Population and Ecosystems Unit lest

Question

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OURSE OUTLINE
Question 1
COURSE TOOLS
Three bird species share a habitat. Bird A eats insects and plant seeds. Bird B drinks flower nectar. Bird C eats plant seeds.
A drought occurs in their habitat, and that season's plants are wiped out entirely. What is the likely outcome for each type of bird?
(1 point)
• Bird B survives; both birds A and C die.
Bird B survives; either bird A or bird C dies, and the other survives.
• Bird A survives; both birds B and C die.
• Bird A survives; either bird B or bird C dies, and the other survives.
Question 2
A) An increase in which of the following could increase the long-billed curlew population? (1 point)
• grassland habitats
• pesticide use
• forest habitats
• milkweed
Question 3
SSON FEEDBACK
A) Long-billed curlews eat many different kinds of insects, including grasshoppers,

Answer 1

beetles, and caterpillars. Which type of relationship best describes the interactions between long-billed curlews and these insects? (1 point)
• mutualism
• commensalism
• herbivory
• predation