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zlopas [31]
3 years ago
10

Explain how bacteria are both helpful and harmful to our bodies.

Biology
2 answers:
nexus9112 [7]3 years ago
7 0

This is the exact answer:

Bacteria are helpful because they produce oxygen, which our bodies need to breathe, and they help us to digest the food we eat. Bacteria are also helpful because they are used in medicine to help us overcome disease. Bacteria are harmful because they can cause tooth decay and illnesses that can be either common or quite serious.

yan [13]3 years ago
5 0
<span><span>Helpful bacteria: E. Coli are found in the intestines of humans and aid in digestion.
Streptomyces is used in making antibiotics.
Rhizobium are helpful bacteria found in the soil. They convert nitrogen in the soil.

Harmful bacteria:. Coli can also be harmful if food or water is contaminated with it and then eaten.
Listeriosis can cause individuals to become very ill and can even be potentially deadly. Examples of where it can be found are in shellfish, cold cuts, and unpasteurized milk.
Salmonella is very dangerous and lives in the intestinal tracts of humans . It is spread via feces. Foods like poultry and eggs can be contaminated with salmonella and cause severe diarrhea.
The human body contains numerous types of bacteria that are very beneficial and actually protect us from the harmful bacteria.</span></span>
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Answer:No

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3 years ago
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AlekseyPX

The gastrointestinal wall is composed of four layers or tunics:

  • Mucosa
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The innermost tunic of the wall is known as the mucosa or mucous membrane layer. The digestive tract's lumen is lined with it. The mucosa comprises epithelium, a layer of lamina propria, a loose layer of connective tissue, and the muscularis mucosa, a thin layer of smooth muscle.

The mucosa is surrounded by a substantial layer of loose connective tissue known as the submucosa. Blood arteries, lymphatic vessels, and neurons are also present in this stratum. The adventitia is a connective tissue that makes up the digestive tract's outermost layer above the diaphragm. It is referred to as serosa below the diaphragm.

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2 years ago
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Eduardwww [97]

Explanation:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. ... Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.

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