Which protist group includes the water molds, diatoms, and brown algae?
A) Euglenids
B) Diplomonads
C) Slime molds
D) Stramenopiles
E) Excavates
D
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Tinea pedis is
A. an infection of scalp hair. B. known as "jock itch." C. known as "athlete's foot." D. a beard infection.
The most prominent known role in the opening and closing of stomata is played by____ ions
a. Ca2+ b. Cl? c. K+ d. NH4+ e. Na+
What is the basis of codominance?
A) There is only one allele for a gene. B) Each allele of a gene produces a protein that functions to create a trait. C) One allele of a gene encodes a protein, and the other allele is nonfunctional. D) One gene has many alleles. E) One allele can have many effects on a phenotype.
In lab, a student observes some dull, wrinkled brown colonies growing on their agar. They Gram stain the sample and observe single bacilli. Their blood agar does not reveal any hemolysis while their MSA has growth and fermentation. Using the following table and the given observations, determine which microorganism this would most likely be.Bacilli B. cereus B. subtilis Colony morphology Dull, frosted colonies Dull, wrinkled colonies cream to brown colors Microscopic arrangement Chains Single bacilli Catalase + + Blood agar Beta Gamma Mannitol salt agar - + growth and + fermentation Pseudomonas P. aeruginosa Catalase + Oxidase + Motile + Blood agar Beta Glucose fermentation + Escherichia E. coli Lactose fermentation + Motile + Citrate
fermentation - Urease - Catalase + A. E. coli B. B. subtilis C. Pseudomonas aeruginosa D. B. cereus