Algae at the beginning of a food chain would be considered?

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.