Who introduced the "two-part" system (genus and species) that biologists use to name organisms?
A) Aristotle B) Linnaeus C) Whittaker D) Woese E) Darwin
B
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Over evolutionary time, flowering plants have evolved colors, odors, and nectar that attract pollinating insects and the
insects have evolved mechanisms that detect the changes in plants and to better collect pollen. This is an example of ____.
a. allopatric speciation b. phylogenetic change c. coevolution d. a key innovation e. sympatric speciation
Four of the five answers listed below are characteristics of most veins. Select the exception
a. blood volume reservoir b. contain valves c. low resistance-transport tubes d. transport oxygen e. low blood pressure
Which of the following is exemplified by a pea tendril contacting a string or wire and coiling around it for support?
A) gravitropism B) photoperiod C) thigmotropism D) phototropism
In a eukaryotic cell, within which organelle does cellular respiration occur?
a. ribosome b. chloroplast c. nucleus d. mitochondria