Which of the following is a population? 

A. all the different species of insects in a woodlot
B. all the sugar maple trees in a woodlot
C. all the carnivores in a woodlot
D. all the wildflowers in a woodlot


B. all the sugar maple trees in a woodlot

Biology & Microbiology

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A squirrel visits your bird feeder every day, and has discovered that if it jumps onto the feeder, seeds will fall on the ground that it can eat. This learned behavior is known as

A. operant conditioning. B. classical conditioning. C. habituation. D. observational learning. E. imprinting.

Biology & Microbiology

In which structure do cilia covered in mucus trap foreign particles?

a. urinary tract b. reproductive tract c. arteries d. respiratory tract e. digestive tract

Biology & Microbiology

By the end of the first trimester of pregnancy, all of the major ____________________ have formed and are

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

Biology & Microbiology

What type of isolation technique is most effective for the majority of applications?

A. pour plate B. streak plate C. spread plate D. loop dilution E. culture plate

Biology & Microbiology