Nitrification of ammonia occurs when ammonia is first converted to nitrite and then is converted to nitrate by the nitrogen-fixing bacteria.
Answer the following statement true (T) or false (F)
False
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Over the winter your hibiscus plants were killed by cold winter temperatures. You are so annoyed that you ignore the garden; much to your surprise sunflowers sprout on their own
That second summer you see lots of goldfinches (small yellow birds) visit the garden to eat the sunflower seeds. Given that all abiotic conditions remained the same over the two years, why do you see hummingbirds the first year and goldfinches the second year? A. Communities depend on interactions among organisms. B. Communities depend on the physical environment. C. Disturbance can modify community composition. D. All of the responses are correct. E. More than one of the responses are correct.
A smooth pattern of variation along a geographical gradient is referred to as a ____
a. ring species b. hybrid zone c. morphological species d. cline e. cluster of subspecies
Penguins and alcids are ecological equivalents. Describe what is meant by ecological equivalency and explain why you think it may arise
What will be an ideal response?
How was it determined that X rays are mutagenic?
What will be an ideal response?