Explanation

A zygote is the first cell formed when a sperm fertilizes an egg.

All the trillions of cells in the adult human body arise through mitotic divisions from this single zygote.

Explanation

Lactose, also known as milk sugar.

It is a disaccharide composed of galactose and glucose molecules.

It is found in milk and other dairy products.

Explanation

72 beats per minute is a good heart rate.

Complete answer:

The resting person usually has a pulse rate between 70 (beats per minute) and 80 (beats per minute).

Your risk of dying from a heart attack is lower if your heart rate is below 80 beats per minute.

A normal resting heart rate ranges from 60 to 100 beats per minute.

Explanation

Amnesia means یادداشت کھو جانا

Amnesia refers to the loss of memory caused by brain injury, disease, or psychological trauma.

It can affect the ability to recall past events or form new memories.

Explanation

Leafy vegetables such as spinach, kale, swiss chard, collard greens, and beet greens

They contain 2.5-6.4 mg of iron per cooked cup or 14-36% of  RDI.

Rich sources of iron include both animal and plant-based foods.

Heme iron, found in meat, poultry, and seafood, is more readily absorbed by the body.

Non-heme iron, found in plant-based foods, is also important, and its absorption can be enhanced by vitamin C. 

Explanation

• The pupil is the small, circular opening in the center of the iris that appears as a black dot.
• It is the entrance point for light to enter the eye.
• It is responsible for controlling the amount of light that enters the eye by changing its size.

Explanation

Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body.

They have thick, muscular walls to handle the high pressure of blood pumped by the heart.

Explanation

Golgi bodies (Golgi apparatus) modify, package, and transport proteins and lipids.

They are key in processing materials for secretion or use within the cell.

Explanation

Dolly the sheep was the first clonned animal

In 1996, Dolly the sheep—the first mammal to have been successfully cloned from an adult cell—is born at the Roslin Institute in Scotland.

Explanation