Multiple Choice
An ecologist samples trees in 50 plots in a forest to determine the number of species in the forest.When a species accumulation curve is used to plot the cumulative number of tree species (y axis) against the number of samples taken (x axis) ,the optimal sample size needed to determine species richness is represented by the point at which the curve
A) is steepest.
B) is highest,after which it dips downward.
C) flattens.
D) is lowest.
Correct Answer:
Verified
Correct Answer:
Verified
Q3: As latitude increases,the number of marine species
Q7: Which of the following shows the correct
Q16: Over the past 100 million years,species richness
Q20: Species richness of terrestrial plants and animals
Q23: Primary productivity in the oceans is lower
Q24: As latitude increases,marine productivity _.
Q26: In terrestrial habitats,species richness is negatively correlated
Q35: A mass extinction of large mammals occurred
Q48: Seasonal variation in surface temperatures of the
Q58: The end of the Pleistocene epoch was