A bee feeding from a flower is an example of what?

a. symbiosis
b. predation
c. herbivory
d. parasitism


a. symbiosis

Biology & Microbiology

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The ________ are drugs that deposit in developing teeth and cause a permanent brown discoloration.

A. tetracyclines B. penicillins C. streptomycins D. cephalosporins E. macrolides

Biology & Microbiology

I tried to sequence a DNA fragment and ended up with the trace pattern shown in the figure above

What is the most likely cause of this result?

a. I forgot to add the ddCTPs to the sequencing reaction. b. I forgot to add the normal dCTPs to the sequencing reaction. c. I forgot to add DNA polymerase to the sequencing reaction mix. d. The fluorescent tags for the ddGTPs are degraded. e. The polyacrylamide gel didn't polymerize properly and is altering the migration patterns of the DNA fragments.

Biology & Microbiology

Which of the following hormones stimulates the release of a future egg cell by the ovaries?

A) luteinizing B) follicle-stimulating C) oxytocin D) prolactin

Biology & Microbiology

What does evolutionary fitness measure?

A) physical health B) longevity C) relative reproductive success D) population size

Biology & Microbiology