I think it’s D vacuoles, I’m not certain but it don’t hurt to try if it’s not that try A
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.
Increased in pitch (frequency). It's the doppler effect.
The magma in the mantle rise through the crust above it because there is too much pressure in the mantle which causes the magma to rise. <span />
Answer:
A good experiment must include all possible causal factors in one experimental group.
Explanation:
i cant tell if thats a choice but if not then none of the above i guess
