Explain in an essay how the food chain works?

1 answer:

6 0

Answer: A food chain describes how energy and nutrients move through an ecosystem. At the basic level there are plants that produce the energy, then it moves up to higher-level organisms like herbivores. ... In the food chain, energy is transferred from one living organism through another in the form of food. In ecology, a food chain is a series of organisms that eat one another so that energy and nutrients flow from one to the next. For example, if you had a hamburger for lunch, you might be part of a food chain that looks like this: grass rightarrow→right arrow cow rightarrow→right arrow human. But what if you had lettuce on your hamburger? In that case, you're also part of a food chain that looks like this: lettuce rightarrow→right arrow human

Explanation:

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GIVING BRAINLY !!!!!! Calculate the molar mass of MgBr2. “SHOW” Your work!

Dovator [93]

Answer:

184.113 g/mol

Explanation: The atomic mass of Mg is 24.3 amu. The atomic mass of bromine is 79.9. Therefore, the formula weight of MgBr2 equals 24.3 amu + (2 × 79.9 amu), or 184.1 amu. Because a substance's molar mass has the same numerical value as its formula weight, the molar mass of MgBr2 equals 184.1 g/mol.

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What happens to carbohydrate molecules inside a cell?

Aliun [14]

Primitive cells, for example, yeasts and microscopic organisms utilize all sugars a similar way, gave that they can transport the starch into the cell. Huge atoms that can't be transported are separated remotely by compounds that the cells discharge.
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3 years ago

Nitrogen gas effuses through an opening 1.59 times faster than an unknown gas.

Elodia [21]

A) Nitrogen has an ATOMIC mass number of 14, but nitrogen gas consists of N₂ molecules, so the mass to use in this problem is 28 g/mol. Rates of effusion ∝ 1/√(mass), so

√(mass unknown) /√28 = (rate N₂ effusion)/(rate unknown effusion) = 1.59 
∴ mass unknown = (1.59)²(28) = 70.78 g/mol 

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3 years ago

Atomic mass protons column electrons atomic number neutrons row 11 12 23

zysi [14]

A) Mass Number B) Protons and Electrons C) (I think group but I'm not 100% sure on this...) D) 12 (To work out the number of neutrons you do MASS number - ATOMIC number aka the number of protons so in this case you'd do 23-11=12) Hope this helps

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4 years ago

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prohojiy [21]

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