(1 point) Base your answer to the following question on the
graph below and on your knowledge of biology
I
II
IV
Relative Rate of Enzyme Action
10 20 30 40 50 60 70
Temperature (°C)
What is the optimum temperature for the enzyme?
a
0°C
60°C
b
С
37°C
55°C

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.