The primate fossil named Lucy was ____.
A. a Neanderthal
B. an australopith
C. a Denisovan
D. a prosimian
E. a modern human
Answer: B
Biology & Microbiology
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The word gymnosperm means ____
a. covered seed b. active sperm c. naked egg d. naked seed e. covered sperm
Biology & Microbiology
Energy losses are multiplied in successive energy transfers in a food web
Indicate whether the statement is true or false.
Biology & Microbiology
There are how many different kinds of amino acids
in proteins? a. 3 b. 6 c. 12 d. 20 e. 28
Biology & Microbiology
Heavy metals work by
A. inactivating proteins. B. binding to DNA. C. mutating DNA. D. dissolving the cell wall. E. rupturing the cell membrane.
Biology & Microbiology