Molecular hydrogen is an example of which type of molecule?
a. polar covalent
b. nonpolar covalent
c. ionic
d. coordinate covalent
e. network
B
Biology & Microbiology
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The primordial soup is not organic-rich
a. True b. False Indicate whether the statement is true or false
Biology & Microbiology
Which of the following results in a stable population?
a. higher birth than death rates b. equal birth and death rates c. lower birth than death rates d. no births while death remains constant
Biology & Microbiology
Why doesn't a tapeworm have a mouth on its scolex?
A. The mouth is on the proglottids. B. The mouth is located at the end of the pharynx. C. Tapeworms use a radula instead of a mouth to feed. D. Endoparasites don't need a mouth.
Biology & Microbiology
mitochondria and chloroplasts may have arisen through
What will be an ideal response?
Biology & Microbiology