Your body uses fats as a supply and store of energy: a gram of fat contains more than double the amount of energy present in a gram of carbohydrate. The steroids in your body include some hormones. Other lipids make up the outer layer of all your cells, and the fatty sheaths that insulate nerve fibres.
Answer:
D. discovered chemolithotrophs in natural environments.
Explanation:
<em>Sergei Winogradsky is a Microbiologist, an Ecologist and a soil scientist from Russia who discovered chemolithotrophy mode of nutrition while studying a particular genus of bacteria.</em>
<em>He found that the bacteria genus had the ability to oxidize hydrogen sulfide with deposition of sulfur.</em>
Answer:
determined
Explanation:
Determined cells are embryonic cells that will generate all the cell types of the adult organism, with this process being independent of environmental inputs. Cell determination is defined by specific gene expression patterns in embryonic cells. In consequence, cell determination is defined as a genetic process where a particular cell fate can be broken down into two different states: specified (committed) or determined. If a cell is in a committed/specified state, the cell's fate can still be reversed or transformed, while if a cell in a determined state, the cell's fate cannot be reversed or transformed.
Answer:
Bulk flow
Explanation:
Generally when there is mass movements of molecules of the fluids from a high pressure gradients to low pressure gradients; that is down the concentration gradients, the process is called Bulk flow. In relation to cells, it is the exchange of material between cells through the pores of the adjoining cells. In xylem , water and minerals flow from high pressure roots to the leaves, and phloem transport food substances from the leaves the sources at high pressure to other parts of the plants.
The capillary transport mechanisms involves the movements of fluids, ions across the fenestration of the capillaries due to the hydostatic pressure of the fluid from the high pressure to the low pressure cellular environments.This is common in the glomerulus of the kidney, intestine, and some endocrine glands.
The single wall endothelial lining of capillaries forms continuous wall which allows passage of ions and fluids while restricting movements of large molecules. Generally the high pressure from the hydrostatic pressure forces these materials across the walls.
Simple diffusion which follows concentration gradient across membranes ensures distribution of substances across the walls for fast uptake by the cells.
The movement of Macromolecules across capillary wall is called vesicular transport.
Thus Bulk flow is odd.
Answer: Option A.
Explanation:
Regression analysis is a statistical model for estimating the relationships among different variables.
Regression analysis helps to predict the value of the dependent variable which changes when any one of independent variables varies, while other independent variables remain fixed.
Generally Regression analysis are classified in linear and non-linear regression.
Hence, the correct option is A.
