Answer:
a layer or a series of layers of rock in the ground. ,
a level or class to which people are assigned according to their social status, education, or income.
Explanation:
Answer:
Cytokinesis
Explanation:
Cytokinesis is similar to telophase. The cell devides it cytoplasm into two pieces which creates two daughter cells.
Sound waves are both compressional and longitudinal, (although we frequently draw them as transverse waves).
Longitudinal waves are where the particles of matter collide into one another, pushing them into the next and then oscillating back. This is how sound travels. This is also why sound can only travel through a medium, it cannot travel through a vacuum, as is shown here:
The Precambrian eon is separated from the Phanerozoic eon in the fossil record because of the sudden appearance of organisms.
Explanation:
Precambrian eon is the initial existence on earth that can be predicted by the study of rocks and remaining of fossils. It has been seen as the existence of skeleton in this era, before this era no such things has been observed, even the development of sexual reproduction.
The Phanerozoic era comes after the Precambrian era, more advanced kinds of fossils of animals had been observed in this era. Phanerozoic era period of life on earth. Large organisms sudden appearance are seen in the Phanerozoic era i.e. First dinosaurs, mammals, fishes, angiosperms,first vertebrates etc.
Answer:
Explanation:
There are three known subatomic particles: Electrons, Protons and Neutrons
Electrons
- It has a charge of -1
- It has negligible mass
- it is found outside the nucleus
Protons
- It has a charge of +1
- It has a mass of 1
- It is found in nucleus
Neutrons
- It has no electrical charge
- It has a mass of 1
- It is found in the nucleus
