Forest biome: It gives us medicinal plants, woods for commercial purpose. Forests provides us rubber and fibers that is very important for the industries for making various products. They also contribute to perform ecological functions such as carbon storage, nutrient cycling, water and air purification. It also provides habitat to the wildlife.
Freshwater biome: We use fresh water for drinking water, irrigation, sanitation systems, and in industrial factories. Water used from groundwater, rivers and lakes is regained by rain and snowfall.
Marine biome: It serves huge amount of oxygen into the environment and absorbs the atmospheric carbon dioxide.
As a result of the activity of human there is a significant decrease in the number of trees. The products now used are synthetically made which were made up of natural fibers previously. The water source such as rivers, lakes, and ponds are polluted due to which many water borne diseases are increasing day by day. The accumulation of waste which are found in marine biome are reducing the number of flora present inside marine ecosystem.
Answer: directional selection
Stabilizing selection
Explanation:
Answer:
Explanation:
1- in passive transport there are 3types. One is diffusion, in which a molecule from the area of higher concentrations moves towards the area of lower concentration. Because diffusion is a type of passive transport that's why it is included in the method of it.
2- glucose is the simplest form of sugar. It moves from the cell membrane through the process of diffusion. Outside the cell level of glucose or it's concentration is high and inside the cell it's concentration is low. Though diffusion process glucose moves from the area of higher concentration to the lower concentration.
Answer:
B
Explanation:
The nuclear envelope is a double-layered membrane that encloses the contents of the nucleus during most of the cell's lifecycle.
Answer:
The answer is Kastle-Meyer test..
