Explanation

• Neurons are the basic structural and functional units of the nervous system.
• They are specialized cells that transmit and process information through electrical and chemical signals.

Explanation

Medulla oblongata is a part of your brainstem,

that connects your brain to your spinal cord.

It also manages many of the most important functions of your body.

It is a cone-shaped neuronal mass responsible for autonomic functions ranging from vomiting to sneezing

Explanation

 The cytoskeleton is a network of protein fibers that runs throughout the cytoplasm of a cell.

It provides structural support, maintains cell shape, and is involved in various cellular processes like movement and organelle positioning. 

Explanation

The rare site of infection in the urinary tract is the Ureter. 

While UTIs most commonly affect the bladder and urethra (lower urinary tract), the ureters (tubes carrying urine from kidneys to bladder) can also be infected, though it's less common.

The kidneys are the least common site of infection in the urinary tract, and are considered a serious complication. 

Explanation

• Keratin is a type of protein that is found in hair, skin, and nails.
• Keratin is produced in cells called keratinocytes.
• These cells are found among other epithelial cells that line the surface of the body
  

Explanation

Answer:

B

When you enter a dark room with bright sunlight, you can't see anything at first. This is due to the small size of the pupil. As we enter the darkroom, our pupils dilate and more light comes into our eyes, so we can see.

Explanation

The average human exhales about 2.3 pounds of carbon dioxide on an average day

Explanation

 White blood cells, also called leukocytes, are primarily responsible for fighting infections by engulfing and destroying harmful pathogens through a process called phagocytosis. 

Explanation

• In a normal man, the average heart beat is 72 times per minute.
• But it may vary from 70-80 beats per minute.

Explanation

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