List four reasons for deforestation in the tropics. Which of these are associated with consumption by

persons in highly developed countries? Which are associated with overpopulation of indigenous
persons? What will be an ideal response?


Concepts to Consider: subsistence agriculture (slash and burn agriculture), by increasing populations
of indigenous persons in developing countries; commercial logging by large international companies,
with consumption primarily by persons in highly developed countries; cattle ranching by many large
international companies, with consumption by persons in highly developed countries; fuel-wood
gathering (particularly in dry forests), with consumption by large populations of persons in developing
countries.

Biology & Microbiology

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Which of the following is not needed for DNA replication?

A. ribosomes B. DNA C. nucleotides D. enzymes E. None of these are needed.

Biology & Microbiology

In an elegant set of experiments, which protein did Anfinsen study in order to understand how the three-dimensional

structure of proteins is determined?

a. ovalbumin b. chaperonin c. ribonuclease d. insulin e. hemoglobin

Biology & Microbiology

The chromosome makeup of an individual organism is called a:

a. kinetochore. b. chromosome plot. c. centromere. d. karyotype. e. centriole.

Biology & Microbiology

Red mites (chiggers) spread ________ among both humans and rodents.

A. Borrelia recurrentis B. Orientia tsutsugamushi C. Rickettsia rickettsii D. Ehrlichia chaffeensis E. Rickettsia typhi

Biology & Microbiology