variable shapes and variable volumes
In the past, whales had legs. From whales no longer having legs, its technically a mutation. With this, it means they can no longer go onto land, so they learned to adapt to the water.
Answer: Differentiation allowed the brain and kidney cells to become specialized for the structures and functions they possess.
Explanation:
Answer:
Contraceptive Education/Availability, Healthcare, Country Development, and Political Climate
Explanation:
When people are educated about proper contraceptive use they can still have sex without the consequence of pregnancy. The availability of contraceptives goes hand in hand with contraceptive education.
Advanced healthcare can help prevent disease through immunizations and further the life expectancy of the country's population. Hand washing can significantly lower the spread of disease.
The lower the development of a country the higher the birth rate is, while the higher the developed countries have a lower birth rate and their life expectancy is much longer.
The political climate of a country can greatly affect the population growth. The more negative the political climate is usually causes a smaller birth rate. For example when China implemented the one child policy their population growth declined;.
