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weeeeeb [17]
3 years ago
11

Sean has a bag with 15 marbles,six of the marbles are red,and 9 are blue. If Sean draws one marble from the bag,the probability

of drawing a red marble is......%
Biology
1 answer:
Kaylis [27]3 years ago
8 0

Answer:4

Explanation:

Total number of marbles:5

Number of red marbles:6

6/15=2/5=0.4

0.4x100 = 40%

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Approximately  10% of the stored energy of  an organism at  one level of a food web is transferred to the tissue of the organism that consumes it at the next level of the food web.

<h3>What is food web and its importance ?</h3>

A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is a part multiple food chains. The importance of food webs is to describe feeding relationship among species in a community.

On an average only about 10 percent of energy stored as biomass in a trophic level is passed from one level to the next.

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