<span>The geologic time scale is divided into periods, which are then divided into epochs, which are further divided into ages. For example, the time of the dinosaurs lasted 3 periods (Triassic, Jurassic, Cretaceous), each period had 3 epochs (late, early, middle), and each age fit into one of those. Many epochs have more than 1 age associated with them.
As for the basis for differentiating the eras, I'm not so sure. The only one I can say for sure is the end of the Cretaceous, which is when the dinosaurs suddenly became extinct due to a meteor impact. I think the divisions are based on significant, global-scale events that changed the world.
Sorry its so long but that the answer i think >:) ur welcome
</span>
Answer:
<em>Increased immigration</em>
Explanation:
Population growth generally refers to increase in population size or the number of individuals in a particular area. Population growth is influenced by four fundamental factors which are;
- Death rate
- Birth rate
- Immigration
- Emigration
While death and emigration negatively affect population growth because individuals are exiting the population, immigration and birth add new individuals into the population and positively affect population growth.
Hence, from all the available options, only increased immigration can lead to an increase in a country's population growth rate.
This clouds are commonly called as a solar nebula. This is
where some of the planets, like our planet Earth are formed. This clouds, are
made of intergalactic space that is filled with clouds of gas (Helium and
Hydrogen) and dust which to be known as molecular clouds.
Lipids don't dissolve in water because of the different polarities. Water is polar and lipids are not polar which is why they don't dissolve. What this means is that they don't bond and don't share electrons and therefore don't mix.
Answer:
Which phase of mitosis is characterized by each pair of sister chromatids moving to opposite sides of the cells?
A) Metaphase
B) Anaphase
C) Prophase
D) Telophase
The answer is D) Telophase