I think the answer is a. Qualitative. Hope this helps :)
The aortic valve separates the left ventricle from the aorta, while the pulmonary valve separates the right ventricle from the pulmonary artery. As the ventricles contract, ventricular pressure exceeds arterial pressure, the semilunar valves open and blood is pumped into the major arteries.
Majority of energy, around 90% in fact, is lost between each trophic level, mostly due to the energy usage of sustaining life, and a lot is lost as thermal energy.
Answer: Some sticklebacks were stranded in lakes that were formed in the ice age
If the 2 alleles are the equal, the character is homozygous for that allele. If the alleles are different, the character is heterozygous.
When a populace is in Hardy-Weinberg equilibrium for a gene, it isn't always evolving, and allele frequencies will live the equal throughout generations. There are 5 fundamental Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, limitless populace size, and no selection.
To "fix" an allele method that the allele is gift at a frequency of 1.0, so all people withinside the populace have the equal allele at a locus.
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