The ‘cultural revolution’ among homo sapiens
select one:
a. meant that by 40,000 years ago, most human populations on earth had begun practicing some form of agriculture
b. was the result of biological changes that have been preserved in the human fossil record
c. might have been due to biological changes that were not preserved in the human fossil record (e. g. changes in brain circuitry)
d. was eclipsed by the even greater ‘cultural renaissance’ that occurred 35,000 years ago among neanderthals

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein