The earliest fossils found appear to be from the domain Bacteria. From which group of bacteria are these fossils?
a. Staphylococcus
b. nitrogen-fixing bacteria
c. cyanobacteria
d. various lactobacilli
c. cyanobacteria
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The process whereby naked DNA is absorbed into a bacterial cell is known as:
A) transcription. B) transduction. C) transformation. D) translation.
Features that are useful for identification of fungal species include
A. presence of a membrane bound nucleus. B. size, shape color and number of spores. C. ability to produce chlorophyll a. D. All of the choices are correct.
In addition to its white coloration, beluga whales possess another unique characteristic which is: a. the ability to forage in groups
b. the ability to bend its neck. c. the formation of a tusk d. the presence of two teeth.
Step 2 in the accompanying figure is accomplished by an influx of:
a. Ca2+
b. Na2+
c. K+
d. Na2+
e. K+