Biology, 12.08.2020 09:01 DivineMemes420
A scientist wants to determine the age of a rock. The rock contains an index fossil and an ancient relative of a living organism. Which is more useful for dating the rock, and why?
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Biology, 22.06.2019 09:00
How does photosynthesis show the conservation of mass and energy?
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Biology, 22.06.2019 11:30
Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.
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Biology, 22.06.2019 20:30
Procedure in pregnancy to have access to fetus. what do you call this procedure?
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A scientist wants to determine the age of a rock. The rock contains an index fossil and an ancient r...
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