Which one of the following features is unique to animals?

A. Embryonic development
B. Cells organized into tissues
C. Movement associated with muscle tissue and nervous tissue
D. Cells without walls
E. Heterotrophism


Answer: C

Biology & Microbiology

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After organic molecules have been formed in abundance, what is the next step that must occur in the

progression toward a living organism?

a. evaporation of the water the organic compounds are dissolved in b. dehydration reactions linking macromolecule monomers into larger molecules c. increasing availability of organic compounds d. the formation of a semi-permeable membrane e. aggregation of the different organic compounds so all of the pre-cell building blocks are in the same localized region

Biology & Microbiology

With one exception, members of the same

species always share the following things. Select the exception.

a. morphology b. biochemistry c. behavioral traits d. geography e. the same genus

Biology & Microbiology

In which of the following organisms is

genetically engineered human insulin produced?

a. pigs b. E. coli c. humans d. T. aquaticus e. B. thurigiensis

Biology & Microbiology

The cephalic end of an animal is toward its head

____________________ Indicate whether the statement is true or false.

Biology & Microbiology