The vegetation of tundra is dominated by
A) broadleaf deciduous trees.
B) short plants such as sedges, heaths, and willow.
C) needle-leaf evergreen trees.
D) sclerophyllous broadleaf evergreen shrubs.
B
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In living organisms, emergent properties
A. functionally arise from smaller successful parts and work together for a more successful organism. B. are produced in a new generation of offspring that will show the properties. C. develop tissue and organ systems, which show higher levels of complexity. D. functionally arise from larger successful parts working together for stronger organism. E. evolve new properties from other similar organisms.
What is the unifying or "core" theme of biology?
A) Evolution B) Energy transfer C) Nutrient recycling D) Hierarchical organization
The most primitive plants are the
A. ferns. B. flowering plants. C. mosses. D. pines.
Specialized molecules called _____ that help pull the new blood vessel forward during the process of angiogenesis
a. Cadherins b. Intergrins c. Proteases D. MMPs