissue, and organ system
b. cell, organ, organ system, and tissue
c. tissue, cell, organ, and organ system
d. cell, tissue, organ, and organ system
11. A group of similar cells that perform the same function is called a(n)
a. organ b. tissue c. organ system d. cell
12. Reducing exposure to the sun's ultraviolet radiation reduces the risk of
a. diabetes b. skin cancer c. heart disease d. blindness.
13. Both mechanical and chemical digestion begin in the
a. mouth b. esophagus c. stomach d. small intestine
14. Absorption of food takes place in the
a. stomach b. liver c. small intestine d. large intestine
15. Substances are exchanged between the blood and body cells in the
a. arteries b. veins c. capillaries d. heart
16. The blood component that helps form clots is the
a. platelets b. white blood cells c. plasma d. red blood cells
17. The process in which oxygen and glucose undergo chemical reactions inside cells is a. breathing b. respiration c. gas exchange
d. excretion
18. The tiny sacs of lung tissue specialized for the exchange of gases between air and blood are the a. alveoli b. bronchi c. capillaries d. livers
19. Most harmful ultraviolet light is absorbed by atmospheric
a. ozone b. water vapor c. oxygen d. carbon dioxide
20. A vaccine is given to stimulate the body's production of
a. antigens b. phagocytes c. antibodies d. lymphocytes
21. The chemical product of an endocrine gland is called a
a. target cell b. hormone c. zygote d. chromosome
22. Fertilization results in the formation of a fertilized egg or
a. zygote b. embryo c. placenta d. fetus
23. An embryo is linked to its mother and receives nutrients from her
through the a. amniotic sac b. uterus c. placenta d. ovaries
24. A mature egg is released into an oviduct in the process called
a. fertilization b. ovulation c. menstruation d. reproduction
25. In which structure does the embryo develop in humans?
a. stomach b. fallopian tube c. ovary d. uterus
26. Which would NOT be a function of the human ovary?
a. the production of eggs b. the production of female gametes
c. the production of estrogen d. the production of testosterone
Base your answers to questions 27 through 30 on the information below
and your knowledge of the living environment.
A red snapdragon flower crossed with a white snapdragon flower
produces a pink snapdragon flower.
27. What would the results be if two pink snapdragon flowers were crossed?
(Show your results with a punnett square.)
28. What is the percentage of pink flowers resulting from this cross?
29. What is the percentage of white flowers resulting from this cross?
30. Using one or more complete sentences, explain how the punnett square
represents the process of sexual reproduction.
Use the information below to answer questions 31 through 35.
| Use the table at the right and your knowledge of science to answer the questions which follow. | |
31. Name two producer organisms in this food web.
32. Name three carnivores in this food web.
33. Name three herbivores in this food web.
34. Explain the difference between a producer and a consumer organism in a food web.
35. Explain the difference between a food web and a food chain.
| Use the diagram at the right and your knowledge of science to answer the questions that follow. |  |
36. Identify each of these gametes or sex cells.
37. If these two cells united what would be formed and would gender would it be?
38. List two differences between the structure of the egg and sperm.
39. How does the chromosome number of the egg or the sperm compare to that of normal body cells?
Use your knowledge of science to answer the following questions.
39. After the formation of the zygote, during which months of pregnancy do the internal organs begin to form in the fetus?
40. During which portion of the pregnancy does most of the growth of the fetus occur?
41. All organs and body features in the embryo are normally developed how long after the zygote is formed? a. first month b. third month c. fourth month d. sixth month
| Use the diagram below and your knowledge of science to answer questions 42 and 43. 42. Which kind of reproduction is shown by the organism in the diagram at the right? 43. List two reasons for the answer you gave in question 42 above. (2) |
 |
44. List two differences between meiosis (the cell division type which forms gametes .. egg or sperm) and mitosis (the cell division type which forms body cells) in reference to changes in chromosome numbers and variations in the cells each process forms. (2)
| Use the diagrams below at the right containing choices and pictures of human body systems and your knowledge of
science to answer the questions 45 through 48 which follow.
45. Which two systems are pictured in diagram (1)? 46. The urinary system would be found in diagram _______. |
 |
49. List one similarity and one difference between reproduction and development in humans and frogs. (2)
50. What is metamorphosis? List two organisms which do this in their development. (2)
Use the diagram below and your knowledge of science to answer the questions 51
through 54 which follow.
51. What process is occurring at arrow A?
52. How does the genetic information in each cell of the hollow ball stage and the four cell stage of development following arrow B compare with the two cell stage before arrow B?
53. Where the multicellular structure indicated by arrow X begin to develop in humans?
54. Where does process A occur in humans?
55. What disease develops from uncontrolled mitotic cell division?
56. Why do fossils tend to be found in sedimentary rock but not in igneous or metamorphic rock?
| 57. Using one or more complete sentences, describe the information being provided by the graph at the right. |
 |
Use the information provided below and your knowledge of science to answer questions 58 which is a four part question that follows.
A student placed 10 protozoans of species A and 10 protozoans of species B together in a culture medium. The student counted the number of each species for several days and recorded the results in the data table below.
58. Using the information in the data table, construct a line graph on
the grid, following
the directions below.
(a.) Mark an appropriate scale on each labeled axis.
(b.) Plot the data for species A on the grid. Surround each point with a
small circle and connect the points.
(c.) Plot the data for species B on the grid. Surround each point with a
small circle and connect the points.
(d.) Using one or more complete sentences, state a possible reason for the decrease in the population of species B between days 1 and 6
To view some answers to this review activity, click here!