#Question id: 9181
#Unit 9. Diversity of Life Forms
Turnover of water in temperate lakes during the spring and fall is caused by which of the following?
#Question id: 9183
#Unit 9. Diversity of Life Forms
If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into ________.
#Question id: 9184
#Unit 9. Diversity of Life Forms
Which aquatic biome listed here is one of the most productive on Earth, and why?
#Question id: 9185
#Unit 9. Diversity of Life Forms
Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?
#Question id: 9186
#Unit 9. Diversity of Life Forms
A pathogenic fungus invades a plant. What does the infected plant produce in response to the attack?
#Question id: 9187
#Unit 9. Diversity of Life Forms
Which of the following are defenses that some plants use against herbivory?