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olganol [36]
2 years ago
10

View Available Hint(s) Which statement regarding normal microbiota of the human respiratory system is FALSE? The upper respirato

ry tract is mostly sterile. The ciliary escalator in the bronchial tubes keeps the lower respiratory tract nearly sterile. Potentially pathogenic microorganisms are present in nonsterile portions of the respiratory tract but usually do not cause disease. The trachea normally may contain a few bacteria. Provide Feedback
Biology
1 answer:
RoseWind [281]2 years ago
5 0

Answer:

the second one

Explanation:

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1) Eubacteria cells lack a nucleus, and are therefore________
lara31 [8.8K]

Answer:

The correct answer is - prokaryotic and unicellular.

Explanation:

Eubacteria is known as the true bacteria and belongs to the prokaryotic type of cells which is characterized by no double-membrane organelles or the nucleus. All the genetic material is present in the cytoplasm itself.

These bacteria are single-cell microscopic organisms as they are very minute to see by the naked eyes and required a microscope to study. Another word for the single-cell organisms is unicellular.

5 0
3 years ago
What is the photosynthesis formula written in letters? <br><br> Helpp
Leno4ka [110]

Answer: The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.

6 0
3 years ago
Read 2 more answers
See the picture to help you. Its what you use to answer the question.
zhannawk [14.2K]
I would have to say d.Please let me know if i am right.

5 0
3 years ago
Read 2 more answers
Which of these blood samples most likely came from the left ventricle?
PilotLPTM [1.2K]
Sample A most likely came from the left ventricle, as this is the portion of the heart that receives freshly oxygenated blood to be pumped to different parts of the body. Oxygenated blood is blood that has had oxygen bounded to it by hemoglobin (a pigment made of iron found in red blood cells). The oxidation of this blood by the iron in the hemoglobin gives it the RBC bright red look. This blood containing the bright RBCs in transported to the left ventricle from the lung, after which it is spread throughout the body. Hence, in normal conditions of the heart, the Sample A most likely came from the left ventricle.
4 0
3 years ago
Cystic fibrosis is a devastating illness that affects the lungs, pancreas, and intestines.In 1989, researchers discovered that t
Natalka [10]

Answer:

There is no cure for cystic fibrosis, but treatment can ease symptoms and reduce complications.

Explanation:

1). For those with cystic fibrosis who have certain gene mutations, doctors may recommend a newer medication called ivacaftor. This medication may improve lung function and weight, increases the activity of Cystic fibrosis transmembrane conductance regulator (CFTR)protein and reduce the amount of salt in sweat. It has been approved by the Food and Drug Administration for people with cystic fibrosis who are age 6 and older. The dose depends on your weight and age.

2). For people with a certain gene mutation who are age 12 and older, another drug is available that combines ivacaftor with a medication called lumacaftor. This drug is called orkambi.

The use of Orkambi may improve lung function and reduce the risk of exacerbations.

I hope you're clear on this Daxxy

3 0
3 years ago
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