Explanation

Digestion begins in the mouth, where food is chewed and mixed with saliva that contains enzymes to break down carbohydrates. 

Here's a brief overview of the digestion process:

• Mouth: Food is chewed and mixed with saliva that contains enzymes to break down carbohydrates.
• Esophagus: Food is swallowed and passes through the esophagus into the stomach.
• Stomach: Food is mixed with stomach acid and enzymes to break down proteins and fats.
• Small Intestine: Nutrients are absorbed into the bloodstream.
• Large Intestine: Water and electrolytes are absorbed, and waste is eliminated.

Explanation

The human eye is most sensitive to yellow-green in sunlight.

The sensitivity of the human eye to light of a given intensity varies widely over the wavelength range of 380-800 nm.

Explanation

The heart is the first organ to form in the developing fetus.

Heart is formed after one month of pregnancy.

Explanation

The type of nerve impulse in a non-myelinated neuron is continuous. 

In unmyelinated neurons, the action potential travels along the entire axon membrane, requiring continuous depolarization and repolarization.

Whereas in myelinated neurons, the action potential "jumps" from node to node (saltatory conduction), which is much faster. 

Explanation

• The normal range of respirations in an adult are:12-20 Breaths Per Minute
• ***
• A person's respiratory rate is the number of breaths you take per minute.
• The normal respiration rate for an adult at rest is 12 to 20 breaths per minute.
• A respiration rate under 12 or over 25 breaths per minute while resting is considered abnormal.
• **
• Respiration rates may increase with fever, illness, and other medical conditions. 
• ***
•  we exhale Carbon Dioxide during respiration 
• The average human exhales about 2.3 pounds of carbon dioxide on an average day

Explanation

Explanation

Answer:

C

White blood cells (WBC) are  part of the immune system. They help fight infections and protect the body from other foreign bodies. When foreign infectious  organisms attack on our immune system, white blood cells response against them and produced antibodies to fight against these infectious agents called antigens. Low white blood cells make you more susceptible to serious infections. Due to low white blood cells content, antibodies production also drcrease.

Explanation

گردے دراصل لوبیئے کی شکل کے دو عدد اخراجی اعضاء ہیں جو خون میں پیدا ہوتے رہنے والے غیر ضروری اجزاء (بطور خاص یوریا) کو خون سے الگ کر کے یا چھان کر، پانی کے ساتھ پیشاب کی شکل میں جسم سے خارج کردیتے ہیں۔

Explanation

Immunoglobulin G (IgG) is the most abundant antibody in the human body.

It plays a crucial role in long-term immunity by recognizing and neutralizing pathogens.

IgG antibodies are produced after exposure to an antigen, such as a vaccine.

They persist in the bloodstream for an extended period, allowing the body to respond to subsequent infections with the same pathogen quickly.

IgG can also cross the placenta, providing passive immunity to newborns. 

Explanation

The muscles, tissues, and blood all are made up of Proteins

Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts.

The tissue is highly cellular and is well supplied with blood vessels.

The cells are long and slender so they are sometimes called muscle fibers,

and these are usually arranged in bundles or layers that are surrounded by connective tissue.

Actin and myosin are contractile proteins in muscle tissue.

Muscle tissue can be categorized into:

skeletal muscle tissue,

smooth muscle tissue,

and cardiac muscle tissue.

ND5.3.2023