Question 1: B: rapid water drainage
Answer:
1.0 mole per dm3 sodium chloride solution
Explanation:
<em>The more the molarity of a solution, the lower the water potential of the solution, and the higher the amount of water that will osmotically move from the potato stick to the solution when placed in it in order for an equilibrium to be established. </em>
Hence,<u> the 1.0 mole per dm3 sodium chloride solution will cause the largest decrease in the mass of the potato stick</u> when compared to the 0.5 and 0.1 mole per dm3 sodium chloride solutions.
Answer:
The correct answer is option D. "lipid".
Explanation:
Lipids, known also as fats or oils, are organic compounds that are insoluble in water and are made up of carbon, hydrogen, and oxygen. The formula of this question shows a biomolecule that is made up of this three atoms, and even though carbohydrate are made up of this three atoms as well, we can determine that it belongs to a lipid because it contains many more hydrogen atoms than oxygen atoms. Other characteristic of lipids is their long chains of carbon and hydrogen atoms, which are represented by the lines shown in blue. I attached the missing formula.
Answer:
T T C O C T
Explanation:
Each eukaryotic chromosome usually has repeated telomere sequences ranging from 2 to as many as 2000.
There is normally just one specialized DNA sequence called the centromere per eukaryotic chromosomal DNA molecule.
The origin of replication is the site where DNA duplication starts in S phase.
The centromere attaches the chromosome to the mitotic spindle via the kinetochore structure.
Teleomere contains repeateted sequences at the ends of the chromosomes.
The answer to this question would be B. the use of stem cells is without any objections since it can be used in therapies to help humans.
The use of stem cell has many controversies, mostly in the religious group that is pro-life. Since the cell of a zygote is totipotent and be able to differentiate into the most type of cell, it is better to use zygote cells. But some religions consider that cell is already human after fertilization, thus using zygote cells is considered as killing a human.
Human blood cell and umbilical cord are multipotent. There should be no pluripotent in the adult by default, but there <span>is </span>some research about induced pluripotent stem cell (IPSCS) in the adult.
