Answer:
Option A, it is more rapid than the primary response and results in higher antibody levels.
Explanation:
When an antigen contacts the immunity system for the first time it leads to a primary immune response. Since it is the first interaction, it requires more time to produce effect.
While a secondary response occurs when the same antigen attacks the same person second , third or n number of times. During secondary response, the body already has a memory of primary immune response and thus it is faster.
Hence, option A is correct
Let x be the number of prc cycles that is needed in order for the desired stranded copies to be achieved. The equation that allows us to determine the value of x is,
D = 2(2)^(x - 1)
Substituting the known value,
256 = (2)(2)^(x - 1)
The value of x from the equation is 8.
ANSWER: 8
The cells won’t be able to efficiently get what they need and that will disrupt processes such as cell respiration or photosynthesis. If you are talking about cell membranes, then the organisms won’t be able to function Bc the cell membrane compartmentalizes the cell to see that everything runs efficiently
The correct answer is C. It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
Explanation:
Information is considered as reliable if it is supported by evidence and the author is an expert in the field. According to this, the information about the Labrador Retriever in the encyclopedia is reliable because it is based on multiple scientific studies and articles that likely used evidence such as tests, observations, among others. Besides this, the studies were done by scientists at veterinary schools, which are considered to be experts and authorities in the field of dog breeds. Thus, this source "is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools."
Answer: They help control what enters and leaves the cell.
Explanation: carbohydrates also help the immune system identify if the cell is foreign or not.
