The product(s) in the Bile Esculin Agar is (are)

A. Bile salts & esculin
B. Ferric citrate
C. Bile salts only
D. Esculin
E. Esculetin


Ans: E. Esculetin

Biology & Microbiology

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You go for another hike in the forest and wind up back at the same population of 100 flowering plants. You notice that one individual of the population grows in full shade, and all the others grow in at least partial sun

You take a leaf sample from the individual in the shade, sequence its DNA, and notice that the individual is heterozygous. There is a mutation in the LLT gene (the mutant is designated LLT-s). t or f: This population can evolve. t or f: This population can only evolve through genetic drift. t or f: This population can only evolve through natural selection. What will be an ideal response?

Biology & Microbiology

Choose the function that does not characterize the vertebrate circulatory system.

A. protection B. elimination C. regulation D. transportation

Biology & Microbiology

The posterior end of the neural tube will develop into the brain.

Answer the following statement true (T) or false (F)

Biology & Microbiology

As predator and prey species acquire new adaptations to help them survive the constant "arms race" between them, what evolutionary phenomenon is occurring?

A) Artificial selection B) Competition C) Coevolution D) Sexual selection E) Genetic drift

Biology & Microbiology