The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain. true or false

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.