Answer:
1. Homeostasis 2. glucose
Explanation:
The question is incomplete. The complete quesetion is:
The outer layers of human skin are composed of dead cells impregnated with keratin and oil, which make the epidermis relatively impermeable to water, yet humans sweat freely in hot temperatures. This occurs because:
a) the salt in sweat allows it to diffuse through the skin.
b) sweat glands have special channels through the skin.
c) an osmotic gradient in sweat moves it through the skin.
d) sweating occurs in only those areas of the body where the skin is water permeable.
Answer:
b) sweat glands have special channels through the skin.
Explanation:
Sweat glands are present in the reticular region of the dermis. This part of the dermis contains bundles of thick collagen fibers, fibroblasts, and various cells. Sweat glands are present between these fibers. The ducts of sweat glands open on the tops of the epidermal ridges as sweat pores to release the secretions of the gland outside. This is how irrespective of the presence of the keratin layer on the outer surface of the skin, it releases sweat in hot summer days.
The correct answer is C. Serum C which contains ions.
Antidote is termed as substance which counteracts form of poisoning.
They are manufactured by injecting the toxin to the animal into small doses and you can extract the resulting antibodies from the hoste animal blood.
Some antidote like sodium bicarbonate, a person can use Aspirin which is used for many oral toxins.
Answer: CLONAL SELECTION OF B CELLS.
Explanation: B cells are also known as B lymphocytes( a type of white blood cell),when antigens binds to receptors in the cell,B lymphocytes in the body recognizes this antigen and selection is made from the pre-existing pool of different antigens,each with it's unique specification,this B lymphocytes undergo reproduction and from there a clonal population of cells are formed which kills/get rid of the antigen.
These antigens are eliminated by either the plasma cells that form immediately from the B lymphocytes secreting antibodies that fight the antigen,but in AIDS (people living with AIDS),the B lymphocytes that fight the antigen are known as memory B cells which are long lived from the stage of proliferation and are left to fight antigens in later life by forming plasma cells.so even if the helper T cells in AIDS patients are low,the memory B cells are stimulated to form plasma cells,activate antibodies to fight off life threatening infections.
Answer:
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Explanation:Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.