Answer:
Volcanic eruptions help provide fertile soils (Option A)
Explanation:
There have been numerous confirmation of the existence of fertile lands around regions known to have experienced volcanic activities. The regions around Mount Vesuvius is not an exception even though volcanic activities around the region are over thousands of years ago.
This is because, when Volcano occurred in such regions, it deposited volcanic materials rich in minerals. The materials are then weathered or broken down by the action of water or erosion to release nutrients into the soil.
Answer: Phosphate groups
Explanation: The phosphate and deoxyribose molecules form the sides of the DNA ladder while nitrogenous bases form the rungs. Each set of one phosphate molecule, one deoxyribose molecule and one nitrogenous base form a nucleotide group.
Question options found from another source:
a. The different cells in an organism contain different genes
b. Each cell in an organism transcribes only the genes that the cell needs to perform its functions
c. Each cell in the organism produces the same proteins, but the ones that aren't needed are immediately digested
d. The different cells in an organism all transcribe the same genes, but their ribosomes make different proteins from them
Answer:
b. Each cell in an organism transcribes only the genes that the cell needs to perform its functions
Explanation:
Every cell in an organism contains exactly the same DNA, but it is how that DNA is put to use that affects the identity of the cell.
In a nerve cell and a liver cell the DNA is the same, but the expression of different genes, and therefore the combination of proteins present, will be hugely different.
This is because different combinations of genes are transcribed in different cell types that make one cell function as a liver cell and one as a nerve cell. These genes are cell-type specific. For example, a liver cell might express enzymes important for the breakdown of toxins, whereas a nerve cell might produce proteins important for signalling.
A ridge of sand projecting into a bay and often having a hooked and is a _.
Split
Answer:
Change in direction
Explanation:
"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object.