Response to a stimulus, such that the effect of the stimulus is counteracted, is called a ________ feedback.
A. complementary
B. complex
C. negative
D. positive
Answer: C
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Which group of molecules is involved in stopping the cell cycle?
a. positive regulators b. monitory regulators c. negative regulators d. cessation regulators
__________ or __________ extend from many prokaryotic cells and serve in attachment and motility
ANSWER: Pili; flagella Fill in the blank(s) with the appropriate word(s).
The four different human blood types are caused by how many different alleles? What are the alleles?
What will be an ideal response?
The risk of cancer can be reduced by ________
A) decreasing fruit intake because fruits can be carcinogenic B) smoking more because nicotine can kill cancerous cells C) avoiding unnecessary medical x-rays D) increasing saturated fats in the diet