<span>A narrow slab of minerals that is different from the surrounding rock is known as a Vein.
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Answer:
There are two types of endoplasmic reticulum: rough endoplasmic reticulum (rough ER) and smooth endoplasmic reticulum (smooth ER). Both types are present in plant and animal cells. The two types of ER often appear as if separate, but they are sub-compartments of the same organelle.
Explanation:
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Animals, plants and other lfe forms are seen on other continents by moving or traveling
Wilts, wood rot, sooty molds, rusts, and smuts. These are all types of plant diseases caused by Fungi. For example, dry rot is a wood decay caused by certain species of fungi that digest parts of the wood which give the wood stiffness and strength. All of them are plant diseases caused by fungi.
Answer:
From 280 ppm to 393 ppm.
Explanation:
In 1750, the amount of carbondioxide in the atmosphere was 280 ppm which increases by 393 ppm in 2012. This is because of the pollution occurs due to industrialization and number of vehicles increased in the world. More carbondioxide gas is released due to the smoke produced from burning of fossil fuels in industries and vehicles. So we can say that pollution is the main reason for increasing carbondioxide concentration in the atmosphere.
