At the time Charles Darwin sailed on the HMS Beagle, __________.

Fill in the blank(s) with the appropriate word(s).


Ans: several biologists had proposed that species might change over time, but none had suggested a convincing mechanism that might cause the change

Biology & Microbiology

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Removal of environmental pollutants using microorganisms is called ________.

What will be an ideal response?

Biology & Microbiology

The urinary bladder, identified as ____ in the accompanying diagram, is separated from the ____ by a sphincter

a. A; ureter b. C; ureter c. A; urethra d. C; urethra e. A; urethra

Biology & Microbiology

Chart the path of urine from the blood to the outside of the body. What will be an ideal response?

Biology & Microbiology

All of the following are functions of the cell membrane EXCEPT:a

transmitting signals. b. participating in energy transfer. c. being freely permeable to all substances. d. regulating the passage of materials. e. participating in chemical reactions.

Biology & Microbiology