One difference between plants and animals is that plants are
A.) autotrophs and animals are heterotrophs
B.) eukaryotic and animals are prokaryotic
C.) prokaryotic and animals are eukaryotic
D.) heterotrophs and animals are autotrophs
Ans: A.) autotrophs and animals are heterotrophs
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What is the term for immunity gained by the transfer of antibodies across the placental barrier?
A. passive immunity B. acquired immunity C. humoral immunity D. cell-mediated immunity E. auto immunity
Enzyme's control all the cell's _____ ______.
Fill in the blank(s) with the appropriate word(s).
What are some of the dangers associated with the use of organophosphate pesticides that might be of concern for humans? (Organophosphates inhibit acetylcholinesterase.) What are some ethical concerns related to their use?
What will be an ideal response?
A magnesium ion contains twelve protons and ten electrons. A chloride ion contains seventeen protons and eighteen electrons. Given this information, the chemical formula for magnesium chloride is
A. MgCl. B. Mg2Cl. C. MgCl2. D. Mg2Cl2.