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
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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
Why do you suppose cytokinesis generally occurs in the cell’s midplane?
What will be an ideal response?
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
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