The immune system has many kinds of white blood cells to fight infections. HIV finds the white blood cells, called CD4 cells. But with cancer the white blood cells are being killed off.
Answer:
the ones with thicker coats are the most favorable and due to natural selection they will grow even thicker coats
Explanation:
Answer:
d,d
Explanation:
all the things are all the above because they have those to help the bears survive
Answer:
Pancreas secrets two hormones called insulin and glucagon which helps in maintaining the glucose level in the blood.
Explanation:
Pancreas secrets a hormone called as insulin, which helps the cell in absorbing the glucose by reducing the blood sugar and providing glucose for energy. On falling of the sugar level pancreas releases a hormone called glucagon. This glucagon informs the pancreas about the presence of low sugar in blood, after which it releases the stored glucose, and helps in raising the blood sugar level. Alpha cell of pancreas produces glucagon.
The correct option is:
B) lipid
Explanation:
A lipid is a biomolecule that is solvable in nonpolar solvents. Non-polar solvents are typically hydrocarbons used to melt another naturally happening hydrocarbon is.Any of a large group of organic mixtures that are oily to the touch and difficult in water. Lipids comprise fatty acids, oils, waxes, sterols, and triglycerides. They are a source of stored energy and are an element of cell membranes.
