<em>tHe energy that powers the water cycle comes from the energy of the sun as the sun evaporates water from the Oceans, lakes, rivers </em>
Hope this helped- have a good day bro cya) 
 
        
                    
             
        
        
        
If i am right can i plz get brainiest?
Answer: 
We use models in order to represent Earth's processes on a smaller scale so that it is easier to study them. ... Changes in any part of the Earth's system affects all other spheres.
 
        
             
        
        
        
The order of steps for the digestion of proteins will be; 
In mechanical digestion, the teeth grind food and break it in to smaller parts. 
Churning and the enzyme pepsin break down protein in the stomach
The pancreas releases enzymes trypsin and chymotrypsin
Tryspsin and chymotrypsin act on the proteins to break them down in the duodenum 
Amino acids are absorbed by the capillaries in the Jejunum  and lastly
The amino acids enter the blood stream and are circulated throughout the body. 
        
             
        
        
        
To test for the keystone species hypothesis, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem.
<h3>What is a keystone species?</h3>
A keystone species is an organism whose existence defines an entire ecosystem such that them, the ecosystem would be severely affected or may not exist. 
Trophic cascades are events which result in serious distortions in an ecosystem as a result of the removal or addition of a top predator. 
To test for the hypothesis of keystone species and trophic cascades, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem. 
Learn more about keystone species at: brainly.com/question/2044051
#SPJ1
 
        
             
        
        
        
 <span>Two prokaryotes turning into a eukaryotic cell began with a process called 
endosymbiosis. One large prokaryote engulfs (a process called 
endocytosis) one small, aerobically respiring prokaryote. The small 
prokaryote turned into a membrane-bound organelle, which prokaryotes do 
not have, and like we know, only eukaryotes have membrane-bound 
organelles. So that is how the eukaryotic cell structure evolved from 
prokaryotic cells, meaning that before this evolution, they were most likely symbiotic.</span>