Biology, 21.10.2020 16:01 marissarsmith8205
When an enemy cell is present, a(n) secretes perforins, which bore a hole in the enemy cell membrane.
a. interleukin
b. antibody
c. interferon
d. natural killer cell
e. opsonization
Answers: 1
Biology, 22.06.2019 16:10
The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)
Answers: 2
Biology, 22.06.2019 16:30
In a leaf, dermal tissue a) stores food b) stores carbon dioxide c) releases oxygen into the air d) transports water from the roots
Answers: 1
Biology, 22.06.2019 21:30
Scientists studied reproduction in the new zealand mud snail to answer the question, “are there benefits to reproducing sexually or asexually? ” which of these hypotheses would least likely aid the scientists as they worked to answer the question? sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation. asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring. sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation. asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social
Answers: 2
When an enemy cell is present, a(n) secretes perforins, which bore a hole in the enemy cell membran...
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