Spiders are “blue bloods” because their __________ proteins contain copper instead of iron
a. oxygen-binding
b. ventilation
c. open circulatory
d. atrial
A
Biology & Microbiology
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A vector is a small segment of DNA that a gene of interest is inserted into for cloning
Indicate whether the statement is true or false
Biology & Microbiology
Two boys survived 6 days at sea without drinking any fresh water. Their plasma antidiuretic hormone (ADH) levels should be ________
a. about the same as normal b. higher than normal c. zero after 6 days d. lower than normal
Biology & Microbiology
Eudicot embryos transfer nutrients from endosperm
to their two __________. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Which vaccine-preventable disease caused by an RNA virus has been nearly eradicated?
A) measles B) influenza C) hantavirus D) polio E) rotavirus
Biology & Microbiology