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rusak2 [61]
4 years ago
14

How does the ductus arteriosus improve the efficiency of fetal circulation?

Biology
1 answer:
Bogdan [553]4 years ago
5 0
The ductus arteriousus is a blood vessel that connects the pulmonary artery to the descending aorta. Otherwise known as the ductus Botalli, this structure pumps blood into the fetus' non-functioning lungs from the right ventricle. This blood vessel will close at birth and becomes the ligamentum arteriousum.
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_________is/are an essential part of our nerves, spinal cord, brain, and cell membranes.
grigory [225]
The answer is B Adipose tissue. 

We know that it cant be C or D
And A was wrong.
8 0
3 years ago
How do organ cultures differ from cell cultures?
Over [174]

They can keep organ tissue alive for transplantation.

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3 years ago
The picture shows an organ system in the human body. What do these organs do in the human body?
olga2289 [7]

The organs represented in the image are the Brain, nerve, and spinal cords that monitor and react to changes in the body and its environment.

<h3>What are Organs?</h3>

Organs may be defined as an assemblage of tissues that structurally construct an operational unit specialized to accomplish a distinct operation and functions in the body of a living organism.

The nerves function in sending and receiving signals to the brain from external stimuli. They give the perception of feeling pain, relaxation, stress, etc to the brain according to the situations.

The complete question is as follows:

The picture shows an organ system in the human body.

Brain, Nerve, and spinal cord.

What do these organs do in the human body?

  • They filter pathogens and dead cells out of lymph before it returns to the blood.
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  • They release hormones that control the activities of cells and organs.
  • They identify and destroy things that are foreign or harmful to the body.

Therefore, the correct option for this question is B, i.e. They monitor and react to changes in the body and its environment.

To learn more about Organs, refer to the link:

brainly.com/question/1126526

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5 0
2 years ago
What types of rock make up the continental crust?
grigory [225]
Sedimentary and metamorphic rocks?
6 0
3 years ago
TRUE OR FALSE: CYANOBACTERIA IS A GROUP OF BACTERIA THAT USED TO BE CLASSIFIED AS ALGAE
nydimaria [60]

Answer:

FALSE MY GOOD SIR!!

Explanation:

It was once considered algae but it has been reclassified based on recent research.

8 0
3 years ago
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