Which of the following is an example of a suspension feeder?
a. a whale
b. a mosquito
c. a snake
d. a lamprey
Ans: a. a whale
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A phragmoplast functions to:
A. stimulate the growth of the microtubule spindle. B. anchor microtubules to sister chromatids. C. breakdown the nuclear envelope. D. form a new cell wall.
Which of the following is in the correct order from smallest to largest structures?
a. myosin head, sarcomere, myofibril, muscle fiber b. sarcomere, myosin head, muscle fiber, myofibril c. myofibril, myosin head, sarcomere, muscle fiber d. muscle fiber, sarcomere, myofibril, myosin head
During which stage(s) of human development are all major organs formed?
a. embryonic, fetal, and postnatal periods b. fetal period only c. embryonic period only d. both the embryonic and the fetal periods
After one conducts a critical experiment, what is the next step in the scientific process?
A) Make observations. B) Formulate a hypothesis. C) Draw conclusions, and make revisions. D) Devise a testable prediction. E) Formulate a null hypothesis.