During a particularly slow afternoon in the lab, you and your colleagues decide to play another round of Whose Heart Is This? The heart you are given has a pair of atria, but only a single, undivided ventricle. What type of animal did this heart belong to before it was given to you?
a. fish
b. reptile
c. amphibian
d. mammal
c. amphibian
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Members of the family Enterobacteriaceae
A. include E. coli, Enterobacter, Salmonella, and Shigella. B. include many medically relevant bacteria. C. primarily reside in the intestinal tract of humans and animals. D. are facultative anaerobes. E. All of the choices are correct.
Convergent evolution
A. explains the morphological similarity yet major genetic differences found between slime molds and fungi. B. refers to two different organisms that develop similar characteristics in adaptation to similar environments. C. explains the structure of lichens. D. refers to the one organism dividing into two. E. explains the morphological similarity yet major genetic differences found between slime molds and fungi AND refers to two different organisms that develop similar characteristics in adaptation to similar environments.
Which organisms obtain energy by oxidizing organic or inorganic substances?
a. auxotrophs b. autotrophs c. chemotrophs d. phototrophs
The discovery of cells and the development of the cell theory would not have been possible without microscopes. Which two factors are important to all types of microscopes?
A) magnification and resolution B) magnification and color enhancement C) magnification and ability to observe live organisms D) magnification and three-dimensional imagery