Antibiotics are effective against covid 19
a. true
b. false
Ans: b. false
Biology & Microbiology
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What ion is mainly responsible for seawater being slightly alkaline?
a. Carboxylic acid b. Carbon dioxide c. Bicarbonate d. Nitrogen
Biology & Microbiology
The process of moving water through a plant by transpiration works because water molecules stick to each other with
A. adhesion. B. hydrogen bonds. C. osmosis. D. ionic bonds. E. turgor pressure.
Biology & Microbiology
The DNA in a prokaryotic cell is in the ________ region of the cytoplasm
Fill in the blank(s) with correct word
Biology & Microbiology
Neural crest cells:
a. originated in the first chordates. c. migrate during development. b. develop only into neurons. d. produce only beaks in birds.
Biology & Microbiology