A root structure that protects buds from fire
helps short-leaf pines resist fires
Answer: Option D
<u>Explanation:</u>
Short leaf pine plant in the struggle for existence under hot scorching fire has developed a root structure that protects the buds from fire. This type of pine is called a fire resistant plant as it survives in the canopy of other trees.
Frequent burns have made them resistant to this fire. This is a wonderful example of how some plants survive in this extreme condition where it has to undergo frequent burns.They can also adopt and survive in drought conditions.
Answer:
charge is the answer I'm pretty sure
The right answer is Ribosomes from the endoplasmic reticulum ==> Golgi apparatus ==> vesicles that fuse with plasma membrane and taken out of the cell.
In the eukaryotic cell in particular, the protein must be delivered or transported from the place of synthesis to its functional compartment by a sorting and routing system.
The destination of the protein is determined by its nature thanks to the presence of specific sequence called addressing signal.
During the addressing, several molecules are used, namely: receptors specific for the targeting sequence, translocation membrane proteins and chaperone proteins.
Depending on their final destination, there are two protein addressing routes: the secretory pathway and the cytosolic pathway.
Options are not provided in teh question. The complete question is as following:
Which of the following classes of antibodies is most likely to be made by the oldest plasma cell in a population of B cells?
a. IgM
b. IgG
c. IgA
d. None of the listed responses is correct.
Answer:
c. IgA
Explanation:
Specialized white blood cells called B lymphocytes (or B cells) contain antibodies. The mature B cells, or plasma cells, secrete millions of antibodies into the lymphatic system and the bloodstream. The plasma cell antibodies have the exact same antigen-binding site and specificity as the precursors to their B cells. Five different types of antibodies are present in humans: IgA, IgM, IgG, IgD,IgE.
In the oldest plasma cell igA classes of antobodies are present because initially plasma cells secret IgM but it switch and forms IgG, as the plasm aget older ans switch of antibodies takes place for scond time they can make IgA or IgE.
Hence, the correct option is c. IgA.
11/10 my score is so high because I have a hard time focusing on school and homework so i constantly am behind plus most the time id rather watch netflix