A flood that separates a population of frogs onto opposite sides of a lake is an example of a vicariance event that may result in allopatric speciation.

Indicate whether the statement is true or false.


Ans: True

Biology & Microbiology

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In the diagram of a root tip shown above, the item labeled "1" is the

a. quiescent center. b. zone of cell division. c. zone of elongation. d. root cap. e. zone of maturation.

Biology & Microbiology

Which of the following is referred to as a hollow ball of cells?

a. cleavage b. egg c. gastrula d. zygote e. blastula

Biology & Microbiology

During which phase does transcription stop, and the DNA begin to appear grainy and start to condense?

a. interphase b. early prophase c. prophase d. anaphase e. early anaphase

Biology & Microbiology

Anions are _____ charged ions and cations are _____ charged ions

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

Biology & Microbiology