Staphylococcus and Streptococcus can be easily differentiated in a laboratory by which one of the following?

A) cell shape
B) Gram stain reaction
C) growth in high salt concentrations
D) ability to cause disease
E) glucose fermentation


C

Biology & Microbiology

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Your colleague proposes to test the mechanism of ant navigation by placing a food source 7 meters (m) from the nest. She then takes ants from the nest and places them in a spot that is 4 m from the nest and 3 m from the food source

Based on the previous data, where do you expect the ants to start searching for their nest on their return trip? A) after they have traveled 3 m from the food source B) after they have traveled 4 m from the food source C) after they have traveled 7 m from the food source D) as soon as they leave the food source

Biology & Microbiology

Gonadotropin-releasing hormone regulates

A. follicle-stimulating hormone. B. luteinizing hormone. C. steroid production by the gonads. D. both follicle-stimulating and luteinizing hormones. E. both follicle-stimulating and luteinizing hormones as well as steroid production by the gonads.

Biology & Microbiology

All of the following photosynthetic pigments are found in red algae except:

a. chlorophyll a. b. phycoerythrin. c. fucoxanthin. d. phycocyanin. e. chlorophyll d

Biology & Microbiology

Formation of urine involves filtration, reabsorption and secretion, all of which are done by the bladder.

a. true b. false

Biology & Microbiology