Asbestos is a material that was once used extensively in construction. One risk from working in a building that contains asbestos is the development of asbestosis caused by the inhalation of asbestos fibers. Cells will phagocytize asbestos, but are not able to degrade it. As a result, asbestos fibers accumulate in _____.

Answer the following statements true (T) or false (F)

1. Modern humans show a type I survivorship curve. 2. K-selected populations tend to reproduce quickly. 3. Exponential growth is rare because resources are usually limiting. 4. r-selected species tend to have type III survivorship curves. 5. Drought and floods are considered to be density-dependent factors potentially affecting population size.

The ovaries are regulated by the____

a. anterior pituitary b. posterior pituitary c. hypothalamus d. presence of environmental estrogens e. gonadal hormones

Translation ends when a stop codon is at the ____ site, allowing a ____ to bind there

a. P; release factor b. A; terminator tRNA c. E; terminator tRNA d. A; release factor e. P; terminator tRNA

Where does the copper used for wiring and plumbing come from?

a. Most copper is found in ocean sediments. b. Most copper is mined from the ground. c. Most copper is found along riverbanks. d. All copper is mined from the surface. e. All copper is manufactured synthetically in factories.