3. What is spontaneous generation? a. the idea that microorganisms have the ability to sterilize lie b. the idea that microorganisms need intense heat to reproduc c. the idea that substances produce germs only when microon d. the idea that substances can produce germs on their own​

The correct answer is -  d. the idea that substances can produce germs on their own​.

Explanation:

Spontaneous generation is an obsolete theory or idea that supports the production of living things and substances from non-living substances and things.

This purpose is that the living creatures could arise from nonliving matter. In microbiology, it is an idea that says that substances can produce germs on their own even if the substances are not similar.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?