Nitrogen is cycled out of the atmosphere due to

A. winds and currents.

B. bacteria and plants.

C. animals performing respiration.

D. plants performing photosynthesis.

The destruction of an organism's habitat either through human impact or natural causes, such as a fire or flood, increases the likelihood that an organism could become extinct.

The progressive age-related loss of muscle tissue is called

An ecological hot spot is an area where A) many habitats and species are at high risk of extinction. B) species diversity is too high. C) hunting is encouraged. D) habitats and species show a high amount of biodiversity.

Vegan vegetarians must rely on complimenting proteins in order to get all the essential amino acids. choose the best combination of foods that would provide the essential amino acids of a complete protein

Contrast the three types of dispersal.

What is princess leias Death Star cell number in star wars.

Do you think it is possible to have the benefits of the agricultural & industrial revolution without the environmental costs?

Fungi fall under the Plantae kingdom. True False

Which of the following is a compound? A) Sn B) Mg C) H D) CO study island

3) Amphibians hatch out of their eggs with: A lungs and develop gills later. B lungs and keep them their whole lives. C gills and develop lungs later. D All of the above.