Courtship displays are a response to evolutionary pressure caused by
1.balanced polymorphism
2.heterozygote advantage
3.genetic bottlenecks
4.sexual selection
4
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A disease showing a relatively slow, progressive rise followed by a gradual decline in incidence is indicative of a(n)
A) host-to-host epidemic. B) common source epidemic. C) biological weapon. D) endemic disease.
Clays often have charged surfaces. How may this have been important in the formation of organic macromolecules?
A. They are a source of ATP to run chemical reactions. B. They are a source of oxygen to break down organic building blocks. C. They can form templates by binding organic building blocks. D. They form covalent bonds with organic building blocks. E. They are formed from meteorites that carried organic molecules to Earth.
The mRNA strand includes both introns and exons.
Answer the following statement true (T) or false (F)
If a person had sensorineural deafness, why would a bone-vibrating hearing aid be useless?
What will be an ideal response?