Hey there!
We know that a desk is not really huge as to use a meter, or a yard. But, when speaking about both feet and centimeters, that's when you may what to think a little bit.
I would suppose that using feet would also be to much also. Desk's run in sizes to a couple feet, maybe like 3 to 4 feet, therefore, that would not be our option.
Your answer: centimeters
Reason: Using centimeters, which they are small, they would be a better use of using this, mainly because you could get into more detail, as they are more smaller. 
 
        
             
        
        
        
Answer:
where are the assignment. ?????????????????
 
        
             
        
        
        
Answer:
Venous blood 
Explanation:
Arterial blood is carrying oxygen to tissues.....after delivering the oxygen it is venous blood and has less oxygen.
 
        
             
        
        
        
Carbohydrates, lipids, and protein have potential energy, and can be used in aerobic respiration to generate . 
Carbohydrate- A carbohydrate is a naturally occurring substance or a derivative of one, made composed of molecules of carbon, hydrogen, and oxygen. The most prevalent organic compound is a carbohydrate, and all life depends on them.
Lipids- Fatty, waxy, or oily molecules are referred to as lipids. They are soluble in organic solvents but insoluble in polar solvents like water.
Protein- Large, intricate molecules known as proteins serve a variety of vital functions in the body. They are crucial for the construction, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells.
To know more about the ATP, click on the below link, 
brainly.com/question/174043
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Answer:
The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.
Explanation:   
The mathematical models of Lotka-Volterra equations explain the existing interaction between species in which prey and predator influence and affect each other. The model follows a few assumptions,    
- The ecosystem is isolated and closed. There is no migration.
- The whole individuals are reproductively equivalent.
- In the absence of the predator, prey shows an exponential growth rate. The prey is in the ideal environment.  
- When there is no prey, the predator population decreases exponentially because of the lack of food. The predator environment is ideal, but it is limited by prey density.  
- The predation rate is proportional to the encounters rate, which also depends on density.  
- The predators affect the prey populations, inducing its decrease proportionally to the number of prey and predators present.  
- The prey population also influences the predator population proportionally to the number of encounters between the two species.  
In these equations, the variable D is the number of predators, and P the number of prey items.
The parameters are always constant:  
•	r1: prey growth rate.  
•	a1: predator hunting success.  
•	r2: predator growth rate.  
•	a2: the success of the predator in hunting and feeding.
In nature, many factors affect interactions, such as dense-dependent factors and dense-independent factors. Also, in reality, there are stochastic factors. Stochasticity refers to the variability in the system involving those factors that are affecting or influencing population growth. Stochasticity might be related to good years and bad years for population growth.
In real situations, the compliance of the whole assumption does not occur. The previously mentioned constants might vary, constantly changing the interaction between the predator and the prey. These parameters change in different degrees, resulting in varying circumstances for both species.