C) All variables are measured to provide data for the experimental results.
A is untrue because the independent variable will be changed to see how it changes the results.
B is untrue because the controlled variable will not be affecting the experiment because it is unchanging throughout the experiment.
D is untrue because the controlled variable will NOT be changing throughout the experiments.
Answer:
Heterozygous
Explanation:
A genotype describes which alleles of a particular gene a person has. We have two copies (alleles) of each gene, one from mom and one from dad, but these alleles can be different.
Often, these alleles can be dominant and recessive with regards to eachother. The dominant allele will always be displayed in the phenotype, whereas the recessive will not be presented, as it is masked by the dominant gene. If you have two copies of the dominant gene (homozygous) you will display the phenotype associated with the dominant genotype. If you have two copies of the recessive gene (homozygous) you will display the phenotype of the recessive gene.
If you have one copy of each (heterozygous), you will display the phenotype of the dominant gene, even though your genotype has a copy of each.
Answer;
-Protein ions
A resting axon's fluid interior has a mostly negative charge thanks to the presence of large protein ions.
Explanation;
-Intracellular and extracellular fluid of neurons contain various kinds of charged ions. These include sodium (Na+), potassium (K+), and chloride (Cl-). Additionally, these fluids contain many negatively charged protein molecules called anions (A-).
-The movement of such ions across neural membranes creates electrical activity. As ions move in and out of the cell, they bring their respective charges (either positive or negative) with them, thus influencing the voltage of cellular membranes.
-The protein molecules are large negatively charged proteins (anions) that are manufactured inside cells. They always remain inside the cell, as there are not membrane channels through which they can leave.Their charge contributes to the negative charge on the intracellular side of the membrane.
Answer:
they need to be able to maintain their salt content, thru osmoregulation
The answer is the first one A