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The elements carbon, oxygen, hydrogen and nitrogen combined make up
about 96% of our bodies (carbon is about 18%). Carbon is necessary for life
because it is a(n)
uncommon
element in all
living things.
element found
only in the
atmosphere
onder
is found mostly in
dead things

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport