The amount of carbon dioxide absorbed by plants has doubled over the last 50 years. While this increase could have been caused by a growth in the number of Earth's plants, what other explanation does the article offer?

15 points come and ! which characteristic describes all bacteria? a rod-shaped b microscopic c multicellular d autotrophic

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time