Answer:
Complete orbit around the Sun takes about 365.26 days. The Earth’s rotation axis is tilted relative to the imaginary space orbit around the Sun.  This imaginary plane is called the ecliptic plane.  Position of northern and southern hemisphere toward the Sun varies depending on the season
Explanation:
Answer: genetics and mutation generate some of the variety that natural selection acts on
Explanation:
Domain Archaea
Like bacteria,Organisms in domain Archaea are prokaryotic and unicellular. Superficially, they look a lot like bacteria, and many biologists confused them as bacteria until a few decades ago.
Answer: d. Extracellular matrix was discovered more than 20 years ago.
Explanation:
According to biological sciences, the extracellular matrix is a matrix that consists of three dimensional network of extracellular macromolecules such as enzymes, collagen and glycoproteins which provide structural and biological support for surrounding cells as well.
It is found that it is discovered over 20 years ago in the matrix formed in the mouse EHS sarcoma. Therefore, correct answer is (d).
Explanation:
1. Earth is 13 million years older than moon... Moon is 4.53 billion years ago and earth is 4.543 billion years ago.
Much younger than earth.
2.moon has small iron core or lacks sizable iron core.
3 galaxies not considered in solar system bcoz
solar system is the part of milky way galaxy..
4. Hydrogen and helium
5. Venus bcoz it is closest to Sun.
