Answer for brainliest A group of three nitrogen bases in an rna molecule codes for one.

1. Specific protein

2. Ribosome

3. Gene

4. Amino acid

The correct answer is - 4. Amino acid

Explanation:

A group of three nitrogen bases in an RNA molecule codes known as triplet code that are copied by the DNA sequence by the process of the transcription and this RNA molecule is known as mRNA molecule. Each mRNA molecule has complementary sequences of nitrogenous bases of DNA sequence.

These nitrogenous base present in the mRNA molecule makes a set of three bases to code for a particular amino acid, for instance, AUG codes for methionine amino acid.

The pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants.