A food web refers to the graphical or pictorial representation of the food consumption interconnections among living organisms in a particular ecosystem. The food web usually have a base, a middle section and a top section. The base of the food web is made up of plants, which are called the producers. Plants are able to make their own food and others in the web depend on them for food. The middle section is made up of primary consumers, which are those organisms that feed directly on plants while the top section is made up of secondary consumers, which are those that feed on primary consumers.
Hello,
The chemical change that takes place is water and electrolytes are removed from the food being digest.
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Commensalism :)
in case when bacteria and human, both are benifited.
Placing organisms at 4° C is bacteriostatic.
Hence option (b) is correct.
Bacteriostatic refers to an agent's ability to stop bacterial growth (i.e., it keeps them in the stationary phase of growth).
Bacteriostatic: Able to prevent bacterial reproduction or growth.
A substance that kills bacteria is known as a bactericidal.
Health and safety at hazardous waste sites depend on decontamination, the procedure of removing or neutralizing pollutants that have accumulated on employees and equipment.
Sterilization is the process of eliminating or destroying all microbial life (including vegetative and spore forms), and it can be accomplished through a variety of physical and chemical techniques.
Germicidal simply means destroying germs.
At 4°C, the organism stops its growth and reproduction.
Hence, Placing organisms at 4° C is bacteriostatic.
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Answer:
A
Explanation:
a - What happens when organisms don't decompose? If there were no decomposers, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.
b - What happens when a catastrophic mass extinction occurs? A mass extinction event is when species vanish much faster than they are replaced. This is usually defined as about 75% of the world's species being lost in a 'short' amount of geological time - less than 2.8 million years
c - What does the shifting of tectonic plates cause? At the “seams” where tectonic plates come in contact, the crustal rocks may grind violently against each other, causing earthquakes and volcano eruptions. The relatively fast movement of the tectonic plates under California explains the frequent earthquakes that occur there.
d - Volcanic ash doesn't actually do that.
Now, how do fossil fuels form? After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Fossil fuels are formed when the organic matter that has been buried deep within the earth is subject to heat and pressure over millions of years. In both cases, heat and pressure are critical to the formation of fossil fuels.
so your answer is a
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