B .The membrane is what separates, and is the system boundary.<span />
If the shape of radish is under the control of one gene, for example A than we can say:
AA is dominant homozygous genotype-round radish phenotype,
aa is recessive homozygous genotype-long radish phenotype
If we cross round and long radish:
P: AA x aa
F1: Aa Aa Aa Aa
Aa is heterozygous genotype-oval phenotype
If we than cross the F1:
Aa x Aa
F2: AA Aa Aa aa
This means that the ratio between the phenotypes woul be 1:2:1 (round:oval:long).
Answer:
Glycogen. (Ans. C)
Explanation:
Glycogen is known as the storage form of glucose in animal cells. It a polysaccharide of glucose which is multi-functional and serves as an energy form storage in animals. Liver cells primarily stored glycogen, some glycogen also stored in muscle cells for immediate use if needed.
Glycogen molecule composed of many glucose molecules that are linked together with the help of the alpha acetal group. To create energy currency (adenosine triphosphate) glucose is the primary source used by every cell.
Plasma membrane. controls in/out of cell.
chromosomes. DNA, instructions for protein synthesis.
ribosomes. manufacture proteins.
metabolic enzymes. building and breaking down molecules.
cytoskeleton. skeleton of cell that proteins can move by.
Answer:
3.8 billion years
Explanation:
The ocean formed billions of years ago.
Over vast periods of time, our primitive oceans formed. Water remained a gas until the Earth cooled below 212 degrees Fahrenheit . At this time, about 3.8 billion years ago, the water condensed into rain which filled the basins that are now our oceans.
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