Sponges acquire food by ________ as water passes through
Fill in the blank(s) with correct word
filter feeding
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What type of monomer does ATP represent?
A. fatty acid B. glycerol C. nucleotide D. amino acid E. monosaccharide
What occurs after a pollen tube penetrates an ovule?
a. Other pollen tubes are attracted to that ovule. b. That pollen tube continues on to another ovule. c. Other pollen tubes are prevented from gaining access to that ovule. d. Other pollen tubes can penetrate that ovule more easily.
Briefly explain how the body's first line of defense against pathogens works
What will be an ideal response?
Which of the following best defines a strain in microbiological terms?
A) a pure culture that is not totally identical to other cultures of the same species B) a group of organisms with a limited geographical distribution C) a mixed population of cells,genetically distinct, but with highly similar phenotypic characteristics D) groups of cells all derived from and identical to a single parent species E) same as a species