Which of the following would be the most effective strategy to remove toxic heavy metals from a soil?
A) heavy irrigation to leach out the heavy metals
B) application of sulfur to lower the soil pH and precipitate the heavy metals
C) adding plant species that have the ability to take up and accumulate heavy metals
D) inoculating soil with mycorrhizae to avoid heavy-metal uptake
C
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The seeds of many plant species are dispersed by a harmless temporary attachment to an animal's fur or feathers. This form of dispersal is known as
A. ectoparasitism. B. amensalism. C. mutualism. D. phoresy. E. trophic mutualism.
You place an empty dog-food dish across the room from a puppy that then goes over to investigate the dish. You pick the dish up and ten minutes later you place it in a different part of the room, and you keep repeating this pattern. After the fifth time the puppy no longer goes over to the empty dish. Which of the following terms best describes this form of learning?
A. trial and error learning B. habituation C. classical conditioning D. operant conditioning E. imprinting Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about types of learning behaviors? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
How does the structure of lymphatic capillaries differ from that of capillaries of the circulatory system?
What will be an ideal response?
Explain the significance of the 1950s experiments of F. C. Steward.
What will be an ideal response?