Coniferous forests are important ecosystems, particularly in higher latitudes and altitudes. How are conifers of direct

economic importance to humans? What will be an ideal response?


Concepts to Consider: Conifers are used extensively in the lumber industry; the medicine
taxol is derived from the yew; resins and turpentine are derived from conifers; they are also
important landscape plants and are used as Christmas trees.

Biology & Microbiology

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To measure the population of lake trout in a 250-hectare lake, 400 individual trout were netted and marked with a fin clip, then returned to the lake

The next week, the lake was netted again, and out of the 200 lake trout that were caught, 50 had fin clips. Using the mark-recapture estimate, the lake trout population size could be closest to which of the following? A) 160 B) 200 C) 400 D) 1,600 E) 80,000

Biology & Microbiology

Explain the ethical concerns with germ-line gene therapy in humans

What will be an ideal response?

Biology & Microbiology

Which organ in the human digestive system contains an oblique layer of muscle as a part of its

muscularis?

a. esophagus b. large intestine c. liver d. small intestine e. stomach

Biology & Microbiology

The electrons that are passed to NADP+ during the

noncyclic pathway are obtained directly from __________ but ultimately from __________. a. chlorophyll; water b. CO2; chlorophyll c. ATP; O2 d. water; chlorophyll e. NADPH; chlorophyll

Biology & Microbiology