A-When the immune system is functioning properly, it can fight off disease-causing organisms including bacteria, viruses, and parasites as well as cancer cells while safeguarding healthy tissue.
B. a parent cell divides twice to create four haploid gametes
A.when there is low gene flow
Answer:
plants, algae and certain bacteria .
Explanation:
<h3><u>Answer;</u></h3>
When particles were pulled together so tightly they combined.
<h3><u>Explanation</u>;</h3>
- The solar nebular hypothesis describes the formation of our solar system from a nebula cloud made from a collection of dust and gas.
- It is believed that the sun, planets, moons, and asteroids were formed around the same time around 4.5 billion years ago from a nebula.
- According to this theory, the Sun and all the planets of our Solar System began as a giant cloud of molecular gas and dust.
