A polygenic trait is a trait controlled by many (poly) genes. Human skin color is an example; it thought to be the controlled by about 12 genes.
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The answer would be : <span>B. the Casparian strip is waterproof.
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Photon</span>
Answer:
a trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.
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Elevation because it means the level of a point surface height above the sea level
After the star's outer layers are expelled, the density of the remaining material is typically too low to provide adequate energy to sustain the hydrogen-burning shell's nuclear temperatures, and the remaining star easily contracts to form a white dwarf (a star with a density equal to the Sun, but a diameter equal to the Sun).
