The RNA world hypothesis states that the earlier life-forms had relied only on RNA (Ribonucleic Acid) for the purpose of catalyzing the chemical reactions, and storing the genetic information. This hypothesis was proposed by Leslie Orgel, Carl Woese, and Francis Crick.
This hypothesis states that long before the living forms evolved to use DNA as the genetic storage material, the RNA molecules served the purpose of both storing the genetic information and carrying out catalysis, but because of its instability, DNA evolved.
Hence, the answer is RNA world hypothesis.
Answer:
Living things are highly organized and structured, following a hierarchy that can be examined on a scale from small to large. The atom is the smallest and most fundamental unit of matter. ... A molecule is a chemical structure consisting of at least two atoms held together by one or more chemical bonds.
Explanation:
Answer:
Egg
Explanation:
After the adult phase the cycle should start over again
Answer:
Energy processing
Explanation:
In the food web, the grass is the producer of energy gazelle is the consumer, the cheetah is the secondary consumer.
What is a food web?
In the ecological community, the food web is a graphical representation of the flow of energy between producers of energy and consumers.
it is basically an interconnected food chain.
All LIFE as we know it on Earth is dependent on THE SUN.
