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3 years ago

If you run a marathon, your body will release _____ to elevate your mood and reduce your pain.

1 answer:

mihalych1998 [28]3 years ago

4 0

B - Endorphins

A and C are incorrect as those are released respectively during a fight or flight stage and during extreme stress.

D is incorrect as that is released when there is not enough oxygen in the muscles.

Hope this helps!

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List 3 positive things that humans use algae for:

Svetradugi [14.3K]

Here's a few I got off google

#1: Algae Is Efficient to Create BioFuel.

#2: Algae Can Use Land That Would Otherwise Go to Waste.

#3: Algae Can Be Used for Animal Feed.

#4: Algae Can Function As An Energy Source.

#5: Algae Can Be Used To Create Vegetable Oil.

#6: Algae is a Great Human Food Supplement.

Use which ever ones you want

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3 years ago

_____ receives enough light but not enough nutrients to be a productive ecosystem

tigry1 [53]

I believe its, the zone but im not to sure

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3 years ago

_______________ can be accidental or intentional, and it can cause erosion.

maksim [4K]

Fire can be accidental or intentional, and it can cause erosion.

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3 years ago

Read 2 more answers

Differentiate 10sinxcosx

Harman [31]

Answer:

$10\,cos\,2x$

Explanation:

To differentiate: $10\,sinx\,\,cos x$

Solution:

Use product rule: $[f(x)g(x)]'=f'(x)g(x)+f(x)g'(x)$ and the following formulae:

$(sinx)'=cosx\,,\,(cosx)'=-sinx$

$(10\,sinx\,\,cos x)'=10[(sinx)'cosx+(sinx)(cosx)']\\\\=10[cosx\,cosx-sinx\,sinx]\\\\=10[cos^2x-sin^2x]$

Use $cos^2x-sin^2x=cos2x$

$(10\,sinx\,cosx)'=10\,cos2x$

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2 years ago

Describe the path of nitrogen from the atmosphere to plant protein nitrogen fixing bacteria

serg [7]

78% of air is in nitrogen

6 0

3 years ago