B ecosystems because that’s where intraspecific competition occurs
Answer:
Respiratory System: The respiratory system's main job is to move fresh air into your body while removing waste gases.
Nostril: To warm air on inhalation and remove moisture on exhalation.
trachea: Serves as passage for air, moistens and warms it while it passes into the lungs, and protects the respiratory surface from an accumulation of foreign particles.
bronchiole: To deliver air to a diffuse network of around 300 million alveoli in the lungs.
alveoli: To exchange oxygen and carbon dioxide molecules to and from the bloodstream during breathing.
pharynx: Helps the respiratory system by allowing air to make its way to the respiratory tract.
larynx: Produces vocal sounds and prevents the passage of food and other foreign particles into the lower respiratory tracts.
lungs: To help oxygen from the air we breathe enter the red cells in the blood.
ribs: To aid respiration and help protect the lungs.
diaphragm: Contracts and flattens when you inhale. Creates a vacuum effect that pulls air into the lungs, and relaxes when exhaling.
The best and most correct answer among the choices provided by your question is the third choice or letter C.
The population of a predator increases following an increase in the population of its prey is an example of how a biotic factor can affect the population dynamics in an ecosystem.
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Answer:
Starch
Explanation:
Digestion begins in the mouth. The teeth break down food from chewing through mechanical digestion.
Chemical digestion also begins in the mouth. Saliva moistens food, but it contains an important enzyme called amylase. This enzyme breaks down starch into simple sugars.
So, the first compounds that are digested are starch.
Answer:
As the Figures progress, you can see that the salt dissolves. Through Figure (a), the salt is more compact and has not dissolved, therefore, the molecules are close intact. From Figure (b), the water is starting to dissolve the salt. Here, the the salt begins to spread throughout the water which will form salt water. And lastly, through Figure (c), the water has fully dissolved the salt. The salt molecules are all spread and have combined with the 
.
