Explanation

The Labrador Retriever, commonly known as the Labrador.

It is a popular breed of dog known for its friendly, outgoing, and loyal nature. 

Originally bred to assist fishermen in Newfoundland.

Labradors are now popular family pets and working dogs in various roles, such as guide dogs and search and rescue dogs.

Explanation

Pteridophytes, such as ferns, are vascular plants that reproduce via spores rather than seeds.

They have a well-developed vascular system for transporting water and nutrients, distinguishing them from non-vascular bryophytes.

Explanation

The mass of Earth is approximately 6.0 x 10^24 kilograms (5.98 x 10^24 kg).

This is a widely accepted scientific value, based on various measurements and calculations, including:

• Gravity measurements
• Satellite orbits
• Seismological data
• Planetary formation models

Explanation

• Luminous objects are those that emit light of their own.
• Such as the sun, stars, light/electric bulbs, glowsticks, torch, lamps, candle, fire flies, lantern fish and neon tube.
• They produce their own light through various processes like incandescence, fluorescence, or bioluminescence.

Explanation

• In the periodic table, a columns is considered to be a groups (also known as a family or column).
• Groups are the vertical columns of elements in the periodic table.

Explanation

In the Linnaean system of classification, the order is a rank below class and above family.

It groups organisms that share common characteristics.

Explanation

Explanation

• Rod cells are responsible for vision in low light conditions, such as at night or in dimly lit environments.
• They are more sensitive than cone cells and can detect even a single photon of light.

Explanation

Plasma contains 91% to 92% of water and 8% to 9% of solids.

It mainly comprises of: Coagulants, mainly fibrinogen, aid in blood clotting.

Plasma proteins, such as albumin and globulin

That help maintain the colloidal osmotic pressure at about 25 mmHg.

Explanation

Heat of vaporization is the amount of heat energy required to convert a substance from its liquid state to its gaseous state, without changing its temperature.

This energy is used to break the intermolecular forces between the molecules, allowing them to escape into the gas phase.