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lidiya [134]
3 years ago
14

Organelles that are surrounded by two membranes and contain DNA are the

Biology
1 answer:
Snezhnost [94]3 years ago
3 0

Answer:

C

Explanation:

The nucleus contains most of the dna and the mitochondria contains a small amount

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The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels t
bekas [8.4K]

Answer:

The Right ventricle and the Left atrium.

Explanation:

The pulmonary circulation loop starts in the right ventricle, where the

deoxygenated blood is. From there, the blood goes through the pulmonary semilunar valves and into the pulmonary trunk. The pulmonary trunk divides into two arteries, the left, and right pulmonary arteries. These arteries conduct the deoxygenated blood to the capillaries in the lungs where we exchange the CO₂ for O₂. Then, the oxygenated blood goes to the pulmonary venules and the pulmonary vein. The pulmonary vein conducts the oxygenated blood from the lungs to the left atrium of the heart. Lastly, the blood goes to the left ventricle, where the systemic circulation starts.

6 0
3 years ago
Regarding survival of organisms, it was hypothesized thata. the tallest organisms survive.
Zepler [3.9K]
The answer is D 
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6 0
4 years ago
Describe an additional laboratory test that could be used to confirm the diagnosis of one of the patients who is not infected wi
Llana [10]

Meninges refers to the three layes of membranes surrounding the brain and spinal cord of the mammals. The inflammation of these protective membranes of the brain and the spinal cord caused by the infection of bacteria, virus or other microorganisms is called the meningitis.

A laboratory test to identify or rule out meningitis is the analysis if the cerebrospinal fluid (CSF) by lumbar puncture. CSF is a colorless fluid filling the ventricles of the brain and the central canal of the spinal cord. Lumbar puncture is a techinque of isolating the CSF from the sac sround the spinal cord using a needle under a local anesthetic. The sample is then analysed for the opening pressure which is normally between 6 and 18 cm of water in a patient who is not infected with meningitis. Also, the levels of glucose in CSF is above 40% of that in blood in non-infected persons. If lactate levels are less than 35mg/dl, this will also rule out meningitis.

8 0
3 years ago
A fishing rod is an example of a lever. Which diagram shows the correct positions of the input force, output force, and fulcrum
iragen [17]

Answer:

I looked for a picture of what you were talking about and I think I found the answer

Explanation:

If this is the picture then I think its the first choice

8 0
3 years ago
Read 2 more answers
What kind of air would be characteristic of a maritime tropical air mass?
iren2701 [21]

Answer:

B

Explanation:

because b is the correct answer

6 0
3 years ago
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