Your body temperature begins to rise during strenuous exercise in hot weather. specialized nerve cells on the skin detect an increase in temperature; your brain detects an increase in blood temperature. you begin to sweat and as the sweat evaporates, more latent heat of vaporization is removed from your body and you cool down. in this case, your skin and brain acts as in maintaining homeostasis. a) stimuli b) receptors c) negative feedback d) self-corrective mechanisms

The right option is B. Receptors

rising sea temps which are causing coral reefs to bleach and die out

glaciers are melting causing sea levels to rise wgich could flood out land

explanation:

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.