Hurry! Worth 25 points, will get brianlest if correct! Which processes result in genetic differences between parents and offspring and among offspring? Check all that apply

the crossing over of paired chromosomes

the independent assortment of genes

the replication of DNA before a cell divides

the separation of chromosomes to opposite sides of the cell

the condensing of DNA into a chromosome

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Explain why ecosystem diversity results in species diversity in a healthy biosphere

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?