The whorl of a flower that consists of all the petals is the
A. stamen.
B. carpel.
C. stigma.
D. calyx.
E. corolla.
E. corolla.
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Some viruses consist only of a protein coat surrounding a nucleic acid core. If you wanted to radioactively label the nucleic acids separately from the protein, you would use radioactive _____
A) sulfur B) carbon C) nitrogen D) phosphorus
How many nucleotides in the human genome
sequence change every decade?
a. 40 b. 50 c. 60 d. 70 e. 80
The feature of Darwin's finches that shows
variation is a. feet. b. beaks. c. feathers. d. structure of eggs. e. all of these.
Approaching new information with a questioning attitude and looking for evidence to support the claim involves
A) inductive reasoning. B) the process of predicting an outcome. C) deductive reasoning. D) curiosity. E) skepticism.