Where is the biomass pyramid upside-down?
a. among birds
b. in forest habitats
c. in tundra habitats
d. in a pond or a sea
e. in prairie habitats
D
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Amphibians gave rise to the successful land dwellers, the ________, about 300 million years ago.
Fill in the blank(s) with the appropriate word(s).
Malignant neoplasms arising from connective tissue cells are referred to as.
A) carcinomas. B) sarcomas. C) melanomas. D) fibromas.
Which one of the following incorrectly pairs a vertebrate group with its major evolutionary innovation?
A. Ostracoderms-cartilaginous endoskeleton B. Sharks-teeth C. Dinosaurs-bipedalism D. Placoderms-jaws E. Amphibians-paired lateral fins
Which of the following diseases are you NOT likely to get from an arthropod vector?
a. none of the answers are correct (all of the organisms come from arthropods) b. Lyme disease c. schistosomiasis d. malaria e. plague