What is true of all 4 groups of macromolecules? a. All macromolecules are joined by ionic bonds
b. All macromolecules are made of monomers and bond together to form polymers
c. All macromolecules are both hydrophobic and hydrophilic
d. All macromolecules contain genetic information

What was carolus linnaeus' classification system of organisms based on? a.physical characteristics of organisms b.food habits of organisms c.habitat of organisms d.size of organisms

Are characterized by dry conditions, limited vegetation and wide temperature range. a.) tropical rain forests b.) deserts c.) grasslands d.) none of the above

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.