Nitrogen deficiency usually causes plant leaves to turn ___________

Fill in the blank(s) with the appropriate word(s).


Answer: yellow

Biology & Microbiology

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Which of the following describes when a species that is not divided by any geographic barrier evolves into separate species within the same location?

a. gene flow b. founder effect c. sympatric speciation d. allopatric speciation

Biology & Microbiology

The first antibiotic to be utilized was

A) vancomycin. B) quinine. C) penicillin. D) salvarsan. E) sulfonamides.

Biology & Microbiology

A permanent, inheritable change in the genetic information is called a(n)

A. translation. B. alteration. C. mutation. D. regeneration. E. transcription.

Biology & Microbiology

Upon observing the 12 types of finches he encountered on the Galápagos Islands, Charles Darwin knew immediately that they were closely related.

a. true b. false

Biology & Microbiology