Which of the following characteristics do all animals share?

A. They are multicellular prokaryotes.
B. They are single-celled eukaryotes.
C. They are multicellular eukaryotes.
D. They are single-celled prokaryotes.


C. They are multicellular eukaryotes.

Biology & Microbiology

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Which of the following is not a body cavity?

a. Abdominal b. Thoracic c. Spinal d. Diaphragm e. Pelvic

Biology & Microbiology

Green algae are thought to be the closest relatives of

land plants for all EXCEPT which of the following reasons? a. All have cell walls of cellulose. b. All have chlorophylls a and b. c. They developed a cuticle and rhizoids that are characteristic of primitive land plants. d. They store excess carbohydrates as starch. e. All of these are true reasons.

Biology & Microbiology

The cerebral hemispheres communicate with each

other by means of the a. cerebral cortex. b. corpora cardiaca. c. corporothalamus. d. corpus callosum. e. centrosome.

Biology & Microbiology

The life cycle in Figure 27-3 could represent:


a. a moss.
b. a whisk fern.
c. a club moss
d. a horsetail.
e. a liverwort.

Biology & Microbiology