Answer:
Carbon dioxide, methane, and water vapour are the most important greenhouse gases.
<span>A non-example of diffusion is a brick.
Diffusion is termed as movement of molecules from a region of high concentration to a region of low concentration. A good example is how oxygen enters the body during external respiration which is referred to as breathing.
Some of examples of diffusion are diffusion of mineral salt in the soil water into the root hairs cells. Diffusion of oxygen into the carbon dioxide and cell out of the cell in a unicellular like an amoeba, Diffusion of oxygen through the lungs and carbon dioxide out to the lungs of mammals.
Diffusion of carbon dioxide and oxygen out by the leaf through the stomata.</span>
Answer:
<u>Option-(True):</u> The following statement is true in all sense, as the "Cytotoxic T cells and NK cells kill by secretion of proteins. The first called granzyme which forms complexes that penetrate the cell membrane and allows the passage of the apoptosis inducing protein perforin to enter the targeted cell."
Explanation:
- In order to make it more difficult for the pathogens and other foreign particles to stay inside the human body, the defense mechanism of the human body system has evolved itself to great extents as there are different level of immune layers and more over cells that either helps in the recognition of these anti-bodies or attacks them to be eliminated from the given system.
- As the hazardous or cancer cells which are not required to stay inside the human body is removed with the help of these lymphocytes inside the immune system of the human body.
Oxygen is required for cellular respiration<span> and is used to break down nutrients, like sugar, to generate ATP (energy) and carbon dioxide and water (waste). </span>Organisms<span> from all kingdoms of life, including bacteria, archaea, plants, protists, animals, and fungi, can use </span>cellular respiration<span>.</span>
Answer:
<em><u>30 units</u></em><em><u> </u></em><em><u>of </u></em><em><u>energy</u></em><em><u> </u></em><em><u>will </u></em><em><u>be </u></em><em><u>available</u></em><em><u> </u></em><em><u>to </u></em><em><u>primary</u></em><em><u> </u></em><em><u>predators.</u></em>
Explanation:
Using 10 % law i.e at each step 10 % of energy is transferred to the next trophic level at the rest of either consumed or lost to environment..
so plants have = 3000 units
herbivores = 10% of 3000 = 10/100 × 3000
= 300 units
so primary predators will have = 10% of 300
= 10/100 × 300 = 30 units