____ have no representative organisms that produce amniotic eggs. 

A. Mammals
B. Amphibians
C. Reptiles
D. Birds


B. Amphibians

Biology & Microbiology

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The process of transpiration is driven by

a. passive transport. b. sunlight. c. root pressure. d. upward pressure as sugar is forced into the roots. e. pumping by the xylem cells.

Biology & Microbiology

The idea that behaviours (e.g. eating and drinking) are motivated by their anticipated pleasurable effects

What will be an ideal response?

Biology & Microbiology

Enzymes work by lowering the ________ energy of a reaction.

a) kinetic b) potential c) released d) activation

Biology & Microbiology

Phenylketonuria is an example of a genetic disease in which

a. a single enzyme is not functional. b. inheritance is sex-linked. c. two parents without the disease cannot have a child with the disease. d. mental retardation always occurs, regardless of treatment. e. a transport protein does not work properly.

Biology & Microbiology