Answer:
a. The chromosomes in a somatic cell of any organism are all morphologically alike FALSE
Somatic cells have autosomal chromosomes and also carry sex chromosomes. These chromosomes are in pairs and each pair is morphologically different from the other pairs because they have differences in the size and the position of the center. It allows them to be differentiated from others, this can be made evident by a karyotype.
b. During mitosis, the chromosomes divide and the resulting sister chromatids separate at anaphase, ending up in two nuclei, each of which has the same number of chromosomes as the parental cell. TRUE
During the anaphase there is separation of the sister chromatids. At the end of the anaphase, a complete set of chromosomes is grouped at the cell's poles. The mitosis process produces two daughter cells with the same genetic material to the progenitor cell.
Explanation:
there are 12 cranial nerves
Answer:
B. sodium
Explanation:
2 potassium ions are moved inside the cell and 3 sodium ions are moved out. So there is more sodium on the outside of the cell.
<h2>Answer:</h2>
Option C is the correct answer.
C.The water molecules are repelled by the lipid tails of the cell membrane, but the carbon dioxide and oxygen molecules are not.
<h2>Explanation:</h2>
Lipids has two distinct portions. The heads of lipids are (Hydrophilic) and the tails of the lipids are (hydrophobic). So, as the tails of the lipids are hydrophobic i.e. water hating so they do not allow water molecules to pass from, while allow molecules of carbon dioxide and oxygen.
Answer:
D. Draw conclusions
Explanation:
The scientific method
At the core of biology and other sciences lies a problem-solving approach called the scientific method. The scientific method has five basic steps, plus one feedback step:
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.
The scientific method is used in all sciences—including chemistry, physics, geology, and psychology. The scientists in these fields ask different questions and perform different tests. However, they use the same core approach to find answers that are logical and supported by evidence.