Answer:
A. Fertilization
Explanation:
The development of a human being begins with fertilization, a process by which two highly specialized cells, the spermatozoon from the male and the oocyte from the female, unite to give rise to a new organism, the zygote.
Answer:
Main Difference – Mutation vs Variation
Mutation and variation are two simultaneous events involved in the process of evolution. The main difference between mutation and variation is that mutation is an alteration in the nucleotide sequence of a gene whereas variation is any difference between individuals of a particular species. Mutations may arise due to environmental factors such as chemicals and UV. Germline mutations are inherited by the offspring. Somatic mutations occur in the ordinary body cells. Variation can occur due to mutations, genetic recombination, gene flow, genetic drift, random mating, random fertilization, and environmental factors. Variation may also cause evolution through natural selection.
Answer:
2
Explanation:
North East trade winds and South East trade winds
C a broad,evidence-based explanation for a phenomenon
Answer:
Due to their large size.
Explanation:
Seven plates considered as the major plates on the earth because of their large size. African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American plates are the seven major plates present on the earth. The importance of identifying the major plates is that they provide information about the location of happenings earthquakes and volcanic eruption.