How can the two chromosomes that make up a homologous pair differ? They can contain different alleles for the same trait.
They can contain genes that code for different traits.
They can contain the same genes in different orders.
They can contain a different number of genes.

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in