What is a Meteor?
A meteor is a small celestial object that enters the [...]
What are Ovoviviparous Animals?
Ovoviviparous animals are species in which embryos develop inside eggs [...]
What are Natural Satellites?
Natural satellites, commonly known as moons, are celestial bodies that [...]
What are Empirical Sciences?
Empirical sciences, also known as empirical research or empirical studies, [...]
What are Lipids?
Lipids are a group of molecules that play a fundamental [...]
What is an Embryo?
An embryo is the initial stage of development of a [...]
What is the Placenta?
The placenta is a specialized organ that forms during pregnancy [...]
What is Sperm?
Sperm is a male reproductive cell produced in the testicles. [...]
What is a Thunder?
A thunder is the loud and booming sound that occurs [...]
What is Lightning?
A lightning bolt is a very intense electrical discharge that [...]
