A laparoscopic cholecystectomy is the removal of gallbladder using a laparoscope which is a narrow tube with a camera and compared to the open cholecystectomy, it only has small incisions instead of a large one. The patient's stomach as part of the procedure will be inflated with carbon dioxide and will be deflated right after the procedure. The nurse should inform the patient then that it is a normal side effect of the carbon dioxide placed into the stomach prior to the start of the procedure and it would just be gone yet patient would just feel a little bit discomfort.
Answer:
The correct answer is (b): Individuals with certain advantageous traits are selected, in the sense that they produce the most offspring.
Explanation:
Natural selection can cause a change in allele frequencies over time, making the best alleles, those better adapted, more common in the population over generations.
This is called Fitness, and it refers to how many offspring organisms of a particular genotype or phenotype leave in the next generation, relative to others in the group.
Natural selection can act on different alleles of a single gene, or on polygenic traits.
Natural selection can shift phenotype distributions in three ways:
-Stabilizing selection: Intermediate phenotypes are more fit than
extreme ones, e.g. camouflage.
-Directional selection: One extreme phenotype is more fit than all the
others, e.g. are more hidden in shadow and survive better than other
types.
-Disruptive selection: Both extreme phenotypes are more fit than those
in the middle, e.g. mimesis on octopuses.
I hope it helps!
Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. So I believe the answer you are looking for would be the third one :)
Hope this helps! Please let me know if I'm wrong :)
Answer: Solar panels are made up of silicon cells. This because silicon has high ability for conduction and this make it to be able to convert sunlight into electricity. It is in solar cells has impurities and great chemical properties which make it to be to convert sunlight to electricity.
Silicon
Explanation:
Silicon is an element with atomic number 14, it is a non metal and crystalline solid. It has blue grey metallic lustre. Silicon is made with impurities in solar cells and has special chemical properties to convert sunlight into electricity. It is a semiconductor, a material that can act as a conductor and insulator.
When light interact with silicon cells, it make electrons to be in motion and initiate the flow of electricity, it is called photovoltaic effect.
Silicon alone is not used, it used with metal casing and wiring to ensure proper electric flow.
Vesicles - carry certain molecule from place to place within a cell