Answer and Explanation:
In a cell, the smaller the surface area in relation to its volume, the lower the rate of diffusion. The ratio of surface area to volume of an object decreases sharply with increase in its size. The materials move across the cell rapidly because the cell has a larger surface area to volume ratio thus the rate of diffusion of materials is high.
Just follow the rock cycle.
<span>(1) Rock is broken down </span>
<span>(2) Regolith is eroded/transported </span>
<span>(3) Regolith is dumped </span>
<span>(4) Layers begin to compact </span>
<span>(5) Sedimentary rock is buried and turned into metamorphic rock </span>
<span>(6) Metamorphic rock melts to magma </span>
<span>(7) Magma resurfaces as igneous rock</span>
Answer:
Free nitrogen is important for the living organism becuse nitrogen helps to build the structure of various biomolecules such as amino acids,proteins and nucleic acids such as DNA and RNA.
Explanation:
Importance of free nitrogen in case of animals
Nitrogen is an important constituent of porphyrin ring present in the hemoglobin protein protein which play a significant role in the transport of oxygen and carbon dioxide gas.
Nitrogen is also important in cell growth,repair and tissue development.We cannot intake the atmospheric nitrogen.Nitrogen is acquired by us through the consumption of protein rich diet.
Importance of free nitrogen in case of plants
Nitrogen is an important component of the chlorophyll pigment present in the leaves which helps in photosynthesis a process that deals with the formation of glucose by the utilization of sunlight.
Some parts of the energy rich compound Adenosine triphosphate is made up of Nitrogen.
Answer:
D
Explanation:
Fossils tell us where they came from.
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