Adenine and guanine
Thymine and cytosine
They were adapted to an environment and once it is taken away the plants will slowly start to die. I'm not 100% :)
The answer may be, Replication, but I am unsure.
Answer:
Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II. In meiosis II, these chromosomes are further separated into sister chromatids. Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.
Explanation:
Brainliest please?