Answer:
The Circulatory System
Explanation:
When blood is rich in carbon dioxide it leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. (All of which have to do with the circulatory system)
 
        
             
        
        
        
Answer: supersaturated
Explanation: A supersaturated solution is a solution in which the dissolved solute is more than the solvent can hold at that particular temperature. 
A solution is a substance which sontains a dissolved solute. A solution can be saturated, unsaturated or supersaturated. 
A saturated solution contains the maximum amount of dissolved solute a solvent can hold at that temperature.
An unsaturated solution contains less amount of solute than the solvent can hold at that temperature, this means that more solute can still dissolve in the solution.
A supersaturated solution contains more solute that can be dissolved in the solvent at that temperature.
 
        
             
        
        
        
Answer:
Explanation:
Diffusion is net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance.
 
        
             
        
        
        
Identify the process by which natural selection acts on Change in Population the surviving insects reproduce. The frequency of resistant insects in the population increases.
- Pesticides are any poisonous substances that are employed to kill animals, fungi, or plants and cause financial loss to crops or ornamental plants or pose a risk to domestic animals' or humans' health. 
- A pesticide is used on an insect population. Some insects possess a trait that renders them pesticide resistant. These flies remain. Without the gene, insects perish. 
- Insects that are still alive reproduce. Insects that are resistant are becoming more prevalent. Ecological Change Insecticide is used on a population of them. 
- Choosing Pressure Some insects have a trait that renders them pesticide resistant. These bugs are persistent. Without the gene, insects perish.
To learn more about Pesticides.
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