Because tropical deserts are very dry,
a. there are no plants in the desert
b. the soil is poor in organic matter
c. temperatures are about the same day and night
d. animals cannot live there

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Combine like terms. do not forget to use the distributive property to simplify the first term. 2(3y + 5k) - 2k

Political boundaries are determined by the political party in control at the time. true or false