Mitosis makes copies of the host, so it is a good option to increase the population because it is a fast process. Meiosis is important to create genetic diversity, because it makes four genetically different haploid cells, instead of two genetically identical diploid cells, as mitosis does.
When an object reflects all light, you will see white light.
Genetic engineering is applied to techniques like DNA cloning in which the steps are: step 1: DNA cutting from the parent source; step 2: DNA cut is pasted into the matrix to be modified; step 3: matrix is introduced to the host cell and step 4, vector DNA is isolated. Answer then is B.
An ecosystem is the area in which an animal lives. This can be like a coral reef or a forest.