What would we need to start a colony on Mars? My ideas are soil, trees, and plants, water, those plant heat lamps, airtight domes, solar panels, and rocket fuel.
Any more stuff we need to pack???
(I mean global warming and all)

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

Which of the following is not associated with invasive species?

Who discovered tuberculosis bacteria?