Answer: helper T cell.
Explanation:
This is a type of T cell that provides help to other cells in the immune response by recognizing foreign antigens and secreting substances called cytokines that activate T and B cells. T-helper cells fall into two main classes: those that activate other T cells to achieve cellular inflammatory responses; and those that drive B cells to produce antibodies in the humoral immune response. These two classes of response are generally incompatible with one another and require coordination by substances called cytokines to promote one response while dampening the other.
T-helper cells have CD4 markers on their surface. They are a special subpopulation of CD4 cells. They are also called helper cells and helper T cells.
Answer:
The main function of fungus hyphae is to absorb nutrients from its surrounding.
Explanation:
Fungi is a form of multicellular organism which has pores. They mostly feed on organic matter such as mushrooms, mold, yeast and toadstools. One of the types of fungus is fungus hyphae. This type of fungus absorbs nutrients from its surrounding.
The hyphae not only absorbs nutrients from its host but also from soil. it has a thick cell wall and a long structure which helps it to branch out.
B) reducing the activation energy can increase the rate of a reaction.
I think yes, because long ago, we didn’t know that. So, so many children knowing simple information, that even some adults didn’t know long ago, is evolution I’d say.
Active Transport is the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.