. Photosynthesis has a huge impact on society and history. Which of the following are political impacts of photosynthesis? Select all that apply.

1 oxygen production
2 global warming
3 slash-and-burn agriculture
4 climate change
5 use of fossil fuels

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

What's the waste product of electrons and pyruvate combining in fermentation?  

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.