You are an ecologist collecting data about the declining growth rate of the critically endangered philippine eagle. the eagles' only known population is estimated to have about 350-650 individuals. which of the following can you assume is zero?
a. natality
b. mortality
c. emigration
d. immigration

You can assume a. natality is zero as the population is decreasing.

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Explanation:

trachea, alveoli, lung capillaries, arteries

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