Urea carries waste nitrogen from the body in urine.Identify the functional group circled. 
Definitions:
Heterozygote Advantage
A genetic phenomenon where individuals with two different alleles for a particular trait have a greater fitness than those with two identical alleles.
Frequency-Dependent Selection
A type of natural selection where the fitness of a phenotype or genotype depends on its frequency in the population.
GDF9 Gene
A gene that is important for ovarian follicle development in females and has been implicated in fertility.
Genetic Drift
A mechanism of evolution that involves random changes in the frequency of alleles within a population, often having a more significant effect in small populations.
Q14: What is a product platform?<br>A) A subsystem,
Q24: When attempting to understand target customers it
Q27: What metallurgical process is used to obtain
Q36: Discuss how Robert Smithson uses the natural
Q36: Which is the principal reducing agent in
Q53: What is the formal charge on the
Q59: The reaction of an alcohol and a
Q75: Why is cryolite,Na<sub>3</sub>AlF<sub>6</sub>,mixed with alumina prior to
Q85: What is the chemical formula for phosphate
Q102: How should the color of the solution