Environments are covered with manmade structures like roads, buildings, and sewers. green spaces such as parks, backyards, and undeveloped lots are scattered in among the developed areas instead of all connected together. plants and animals have to deal with exposure to toxins from vehicles and loss of habitat and food sources. these are all ways that a. humans have intervened to both manage and manipulate the environment to ensure species survival b. nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem c. cities have been developed to keep wildlife out of public areas d. humans have impacted the environment and caused wildlife species to become domesticated

What was photo 51 with rosalind franklin?

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.

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?