Explanation

The Earth is the fifth largest planet in the solar system. 

The order of the planets by size is:

1. Jupiter (largest)
2. Saturn
3. Uranus
4. Neptune
5. Earth
6. Venus
7. Mars
8. Mercury (smallest)

Explanation

The diaphragm is a muscle that plays a crucial role in respiration.

It helping to expand and contract the lungs for breathing.

Explanation

A baby’s heartbeat starts before he is born.

It typically around six or seven weeks into pregnancy.

As the heart begins to develop and function while the fetus is still in the womb.

Explanation

The cave squeaker (Arthroleptis troglodytes) is a species of frog in the family Arthroleptidae.

It is endemic to the Chimanimani Mountains in Zimbabwe.

Explanation

Apiculture is the science and practice of rearing honey bees for honey, beeswax, and other products.

It involves the management and maintenance of bee colonies.

As well as the harvesting and processing of honey and other bee products.

Explanation

Isaac Newton proposed the law in 1687

and utilized it to clarify the observed movements of the planets and their moons.

The law of Gravitation had been mathematically formulated by Johannes Kepler in the early 17th century.

ND28-4-2023

Explanation

Geographers broadly divide the Earth into three separate climate zones: 

1. Tropical (near the Equator)
2. Temperate (north and south of the Equator)
3. Polar (the farthest Northern and Southern regions)

Explanation

The vitreous humor, sclera, and iris are all parts of the eye.

The vitreous humor is a clear gel that fills the space between the lens and the retina.

The sclera is the white outer layer of the eye.

The iris is the colored part that controls the size of the pupil.

Explanation

Blood cells are made in the bone marrow.

The bone marrow is the soft, spongy material in the center of the bones.

It produces about 95% of the body's blood cells.

Explanation

Arachnology is the scientific study of spiders and other arachnids, such as scorpions, ticks, and mites.

Arachnologists are biologists who specialize in the study of arachnids, including their behavior, ecology, evolution, and systematics.