Several factors have been considered before the construction
was started. This includes the wildlife in the area and certain precautions
have been made for their benefit and protection. This part of the Mojave Desert
was chosen because it has the best potential in absorbing the sun’s energy rays
at anytime of the year thus giving the assurance that the solar power supply
will be enough all year round.
A. Reflex triggers the need for water
Answer:
The regulation of inflammatory responses at the site of infection is an example of paracrine signaling.
Explanation:
Paracrine signaling is a type of signaling where the cell communicates with their neighbor cells through the secretion of the signaling molecules. These signals move by the process of diffusion through the extracellular matrix.
Paracrine signaling helps in many biological activities in the body such as blood clotting, tissue repair, and reaction against allergens. Transfer of signals across a junction between two nerve cells is an example of practice signaling.
Answer:
Adrenocorticotropic Hormone (ACTH)
Explanation:
The correct option is DENDRITIC CELLS.
There are two types of immune system in vertebrates, these are innate immune system and acquired immune system. The acquire immune system is also known as adaptive or specific immune system.
The adaptive immune system is made up of antibody responses and cell mediated responses, which are brought about by different types of lymphocyte cells, B cells and T cells. Cell mediated immunity involves the activation of natural killer cells, antigen specific cytotoxic T lymphocytes, macrophages, dendritic cells, and various cytokines; these cells are highly specialized cells and they are always released in response to antigens, they are responsible for the elimination or prevention of growth of invading pathogens.
Each of the adaptive immunity cells has its specific manner of operating. The dendritic cells and macrophages operate by engulfing invading pathogens and digesting them into thousands of antigens; these antigens are then detected and engulfed by antigens presenting cells.
Acquired immunity system always creates immunological memory after an initial encounter with pathogens and this leads to an improved response in case they come in contact with the pathogen again in the future. This mechanism is the basis on which vaccination operates.
