Biology, 25.01.2020 01:31 morrowdrew
Cells of the immune system are able to respond to the presence of invading organisms because they recognize the?
a. antigens on invaders
b. antibodies on pathogens
c. dna pattern in the nuclei of viruses
d. antibodies released from microbes
Answers: 2
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Male satin bowerbirds build bowers like the one shown below. they decorate the bowers with brightly colored blue objects in order to attract females. male bower birds attract mates with their a. feathers b. looks c. behavior d. songs
Answers: 2
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