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20. Macrophages use MHC class I molecules directly in their defense strategy.

51. What statement of the cell theory is correct?

30. From the experimental design lab:    The number of dead cells is one of the variables in the experiment.  What type of variable is it?

59. During _____________, four haploid, non-identical nuclei are formed  and during _______________, nuclear membranes form around chromosomes that still contain sister chromatids.

8. Gene flow means most nearly the same as:

6. All of the following statements are true about mutations EXCEPT:

5.1.2 a) Calculate the sum of the number of protons, neutrons, and electrons. Type your calculation and final answer. b) Is 3 a factor of the answer you got? Type YES/NO. c) State whether your answer is a prime or composite number. (4)

3.9 Calculate the quotient of 60 and 15. Choose the correct answer below: (1)

4.5 Type >,< or = in: 0,08 [ans1]   (8/100) (1)

3.10 In the number sentence: 525 ÷ 25 = 21 The divisor is: (1)