Accessories that are being pulled by an animals or mounted machineries which are usually used in the preparation of large tract of land.

What is the most important inorganic material for livings things? ! due tomorrow!

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.