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trapecia [35]
3 years ago
9

How might nutrients make their way from downstream to the upstream headwaters of the river?

Chemistry
1 answer:
Helga [31]3 years ago
3 0

Answer: A stream carves its path through a watershed, eroding nutrients from the soil and rock, or taking them from plants.

Explanation: Because, those nutrients flow through different branches of the food web. They may stay in that watershed for a long time or they may leave.

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Answer:ye

Explanation:

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3 years ago
!! ANSWER QUICK !!
kari74 [83]

Answer:

I can use a dichotomous key. It helps me classify objects by sorting it out with "yes" and "no" questions.

or

I can use a Punnett Square. It helps me classify what genes the offspring will receive simply by figuring out the recessive and dominant genes as well as the hetzygous and homzygous.

Now give an example of which ever chart you choose by drawing it if that is required. For the Punnett Square label each of the squares Top right Hetzygous, top left dominant, bottom left recessive, bot-tom right homzygous. And for the dichotomous key put a 5-7 length branch showing the animals that have fur, can breathe under water, what cannot or doesn't have those traits. or something similar

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3 years ago
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Which electron configuration represents the electrons of an atom in an excited state? * 2-3 2-7-1 2-8 2-8-1​
Lemur [1.5K]

2-7-1

<h3>Further explanation </h3>

Electrons can move the shell up or down by releasing energy or absorbing energy  

Excited electrons show higher electron transfer to the shell by absorbing energy  

So it can be concluded that there are 2 conditions:  

Ground state is the state of electrons filling shell with the lowest energy levels.  

Excited state is the state of electrons which occupies a higher energy level  

The state of excited electrons can be seen from the presence of electrons which do not fill the skin completely but fill the skin afterward  

2-7-1

From its 8 electron configuration, filling 3 shells, 2 electrons in the firs shell, 7 electrons in the second shell and 1 electron in the third shell

the electrons in the third shell should fill the electrons in the second shell first according to Aufbau rule (lower energy shells)

\tt  1s^22s^22p^4\rightarrow ground~state\\\\1s^22s^22p^33s^1\rightarrow excited~state

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3 years ago
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Step three: balance the chemical equation.
5 0
3 years ago
What does the word distal mean?
erica [24]

There are two meanings to the word "Distal"

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      Geology

    2.   relating to or denoting the outer part of an area affected by geological activity.

       

5 0
3 years ago
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