Answer:
A. Obtaining nutrients and getting rid of waste
Answer:
Anomalous expansion
Explanation:
Anomalous expansion of water is the abnormal way water expands when exposed to low temperature.
At 4 degree Celsius , the density at the top layer is usually at the Maximum which makes the water sinks down and then the water in the lower layer rises up.
When the temperature drops below 4 degree Celsius, the water molecules at the top then freezes leaving the denser molecules at the bottom which doesn’t freeze as a result of their high density.
This way, organisms can survive in the water due to the lower layer not freezing.
Answer:
D.Polygenenic
Explanation:
A polygenic trait is a phenotype that is influenced by more than one gene. Examples are height or skin color.
Mitosis and Specialization
Mitosis is a process that occurs during cell cycle which involves the division of a cell to produce two new cells that are identical to itself. Also, it is the splitting of DNA in the cell’s nucleus into two equal sets of chromosomes. Furthermore, mitosis consists of four basic phases which were prophase, metaphase, anaphase and telophase.
Cell Specialization is a process where generic cell changes into specific cells for the purpose of specific task within the body. Furthermore, they are very important in the development of embryos.
