Which process creates new alleles to affect genetic diversity in a population?
A) independent assortment
B) random fertilization
C) segregation
D) mutation
D
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Vascular tissues distribute water and solutes through ground tissue. In ____, water and ions flow through tubes of dead tracheids and vessel elements
a. sclerenchyma b. parenchyma tissue c. ground tissue d. xylem e. phloem
All of the following are components of Darwin's principle of natural selection EXCEPT that
a. new alleles are constantly produced through mutation. b. populations exhibit great variation. c. organisms produce more offspring than can be sustained by the environment. d. over time, adaptive phenotypes increase in frequency within a population. e. variation can be inherited.
A person with a diet very low in iron may not be able to make enough of a formed element in the blood called ________
Fill in the blank(s) with correct word
A hemoglobin molecule is formed when four independent proteins interact with one another; hemoglobin demonstrates the _____ level of protein organization.
A) primary B) secondary C) tertiary D) quaternary E) pentary