I am not sure but I think the answer would be A. Since where they live caused them to need to adapt.
Silicates is the answer to this.
A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to interact with a class II MHC-antigen complex
Importance of Class II MHC-Antigen complex
- CD4+ T cell-dependent immunological responses need antigen presentation restricted to MHC class II.
Professional antigen-presenting cells (APCs) perform a range of functions that are essential for the generation of an effective and specific immune response.
- Dendritic cells (DCs) investigate their surroundings and gather foreign antigens, such as those derived from bacteria or viruses, before activating CD4+ and CD8+ T cells to initiate adaptive immune responses against these antigens.
- The thymus' DCs and epithelial cells express (and also capture) a diverse set of self-proteins that contribute to both central and peripheral tolerance.
Recognizing the processes involved in the creation (and stability) of peptide-MHC class II complexes in APCs provides crucial information about T cellular metabolism including both normal and pathological settings.
Hence, the correct answer is option D
Learn more about APC here,
brainly.com/question/13588471
# SPJ4
Condensation because condensation is gas to liquid
Answer:
A.Both of you pull with equal force on opposite sides of the ball.
Explanation:
Balanced forces means that the total force or the sum of the force done on the object should be equal to 0 newtons or in other words, it should not be moving.
Force is defined as the push or pull on an object. For both people to balance out the forces on the ball while both applying a force, you need to do this from opposite sides.
You could either pull with equal forces on opposite sides of the ball or you can push with equal forces on opposite sides of the ball.
→ ball ←
← ball →
For the other choices, if you both push or pull on the same side, the ball would move that direction because there is no opposing force.
ball → →
If one pushes while the other pulls on opposite sides, it will move the direction you are pulling and pushing.
→ ball →
