Solution:
The difference between them are:
The humoral system of immunity is also called the antibody-mediated system because of its use of specific immune-system structures called antibodies. The first stage in the humoral pathway of immunity is the ingestion (phagocytosis) of foreign matter by special blood cells called macrophages. The macrophages digest the infectious agent and then display some of its components on their surfaces. Cells called helper-T cells recognize this presentation, activate their immune response, and multiply rapidly. While,
The cell-mediated immune response involves cytotoxic T-cells, or killer-T cells. Body cells that have been infected by foreign matter often present components of that material on their surfaces. Killer-T cells recognize these displays and respond by ingesting or otherwise destroying the infected cell. Killer-T cells are also important in the body's defenses against parasites, fungi, protozoans, and other larger cells that might have found their way into the body. The killer-T cells recognize these large invaders by their foreign proteins and then destroy them.
This is the required answer.
Answer:
Which of the following is true of the composition of all materials?
All materials are made up of smaller parts that cannot be seen without magnification
Explanation:
Material composition entails smaller parts that made up of such materials which are embedded in it. it could be chemical, addictive, which are not seen
Transcription is the process in which mRNA is produced from DNA by using transcriptase enzyme.it involves the following process:splicing,5 END methylation cup,3 end polytail A .
The anwser should be B. Nonrenewable resources generally have a higher impact on the environmental than renewable resources.
Answer:
Hello your question is incomplete attached below is the complete question
answer : = 1.25
Explanation:
i) Determine the rate of mtDNA percent divergence
From the data given the most closely related specie is Chimpanzee ( 8.8 sequence difference )
Note : Given that this divergence took place seven million years from now
∴The rate of mtDNA percent divergence per 1 millions years
= 8.8 / 7 = 1.25
