4.1. in seminar 6 we counted the number of stems (tree trunks) as a measure of species
abundance. instead of counting the number of stems, matlack (1993) used percent cover
when measuring shrub abundance. for woody plants, percent cover is an estimate of how
much ground surface area that the foliage of each species covers, as a proportion of the
total area being sampled. why would a researcher choose one method over the other?
what are the advantages of each method of determining abundance? (2 marks)

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shoes a decrease in percipitation, and blue shows an increase. the maps differ based on the predictive levels of green house emissions. the maps shows that northern area should get a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.southern areas show a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.to use these maps to prepare for natural disasters in the great plains, scientist need to ask? a. how many tons of emissions were used at the basis of the map.b. which types of fossil fuels are used in the great plains c. if you think the above is wrong it's probly c the question is cut off

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d