Biology, 22.07.2019 13:00 limelight11
Need quick 1). an ecosystem is most likely to return to its original condition after which of these occurs? a) new predators are introduced to control a pest population. b) a marsh is filled in to make space for a new parking lot. c) flood waters erode the banks of a narrow stream. d) tall prairie grass burns after being struck by lightning. 2). in some national parks, controlled fires are maintained by firefighters. which of these is one of the major reasons for using controlled burns to maintain certain ecosystems? a) to rid the forest floor of accumulated deadwood and brush b) to prevent the spread of pests that cause damage to plants c) to give nonnative plants a chance to colonize the region d) to replace matured plants with saplings of the same species 3). one reason for the change in the galápagos ecosystem has been the introduction of species that were not on the island before, such as donkeys, goats, cats, dogs, and insects. how could the introduction of nonnative species most likely disrupt the balance of life on the islands? a) erosion and degradation of the soil in an ecosystem b) changes in weather conditions which have an impact on fragile life c) increased tourism which threatens the habitats d) greater competition for limited food sources
Answers: 1
Biology, 22.06.2019 03:30, queenkimm26
All vaccination should(n’t) be mandatory! 1.at least 5 sentences explaining 2.why? 3.in the end summarize the sentence
Answers: 3
Biology, 22.06.2019 16:00, maddie7155
You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars
Answers: 1
Biology, 23.06.2019 00:00, tnassan5715
Which major eukaryotic lineages form the bikonta, a monophyletic group characterized by two flagella as a synapomorphy?
Answers: 2
Need quick 1). an ecosystem is most likely to return to its original condition after which of the...
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