Drag the labels onto the diagram to identify the parts of the compound microscope (1 of 2). (figure 3.1)
What will be an ideal response?
left column:
arm
mechanical stage
right column:
ocular lense
rotating nosepiece
stage
objective lenses
condenser
iris diaphragm lever
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Which of the following is NOT a common characteristic of a negative feedback system?
a) regulates conditions in body that remain fairly stable over long periods b) important in maintaining homeostasis c) involves control centers in the nervous or endocrine systems d) stimulates changes that reverse the direction of the stimulus e) usually requires an event outside the feedback system to shut it off
Homeostasis is maintained by ____________________ mechanisms
Fill in the blank(s) with correct word
Which of the following does not increase the risk of atherosclerosis?
A. Sedentary lifestyle B. A diet high in cholesterol C. Consistent exercise D. Stress E. Smoking
In males, meiosis involves ________ cycle(s) of cell division and produces ________ cells, or gametes, each containing 23 individual chromosomes.
A) one; four B) two; four C) one; six D) two; two E) four; four