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Biology & Geology

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 2 Quiz: DNA Structure, Replication and DNA Repair Enzymes

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1.
The derivative of y = sin(3x) with respect to x is:
3 cos(3x)
-3 cos(3x)
cos(3x)
3 sin(3x)
2.
If f(x) = |x - 3|, the derivative f'(3) at x = 3:
Equals 0
Equals -1
Equals 1
Does not exist because the left-hand derivative (-1) does not equal the right-hand derivative (+1)
3.
In a hydraulic press, the ratio of the cross-sectional area of the large piston to that of the small piston is 50. If a force of 100 N is exerted on the small piston, the maximum force exerted by the large piston is:
2 N
50,000 N
2500 N
5000 N
4.
The adrenal medulla is stimulated to secrete the emergency hormones adrenaline and noradrenaline via:
ACTH hormonal stimulation
Body temperature change
High blood sugar
Rapid and direct sympathetic nervous stimulation in cases of fear, fight, and flight
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