Answer:
Langerhan's cells
Explanation:
The Langerhan's cells arise from the bone marrow and migrate to the epidermis. The Langerhan's cells are the body's first line of defense and play a significant role in antigen presentation. They need special stains to be visualized and are primarily found in the stratum spinosum. These are the mesenchymal origin obtained from CD34 positive stem cells of bone marrow and are part of the mononuclear phagocytic system.
Answer:
Genetic drifts and meiosis
Explanation:
Answer:
Examples of Beneficial Mutation. Mutation, a change in the sequence of genes, is divided into various types such as beneficial, harmful, and neutral, based on their effects. ... Germ-line mutation occurs in the germ cells, and is inherited by the offspring via the reproduction cells.
Explanation:
For many of their illnesses scientist and doctors haven't treated them before so they don't know how to treat them or exactly if the animal can handle the treatment
C. Enzymes increase the rate of the chemical reactions carried out during metabolism.
