Answer: Stem cell research has the potential to treat diseases that are currently burdened with high health care costs—especially chronic conditions such as heart disease, Alzheimer's disease or diabetes, the costs of which threaten to cripple the healthcare system.
The abiotic factors that play an important role in the tropical forests are the rain, to give the animals and plants the water they need to grow, the sunlight, it gives the plants and trees the energy they need to perform certain tasks like photosynthesis, which gives animals air to breathe.
Answer:
The correct option is C. Organize all living things in a logical manner
Explanation:
In biology, taxonomy is defined as the branch of science in which organisms are classified. The organisms are classified into 8 domains based on their similarities or differences. The more a specie is related to another organism, the more similarity it will acquire in the 8 domains.
The names of the 8 domains on the basis of which organisms are classified are:
- Domains
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
Answer:
TCR
Explanation:
Helper T cells are the CD4T cells that are present in the inactive form. These cells have receptors for antigens on their surface. These antigen receptors are called T-cell receptors (TCRs). The function of TCR is to recognize and bind to specific foreign antigen fragments that are presented in antigen–MHC complexes. Different helper T cells have their unique TCRs to recognize a specific antigen–MHC complex. The CD4 proteins of helper T cells also interact with the MHC antigens and help maintain the TCR–MHC coupling.
