Answer:
there are many steps to be followed while preparing temporary slides for observation under the microscope. Explanation: there is cutting of the tissue into smaller section. This reduces the opacity.
Explanation:
Answer:
The correct answer would be d. thymus.
The thymus is a specialized lymphoid organ of an immune system.
It serves as the site for training and maturation of T-lymphocytes or T cells.
It is composed two identical lobes each containing outer region termed as cortex and inner region termed as medulla.
T-cells are first trained and selected in the cortex region via positive selection. In this, T cells which are able to bind to foreign antigens are selected and rest are degraded.
The selected T cells then move in the medulla region where they are selected by negative selection. In this, the T cells which binds to self-antigens are degraded and rest survive to become functional T cells.
Invasive Species ( just took the test its right)
Processes like deforesstation can bring an enviromental change in which it is harmful but afforestion is another form which bring the enviroment in to a better situation
Cyclin-depedant kinases (Cdks).
