The evolutionary link between unicellular and multicellular life was probably __________.

A. development of a specialized feeding mechanism
B. development of a specialized method of waste disposal
C. development of colonial forms where unicellular protists stuck together
D. development of a specialized method of gas exchange


C. development of colonial forms where unicellular protists stuck together

Biology & Microbiology

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Eggs have receptors that recognize surface proteins on sperm of their own species. This illustrates ____

a. behavioral isolation b. gametic isolation c. hybrid breakdown d. hybrid inviability e. hybrid sterility

Biology & Microbiology

What is the difference between embryo cloning and adult cloning?

What will be an ideal response?

Biology & Microbiology

____ is a cell engulfing large solid materials, and ____ is a cell engulfing materials dissolved in solution. 

A. Endocytosis; exocytosis B. Exocytosis; endocytosis C. Phagocytosis; pinocytosis D. Pinocytosis; phagocytosis

Biology & Microbiology

Which of the following foods would have the most fiber?

a. Kidney beans b. English muffins made with enriched flour c. Orange juice d. Corn flakes

Biology & Microbiology