Certain traits will have been lost from the gene pool forever. Some may be obvious, like people with red hair or double jointed thumbs. Others will be less obvious, like the ability to process cholesterol or being allergic to peanuts. This loss of diversity in a reduced population is called ________.
A) gene flow
B) genetic drift
C) bottleneck effect
D) founder effect
Answer: C) bottleneck effect
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Czar Nicholas II of Russia and Queen Victoria's granddaughter, Alix, were the parents of a son with the genetic disorder affecting the mechanism of blood clotting called ____________________
Fill in the blank(s) with correct word
The colonial theory of animal origins states
that animalsa. migrated on land from sponge colonies in the ocean. b. originated in the Colonial geologic period. c. evolved from autotrophic green alga colonies. d. evolved from heterotrophic colony-forming protists. e. colonized land before they colonized the seas.
a. migrated on land from sponge colonies in the ocean. b. originated in the Colonial geologic period. c. evolved from autotrophic green alga colonies. d. evolved from heterotrophic colony-forming protists. e. colonized land before they colonized the seas.
An ion is formed ____
a. during covalent bonds b. when water molecules are bound together c. when atoms exchange electrons d. when atoms share electrons equally e. when atoms share electrons unequally
Proximate causes of behavior have evolutionary explanations. Indicate whether the statement is true or false