Stridor, its as described in the definition above, a high pitched wheezing sound caused from a blockage
Answer:DNA replication is the copying of DNA that occurs before cell division can take place. After a great deal of debate and experimentation, the general method of DNA replication was deduced in 1958 by two scientists in California, Matthew Meselson and Franklin Stahl.
DNA Replication. DNA replication faithfully duplicates the entire genome of the cell. During DNA replication, a number of different enzymes work together to pull apart the two strands so each strand can be used as a template to synthesize new complementary strands. The two new daughter DNA molecules each contain one pre-existing strand and one newly synthesized strand. Thus, DNA replication is said to be “semiconservative.”
Another person has already given the definition of this. Here are the functions of a cnidoblast:
Used for defence from predators
Capturing prey
Each cell is ‘tagged’ by an organelle called the cnidocyst which has poisonous chemicals.
Answer:
London smog results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal. This type of smog is aggravated by dampness and a high concentration of delayed particulate matter in the air.
Explanation:
So, the answer would be B or D.
But, it is most likely B due to dampness.
Answer:
C
Explanation:
Malthusian Theory of Population in the 18th century European, proposed a theory of exponential population growth and arithmetic food supply growth.