Answer:
1.  The Heartlies in the front and middle of your chest, behind and slightly to the left of your breastbone.
2. Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
3. The valves prevent the backward flow of blood.
4. Arteries carry oxygenated blood while veins carry deoxygenated blood.
5. Eat Healthy, Stay Active
Explanation:
PLZ MARK AS THE BRAINLIEST
HAVE A GOOD DAY
: )
 
        
             
        
        
        
Answer:
Explanation:
The high clouds are cirrus,
The middle clouds are cumulus,
And the low clouds is stratus.
Hope this helps :)
 
        
                    
             
        
        
        
One option is that the samples run through gel electrophoresis is too small to be recognized (shorter strands of DNA travel further through the gel and larger strands travel shorter). The other option in that the restriction enzyme did not cut the DNA in the proper spot or there was a mutation in the bases that allowed for a mistake in the cutting; that is why there are 800 base pairs in one sample (that's a lot) An example of a mutation is that lets say the restriction enzyme was supposed to cut at the second G in GGACC. But if that G was turned into an A, then the restriction enzyme wouldn't cut there.
For number 5, you might have 800 because of the restriction enzyme cutting it wrong, a mutation that allowed for the cutting to not take place, or a fault in the sample taking.
I am an AP Biology student right now in Wisconsin. I just finished that worksheet this morning :) anymore questions just hit me up
        
             
        
        
        
The medial pre Frontal Cortex neurons synapting with the intercalated cells of Amygdala contains <u>GABA</u> as the neurotransmitter.
Option a
<u>Explanation:</u>
The Amygdala has two types of nerve cells getting attached with it primarily. They are the fibres from the mPFC or medial pre Frontal Cortex and the vIPAG or ventrolateral periaqueductal grey. These neurons do have different functions on the whole body. 
The fibres from the mPFC do have emotional function on the human body whereas the fibres of vIPAG do have an effect on the muscle tone
. And it's seen that both the nerve fibres that are getting attached with the intercalated cells of Amygdala do secrete GABA and are inhibitory GAB Anergic in nature.
 
        
             
        
        
        
The right option is; A. Solar
Solar energy is sustainable.
Solar energy is considered as a renewable energy resource. Solar energy is sustainable because it occurs naturally and it is derived from a source that is inexhaustible (sun). It can be depended on for the long term. All renewable energy sources such as geothermal, wind, biomass and hydro are sustainable.