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Radda [10]
3 years ago
9

Describe how the spread of diseases happens in communities. Subject: Anatomy and Physiology

Biology
1 answer:
den301095 [7]3 years ago
8 0
How diseases happens to spread in communities is the direct contact of bacteria, viruses or other germs from one person to another. This can happen when an individual with bacterium or virus touches, kisses, or coughs on someone who isn’t infected.
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3. The buccal cavity comprises ________,_______and __________.
Ostrovityanka [42]

The movement of food through the esophagus  is called peristalsis.

<h3>What is the buccal cavity?</h3>

The mouth is what we generally call the buccal cavity. It is an opening that contains the teeth and the tongue. The tongue plays the important role of serving as the organ of taste while the teeth serves to marsh food. It is the white strong structure that occurs in the mouth that enables is to masticate our food. Also in the mouth we have the salivary gland which plays the role of secreting the saliva and we know that the saliva contains from enzymes that makes it possible for the digestion of food to commence at the moth. It the follows that the buccal cavity is made up of the teeth, tongue and salivary glands.

Food moves into the stomach via the esophagus. Thus movement is slow and is aided by the muscles that line the gastro intestinal tract. As such, movement of food through the esophagus  is called peristalsis.

Learn more about peristalsis:brainly.com/question/15265456

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7 0
2 years ago
At the end of the practical class, all tissue and the remaining carcass of the cane toad must be placed __________.
nlexa [21]
C. in special waste containers provided
3 0
3 years ago
Which answer places the following events in proper order for pulmonary ventilation?
MArishka [77]

Answer:

The sequence is b, a, d, c.

Explanation:

Pulmonary ventilation may be defined as be defined as the simple process of intake of oxygen and exhale of carbon dioxide known as breathing. Diaphragm contracts during inspiration and relax during exhalation.

The pulomonary ventilation occurs when the skeletal muscle contraction occur by the stimulation from the brainstem nuclei. This leads to the changes in the volume of the thoracic cavity. The thorax changes its shape by contraction and relaxation, this leads to the pressure change. Then air flows down the pressure gradient.

Thus, the correct sequence is  b, a, d, c.

6 0
3 years ago
a promoter is ( A. binding site for DNA polymerase B.binding site for RNA polymerase C.start signal for replication D.stop signa
Nata [24]
C.) The prefix pro means to advance, in this case the promoter is the chemical that starts the replication
4 0
4 years ago
In bacterial and archaeal cells, the electron transport chain is located in the _________ whereas in eukaryotic cells, the elect
ANEK [815]

Answer:

Cell membrane of prokaryotes and Inner mitochondria of eukaryotes

Explanation:

Electron transport chain is a part of oxidative phosphorylation which is the third step of aerobic cellular respiration in living organisms. The ETC is a complex of proteins and mobile electron carriers. It occurs when electron is being transferred from one electron carrier to another, starting from NADH and FADH2. A proton pump which is used to synthesize ATP is generated at the end.

This ETC process occurs in the cell membrane of prokaryotic cells due to the fact that they lack a membrane-bound Mitochondrion. ETC occurs in the inner membrane of the mitochondria called CRISTAE in eukaryotic cells.

4 0
4 years ago
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