The male part of a flower is the
A. petal.
B. pistil.
C. sepals.
D. stamen.
D. stamen.
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An inhibitory postsynaptic potential (IPSP) occurs in a membrane made more permeable to _____
A) potassium ions B) sodium ions C) calcium ions D) ATP E) all neurotransmitter molecules
You see a purple light and immediately receive a mild electric shock. This happens several times. You eventually cringe at the sight of the purple light. The first time you saw that light it was a(n) ______________
Fill in the blank(s) with the appropriate word(s).
Bright coloration in birds makes them stand out to predators. In female birds that sit on the nest, bright coloration is rare. This is likely the result of
A) artificial mutations. B) natural selection. C) stabilizing selection. D) coevolution. E) gene flow.
Which of the following statements accurately reflects the differences between Batesian mimicry and Müllerian mimicry?
A. Batesian mimicry differs from Müllerian mimicry in that they occur on different continents-Batesian on North America and Müllerian on Europe. B. Batesian mimicry does not differ from Müllerian mimicry. Two different scientists discovered these two types at the same time, and they disagreed on what to call it. C. In Batesian mimicry the model must be more dangerous than the mimic; in Müllerian mimicry they are both dangerous. D. Batesian mimicry involves invertebrates; Müllerian mimicry involves vertebrates. E. In Batesian mimicry the model must behave differently than the mimic; in Müllerian mimicry they behave the same.