BIOLOGY HIGH SCHOOL

What is the best definition of an electric circuit?A. A path of magnetism.
B. A path of chemical to mechanical energy.
C. A path that an electric current follows.

Answers

Answer 1

Answer: C.) A path that an electric current follows

Answer 2

Answer:

Final answer:

An electric circuit is a closed loop or pathway along which an electric current flows

Explanation:

The best definition of an electric circuit is Option C: A path that an electric current follows.

An electric circuit is a closed loop or pathway along which an electric current flows. It consists of various components such as a voltage source, conductors, and load. For example, when you plug in an electrical appliance like a light bulb into a wall socket, the circuit is completed, and electricity can flow from the source to the load, allowing the bulb to light up.

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Which of the following is not true of saliva?A. cleanses the mouth
B. contains enzymes that begin the breakdown of proteins
C. moistens food and aids in compacting of the bolus
D. dissolves food chemicals so they can be tasted

Answers

The answer is B. contains enzymes that begin the breakdown of proteins.

Saliva is watery substance secreted by salivatory glands. It cleanses the mouth and maintenance oral hygiene. It moistens the food, so the created food bolus could easier pass into the esophagus. It also carries food chemicals to taste receptors so they can be tested. It contains enzymes involved in the food digestions. Some of them are amylase, which begins the breakdown of the starch, and lipase, which begins the breakdown of triglycerides. There are no enzymes in the saliva that break down proteins.

Final answer:

Saliva cleanses the mouth, moistens and compacts food, and dissolves food chemicals for taste.

Explanation:

Saliva is a clear liquid that is produced by the salivary glands in the mouth. It serves several important functions in the digestive process. It keeps the mouth clean by cleansing it and helps to remove food particles. Saliva moistens food and aids in the compacting of the food into a bolus, which can be easily swallowed. Additionally, saliva contains enzymes such as amylase that begin the breakdown of carbohydrates, not proteins. Lastly, saliva dissolves food chemicals so they can be tasted.

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Erosion on a mountain range that was pushed up as a result of two continental plates colliding will lead to the formation of what

Answers

I believe the answer is sedimentary rock

Which element's cycle depends on kinds of bacteria to keep the element available to other organisms?A. carbon
B. hydrogen
C. nitrogen
D.phosphorus

Answers

I believe it is the Nitrogen cycle although all of the cycles use bacteria. Only nitrogen requires nitrogen fixing bacteria to keep the cycle going.

in a plant algae, fungi, and most bacteria cells, there is a rigid layer that surrounds the cell membrane and gives protection, support, and shape to the cell. what is this layer called?

Answers

It is called the cell wall. It provides rigidity to the cell.

[HELP ASAP]Proteins are made up of long chains of which of these building blocks?

a. saccharides
b. nucleotides
c. fatty acids
d. amino acids

Answers

Answer:

amino acids

Explanation:

Saccharides are for polysaccharides

Nucleotides are for DNA

Fatty acids are for lipids

Amino acids line up in a chain during translation into a protein.

Final answer:

Proteins are made up of long chains of building blocks called amino acids. There are 20 different amino acids that can be combined to create a protein. The sequence of these amino acids determines the protein's structure and function.

Explanation:

Proteins, which are integral to bodily processes, are composed of long chains of building blocks known as amino acids. There are 20 different types of amino acids that can be combined to make a protein. The sequence of the amino acids determines the structure and function of each protein. Unlike saccharides, which make up carbohydrates, nucleotides that build up nucleic acids, and fatty acids which are the building blocks of lipids; amino acids are unique in their role as the building blocks of proteins.