A flap of tissue called the __________ directs air

through the __________, the opening to the
__________ (windpipe). Fill in the blank(s) with the appropriate word(s).


Answer: epiglottis; glottis; trachea

Biology & Microbiology

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If a plant species with 2n = 14 forms an allopolyploid with a plant species with 2n = 18, what would be the likely diploid (2n) number of the allopolyploid?

A) 16 B) 28 C) 32 D) 36

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The ____ is a channel for urine to flow from a

kidney to the urinary bladder. It is labeled as ____ on the above diagram.

a. urethra; B b. urethra; D c. ureter; D d. ureter; B e. ureter; C

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Every year, incoming solar energy is __________

the energy that is stored in all known fossil reserves. a. half b. one-fourth c. twice d. five times e. ten times

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Why do you suppose cytokinesis generally occurs in the cell’s midplane?

What will be an ideal response?

Biology & Microbiology