List a hypothesis for the origin of animals.?

Question

List a hypothesis for the origin of animals.?

Answer 1

animals evolved from non-animal ancestors.

(that's a hypothesis, evolution is the overarching theory and fact that proves it. If you think theory and fact are opposites, you are banished to the land of science no-nothings. )

Answer 2

Here's one:

Amino acids encased in meteorites landed on earth. When exposed to the chemical soup on early earth, they developed into proteins and then DNA.  Etc...

Answer 3

a chemical reaction when water was made, making the first photo synthesis reaction turning a compound into the first algae

Answer 4

Duh, the spaghetti monster, creator of the universe is the origin of all forms of life.  Sheesh.

Answer 5

Here's a timeline for you...

The universe=20 billion years old

The earth=4.6 billion years old

The first plant life formed around geothermal ducts at the bottom of the ocean=2.5 billion years old

The first mutaton of these plants into half plant/half animal=2 billion years old

The first animal, which is the common ancestor of all animals today, is the sponge=1 billion years old...

The rest is history