The second one would be my answer but also an answer that is not up there is that during an experiment when repeating the trials you might have to set up a new hypothesis every time and have to review the data several different times because of different results from each trial
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The neuronal membrane potential depends on different concentrations of sodium and potassium on either side of the membrane. Ionic concentration gradients are established by the action of the sodium-potassium ion pump, an enzyme that requires ATP. Without ATP, the pump will not function. As a result, the resting membrane potential will not exist and the brain will not function.
What is neuronal membrane?
The neuron and its ionic components can be treated using the ideas mentioned above.
The neuron's plasma membrane is only minimally permeable to Cl and Na+ and extremely permeable to K+. A balance between a high concentration of Na+ and a high concentration of Cl, as well as modest amounts of impermeant anions like bicarbonate, phosphate, and sulfate, is what keeps the extracellular fluid's electroneutrality. The concentration of Cl in the cytoplasm, where K+ concentration is high, is substantially lower than what is required to balance the sum of the positive charges. There, negatively charged impermeant proteins and phosphates keep the environment electroneutral.
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Connective tissue.
- tissue that provides structure, support, and protection to other human tissues and organs. In addition to helping to transport nutrients and other substances between tissues and organs, connective tissue also helps to store fat and mend damaged tissue. A gel-like substance, fibers, and cells make up connective tissue.
- connective tissue is a set of tissues found throughout the body that help to keep the body and its organs in shape as well as to give internal cohesion and support. The more specialized and recognized variations—bone, ligaments, tendons, cartilage, and adipose (fat) tissue—as well as a variety of fibrous tissue types that differ only in density and cellularity are included in the connective tissues.
- The majority of the organs in the abdominal cavity are connected to the abdominal wall by a membrane strip called the mesentery.
Therefore, the correct answer is connective tissue.
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Answer:
e. is under purifying selection
Explanation:
Purifying selection removes deleterious alleles that can arise through
random mutations
.
Mutations may or may not have consequences at the level of genetic expression depending on whether those mutations are synonymous or nonsynonymous. Synonymous mutations do not generate changes in the protein to be encoded while non-synonymous ones do.
Important genes for the development of the organism - such as those involved in the neural development- are very likely to be under purifying selection, eliminating individuals with deleterious alleles since those alleles (product of non-synonymous substitutions) do not allow the individuals to survive.
It's H i just had that HW
