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Question

Population and Ecosystems Unit Test
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 A survives; either bird B or bird C dies, and the other survives.
• Bird A survives; both birds B and C die.
• Bird B survives; both birds A and C die.
• Bird B survives; either bird A or bird C dies, and the other survives.

Answer 1

• Bird A survives; both birds B and C die.

Since Bird A eats insects in addition to plant seeds, it has a more diverse diet and is likely to be able to find food sources even if plant seeds are unavailable. Bird B, which only drinks flower nectar, may struggle to find enough food without the plants that provide nectar. Bird C, which only eats plant seeds, will likely not survive without any plant seeds available.