18)Healthy ecosystems cycle matter.

A)Draw a diagram to illustrate or describe in words the cycle(s) of matter within the healthy lake in Model 1.

B) How did the influx of nutrients in the lake disrupt the cycle of matter in the lake and cause eutrophication?

19A)Draw a diagram to illustrate or describe in words the flow of energy through the healthy lake in Model 1.

19B)How did the influx of nutrients in the lake disrupt the flow of energy in the lake and cause eutrophication?

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

Draw the structure of dna nucleotide with adenine as nitrogenous base

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters