Answer:
Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump up.
Explanation:
Ca+2 , the plus 2 indicates the loss of 2 electrons
Answer:
Observations at different distances show galaxies of different ages and therefore different stages of evolution. Observations of those different galaxies helps us to learn abt galaxy evolution because observations of distant objects reveal them as they were in the past.
Explanation:
hope it helps
Answer:
The genetic constitution of an individual orgasm.
Explanation:
Homeostasis is the process by which organisms maintain internal environment constant. Anaplasia is the lack of differentiation of neoplastic cells. Histology is the study of the microscopic structures of tissues and a histologist is a person who has studied histology. Atresia is the absence of a normal opening or failure of a structure to be tubular. Therefore the correct answer is Homeostasis
