If this is a really a educational question...
yes, it can
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Answer:
The Hardy Weinberg symbol for the dominant allele is 'p' in his equilibrium equation.
Explanation:
- The equation given by Hardy: "
" is known as "Hardy-Weinberg equilibrium equation". - The frequency of dominant allele and recessive allele for a trait is represented by 'p' and 'q' respectively.
- 2pq in the equation is the frequency for heterozygous genotype.
- Conditions that must be considered for the Hardy-Weinberg equilibrium equation to satisfy are: no mutations
, no flow of gene, large population size, no selective forces
, no non-random mating.
Answer:
The correct option is b. lower esophageal sphincter
Explanation:
The esophagus is the initial part of the digestive tract and its function is the transport of the alimentary bolus from the pharynx to the stomach, through the thorax and avoid the reflux thereof. It begins and ends in two sphincter structures, the upper esophageal sphincter and the lower esophageal sphincter, which separate it from the pharynx and stomach. The lower esophageal sphincter has two functions: relax during swallowing and prevent reflux of the gastric contents into the esophagus in the postdeglutory period. After swallowing, there is a relaxation of the lower esophageal sphincter, pressure dropping to levels similar to those of the gastric fundus, which allows the bolus to enter the stomach. This relaxation lasts a few seconds and is followed by a strong contraction that prevents backflow of food.
To prove that a certain fruit (in this case, an orange) indeed contains a certain compound (in this case, vitamin C); then the vitamin C should be extracted and isolated from the orange and must be confirmed by molecular analysis. The extraction process involves using chemicals (i.e. 6% MPA), and procedures such as centrifugation and filtration. Then the extract is stored and subjected to high-performance liquid analysis (HPLC) to measure the vitamin C content.
Answer:
For survival
Explanation:
All organisms need to adapt to their habitat to be able to survive. This means adapting to be able to survive the climatic conditions of the ecosystem, predators, and other species that compete for the same food and space.
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