1. SIMPLE DIFFUSION
Diffusion is the tendency of molecules to spread from regions of high concentration to regions of low concentration. This movement is due to a concentration gradient. This is the difference in concentration between two different regions. An example - when you spray perfume in the corner of a room and eventually you can smell it everywhere.
2. OSMOSIS
Osmosis is the diffusion of water across a selectively permeable membrane from a region of high water concentration to a region of low water concentration.
Answer:
In a biochemical cycle, chemical elements have time in different places which are called reservoirs.
A chemical element moves through a biogeochemical cycle which moves between "bio" and "geo". The "bio" in biogeochemical refers to biotic reservoirs or living organisms.
The "geo" in biogeochemical refers to Earth where a chemical element can find.
terrestrial carbon cycle, the abiotic reservoir from which living organisms directly obtain their carbon is the atmosphere.
In carbon moves from an abiotic reservoir to living organisms during a process called photosynthesis.
Carbon moves from living organisms to an abiotic reservoir in a process called cellular respiration
Answer:
B. store excess carbon underground
Explanation:
The fossil fuels have been formed on the basis of organisms that have died, mostly producers. These organisms have carbon stored in them. As they died and got covered by sediments, the carbon has been stored in the lithosphere. Since more and more sediments have been covering the stored carbon, it has been isolated and stored into the lithosphere for tens or even hundreds of millions of years, thus contributing to lowering the amount of carbon in the atmosphere for quite some time, and removing it from its natural cycle.
Xylem transports water and minerals from the roots to the leaves of the plant, where it is used in the production of food.
Chloroplast is a cell organelle and the site of photosynthesis in eukaryotic cells. Hence they are present in plant cells and algae, but not in animal cells or bacteria cells.
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