Question

Abiogenesis theory of origin supports
(a)Spontaneous generation
(b)Origin of life from blue-green algae
(c)Origin of life is due to pre-existing organisms
(d)Organic evolution is due to chemical reactions

Answer 1

The theory of abiogenesis was supported by early Greek philosophers and ancient Egyptians who believed that life originated from abiotic components. They believed that the mud of the Nile river gave rise to frogs and snakes. This theory stated that non-living things gave rise to living organisms.

Complete answer:
In evolutionary biology, the theory of abiogenesis or also called the origin of life is a natural process that led to the evolution of life forms from non-living matter. It was a theory that was supported by the early Greek philosophers. In ancient Egypt, the people believed that the mud of the river Nile gave rise to the frogs, snakes, and even crocodiles when exposed to the warmth of the sun. It was believed by Van Helmont that human sweat and wheat grains could give rise to some organisms.
This theory is also known as the theory of spontaneous generation. Although abiogenesis is uncontroversial among scientists, there are a lot of mechanisms that support this theory.
So, the correct answer is, “Spontaneous generation.”

Note: -Another theory of abiogenesis based on experiments by Miller-Urey experiment that demonstrated the rise of the organic components such as amino acids and proteins from abiotic molecules and inorganic compounds.
-They showed that certain chemical systems lead to the development of these molecules under certain conditions.
-The conditions that were used in the experiments were the same as supposed conditions present in early Earth such as lightning, radiation, and primordial soup.