How does the greenhouse effect help to explain Earth's climate?

A developer has proposed filling in a salt marsh to create a coastal resort. What positive and negative effects do you think this proposal would have on wildlife and local residents? Would you support the proposal?

A developer has proposed filling in a salt marsh to create a coastal resort. What positive and negative effects might this proposal have on wildlife and local residents? Would you support the proposal? Why or why not?

Give an example of a model biologists use to better understand ecological phenomena. How does the model help?

Give an example of an ecological phenomenon that could be studied by modeling. Explain why modeling would be useful.

Consider these two biomes: (1) the temperate grassland and (2) the temperate woodland and shrubland. Coyotes live in both biomes. Describe two adaptations that might enable coyotes to tolerate conditions in both biomes.

Consider these two biomes: (1) the temperate grassland and (2) the temperate woodland and shrubland. Animals such as coyotes are known to live in both biomes. Describe two adaptations that might enable an animal to tolerate these two different biomes. Discuss the coyote or an animal of your choice.

What are the properties of a useful model of global systems?

How are aquatic ecosystems similar to ecosystems on land? How are they different?

One friend says biotic factors are more important than abiotic factors to ecology. Another friend says abiotic factors are more important than biotic factors. What do you think? Defend your position using examples from a specific biome of your choice.

Ecologists have discovered that the seeds of many plants that grow in forests cannot germinate unless they have been exposed to fire. Design an experiment to test whether a particular plant has seeds with this requirement. Include your hypothesis statement, a description of control and experimental groups, and an outline of your procedure.

Although the amount of precipitation is low, most parts of the tundra are very wet during the summer. What characteristics would explain this apparent contradiction?

A plant grower has a greenhouse where she grows plants in the winter. The greenhouse is exposed to direct sunlight and often gets too hot for the plants. She paints the inside of the glass with a chalky white paint, and the temperature drops to comfortable levels. Explain why this solution works.

What is the ocean zone in which photosynthesis cannot occur?