Leaves
a. intercept sunlight.
b. of some species form toxins.
c. actively orient relative to the sun to favor
optimal position.
d. come in simple and compound forms.
e. fit all of these descriptions.
Answer: e
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The steps of the scientific method, in the correct order, are:
A) design experiments, draw conclusions, collect data, interpret results, make observations, and test the hypothesis. B) make observations, formulate the hypothesis, design experiments, collect data, interpret results, and draw conclusions. C) collect data, interpret results, test the hypothesis, design experiments, make observations, and draw conclusions. D) collect data, interpret results, test the hypothesis, make observations, and design experiments. E) none of the above
Given that the atmospheric concentration of CO2 is approximately 300 ppm, is photosynthesis in the field limited by the concentration of CO2?
a. No. b. Yes
Steroid hormones bind with G-protein linked receptors in plasma membranes of target cells. Indicate whether the statement is true or false
The process of translation, whether in prokaryotes or eukaryotes, requires tRNAs, amino acids, ribosomal subunits, and which of the following?
A. polypeptide factors plus GTP B. polypeptide factors plus ATP C. polymerases plus GTP D. signal peptides plus release factor E. SRP plus chaperones