A park with a small lake is home to a population of ducks. The building of a housing complex
eliminates a nearby pond. Soon other ducks and waterbirds like geese and egrets come to live at
this small lake."

15. State one specific way the new populations of birds may affect the original population of
ducks.

16. State one specific way the new populations of birds may change the abiotic factors of the
environment in and around the lake.

17. Predict one way the new populations of birds may affect the populations of plants that
live in and around the lake.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.