Answer:
Alveoli
Explain:
They are the workhorses of your respiratory system. You have about 480 million alveoli, located at the end of bronchial tubes. When you breathe in, the alveoli expand to take in oxygen. When you breathe out, the alveoli shrink to expel carbon dioxide.
Answer:
The process where organisms naturally go and adapt to enviroment where they can most likely survive and produce more offspring.
Explanation:
Theory was first made by Charles Darwin and is now believed to be the main process that brings about evolution.
Answer:
c
Explanation:
just give it a shot most answer are usually b and c
Answer:
<u>frictional</u>
Explanation:
This scenario follows Newton's third law of motion which alludes to the fact that for every force or action exerted by a person on a body there is an equal and opposite reaction exerted back.
Because there is a limited frictional force (a force exerted by an object when an object moves across it) between
- the canoe and
- water surface (the opposite force/reaction)
Here, the paddle helps the boatman apply a force on the water, resulting in the opposite amount of force been sent back; pushing the boat forward.
Protozoans like paramecium have protoplasmic invasions called gullets, which aid in these species' food uptake and digesting.
<h3>What are protists?</h3>
Protists have eukaryotic cells, as opposed to bacteria, these organisms feature cytoplasmic membrane-bound components as well as a nucleus that is membrane-bound.
Another kind of protists is zooflagellates, they resemble animals and use flagella to move. Flagella are whip-like organelles that rapidly spin and help an organism move through the water like a boat's propeller.
The majority of zooflagellates have one to eight flagella that aid in movement, protists do not belong to a monophyletic group of creatures.
Therefore, The paramecium's gullet functions as the buccal cavity where food is transformed into food vacuoles for digestion.
Learn more about protists, here:
brainly.com/question/3508403
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