The scientific method includes all of the following except ________.
A. experimentation
B. publication
C. observation
D. hypothesis
Answer: B
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Cilia and flagella bend because of _____
A) conformational changes in ATP that thrust microtubules laterally B) a motor protein called radial spokes C) the quick inward movements of water by osmosis. D) a motor protein called dynein
During the process of transcription _____ is being turned into ______.
a. tRNA; DNA b. rRNA; DNA c. DNA; mRNA d. DNA; tRNA
Which of the following is the site where
mature sperm are stored? a. ureter b. urethra c. vas deferens d. bulbourethral gland e. epididymis
Which of the following is NOT a characteristic of viruses?
A. they are visible with a light microscope. B. they are acellular. C. they are composed of genetic material and protein. D. they are typically smaller than prokaryotic cells. E. they are obligatory parasites.