3 years ago

True or False the way energy flows through an ecosystem can be shown through a food web

2 answers:

6 0

True, the food web shows how energy from each producer travels to a consumer or from one consumer to the next. For example, from grass to rabbits and mice to foxes, etc.

spayn [35]3 years ago

3 0

True energy passes from animal to animal or plant to plant

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Unknown element has two isotopes. Isotope A has a mass of 34 amu and abundance of 52%, isotope B has a mass of 33 amu and abunda

ZanzabumX [31]

Answer:

x = 33.52 amu

Explanation:

It is given that,

Isotope A has a mass of 34 amu and an abundance of 52%, isotope B has a mass of 33 amu and an abundance of 48%.

Let x is the average atomic mass of this element. It can be calculated as follows :

$x=52\%\ \text{of}\ 34+48\%\ \text{of}\ 33\\\\x=\dfrac{52}{100}\times 34+\dfrac{48}{100}\times 33\\\\x=0.52\times 34+0.48\times 33\\\\x=33.52\ \text{amu}$