Biology, 25.06.2019 10:00 tiiiiffany
Chapter 27: bacteria and archaea 1. identify the differences between bacteria, archaea, and eukarya, and the evolutionary relationships between the 3 groups 2. explain the ecological roles of prokaryotes: decomposers, producers, nitrogen fixers, pathogens, and various symbioses and recognize that cyanobacteria are the only group that has evolved the ability to carry out oxygen-producing photosynthesis 3. discuss the mechanisms of horizontal gene transfer, the widespread nature of this process in prokaryotes, and its importance in the evolution eukaryotic groups 4. describe major shapes, cell wall types, modes of nutrition used by bacteria and different responses to oxygen 5. define the following terms: halophile, extremophile, thermophile, methanogen, decomposer, nitrogen fixation, aerobic, anaerobic, photoautotroph, photoheterotroph, chemoautotroph, chemoheterotroph, transformation, transduction, conjugation, mutualism, commensalism, parasitism
Answers: 2
Biology, 22.06.2019 11:30
Can someone pretty me with this ? itβs urgent.compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( β i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.
Answers: 3
Biology, 22.06.2019 13:00
In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.
Answers: 3
Biology, 22.06.2019 13:30
Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.
Answers: 2
Biology, 22.06.2019 18:00
How do specific cell structures and organelles contribute to maintaining homeostasis in the cell?
Answers: 1
Chapter 27: bacteria and archaea 1. identify the differences between bacteria, archaea, and eukarya...
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