Which is not used to classify organisms?

a. ancestry

b. habitat

c. age of the organism

d. dichotomous key

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1

Why are some people more concerned about shark survival than about shark attacks?