Identify which anthropogenic biome, or anthrome, you live in. What natural biome occurred there before?

Which of the following was not a geological clue used to support the theory of continental drift?

A. Rocks of the same composition and age were found in Brazil and South Africa.

B. Fossils of the reptile Lystrosaurus were found on the landmasses of Africa, India, and Antarctica.

C. Fossils of the plant Glossopteris were found on the landmasses of South America, Africa, India, Antarctica, and Australia.

D. Samples of ocean water tested off the coast of South America contained the same salt content as oceans near Africa.

Predict how a lower rate of turnover and more stratification in Lake Tanganyika, caused by climate change, could affect its sardine fishery. Explain.

Use the niche concept to explain this pattern: Douglas fir trees are abundant on the western slopes of the Cascade Mountains but not the eastern slopes.

$\text{\blue{WHAT IF?}}$ In what way is the Kissimmee River project a more complete ecological restoration than the Maungatautari project (see Figure $55.17$)?

In what way is the Kissimmee River project a more complete ecological restoration than the Maungatautari project ?

How do bioremediation and biological augmentation differ?

Identify the main goal of restoration ecology.

$\text{\blue{WHAT IF?}}$ Why is nutrient availability in a tropical rainforest particularly vulnerable to logging?

Why does deforestation of a watershed increase the concentration of nitrates in streams draining the watershed?

Why does deforestation of a watershed increase the concentration of nitrates in streams draining the watershed?

Tobacco leaves contain nicotine, a poisonous compound that is energetically expensive for the plant to make. What advantage might the plant gain by using some of its resources to produce nicotine?

Detritivores are consumers that obtain their energy from detritus. How many joules of energy are potentially available to detritivores in the ecosystem represented?

A sample of nicotine, a poisonous compound found in tobacco leaves, is $74.0 \% \mathrm{C}, 8.7 \% \mathrm{H}$, and $17.3 \% \mathrm{~N}$. If the experimental molar mass of nicotine is $162 \mathrm{~g}$, what is its molecular formula?