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PSYCHO15rus [73]
3 years ago
7

An ecologist is constructing a food web of a grassland ecosystem. if she wants to include decomposers, what arrows would she nee

d to add?
Biology
1 answer:
Zina [86]3 years ago
5 0
Decomposers are responsible for <span>breaking down dead organisms from any of the classes of a food chain. Therefore, if the ecologist would want to include decomposers in the food chain she could add arrows that went all the way from the upper classes of the food chain, as well as arrows from all the other classes, down to the bottom of the food chain, where the decomposers could be placed. This is because it is the decomposers that give back to the soil the nutrients needed for the plants, and ultimately all others in the food chain, to survive.</span>
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Empirical evidence of his ideas

Explanation:

The scientific process involves the formulation of hypotheses that enable to answer questions about the real world, and then to carry out experiments or observations that are used to confirm (or reject) such predictions. In the last 160 years, Darwin's ideas on 'descent with modification' have constantly been subjected to experimental assessment, and obtained data confirmed his observations. For example, molecular evidence based on the DNA and RNA -which constitute the genetic material of all living organisms- has shown the conservation of this process. In consequence, molecular evidence has been used to construct 'evolutionary' phylogenetic trees from DNA/RNA sequences. Moreover, evidence in genetics has shown the critical role played by mutations in the mechanism of natural selection proposed by Darwin, thus also confirming his theories. These are only some examples, and supporting evidence confirming Darwin's ideas has been collected from different research fields ranging from ecology to molecular biology.

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3 years ago
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cells

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What is the original source of almost all energy in most ecosystem
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As a river approaches the ocean, the water speed_______ and<br> sediments are__________
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As per the given scenario, the chances of an offspring as a male or female is 50% each.

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As per the given image, it is clearly shown that there is 50% possibility of being male or female offspring.

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