Answer:
Fixation
Explanation:
The majority of nitrogen is fixed by bacteria which are symbiotic with plants which are converted to biologically useful forms by specialized bacteria. This occurs in two steps:
- bacteria convert ammonia in to (nitrites) NO₂,
- bacteria species convert it to NO₃ (nitrate).
Nitriates are a form of nitrogen that is usable by plants. It is assimilated into plant tissue as protein. The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
Answer:
Increases
Explanation:
Biomagnification refers to a phenomenon in which the harmful toxic chemical gest magnified or amplified or increases in the food chain trophic level.
The biomagnification is caused by the bio-accumulation of the toxic material in the organisms.
The harmful toxic chemical enters the food chain through eating like when the crops are sprayed with pesticides and insecticides runoff in the water. From there the toxic material enters the aquatic food chain like from the planktons to fish and then to vultures.
The organisms at higher trophic level die because of the accumulation of the infected lower trophic organisms.
Thus, Increases is the correct answer.
<span>In order to obtain the building blocks for larger carbohydrates, such as cellulose and starch, plants rely on photosynthesis to produce a smaller carbohydrate, glucose. During the process of photosynthesis, atmospheric carbon dioxide and water are combined in the presence of light to produce glucose and oxygen. This glucose is then polyemerized in order to create larger, more complex carbohydrates such as cellulose.</span>
Answer:
At least 17 PCR cycles or 16 PCR cycles
Explanation:
As we know -
In one chain of heating and cooling of polymerase chain reaction (PCR), the strands of DNA gets doubled.
The general mathematical representation of this is
where "n" is the number of PCR cycles.
It is given that DNA strands to be produced is 16 times the original quantity of DNA.
So the PCR cycle must be carried out at least 17 times in order to have DNA strand not less than 16 times the original quantity of DNA
Sweat evaporates, it is through the process of evaporation that heat is taken away from the body and into the surrounding atmosphere
