which of the following describes a relationship of mutualism?
Biology, 28.01.2020 07:31 jxcxhxwxll
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which of the following describes a relationship of mutualism?
oxpecker birds eat parasitic ticks off the backs of zebras
a tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat
a polar bear catches a seal for dinner
birds feed off the insects that are stirred up from the grasses as cattle move through
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Biology, 22.06.2019 10:30
Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.
Answers: 3
Biology, 22.06.2019 17:30
Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)
Answers: 3
Biology, 22.06.2019 18:10
The basic kind of life cycle found in the simplest animals is: haplontic or diplontic
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which of the following describes a relationship of mutualism?
which of the following describes a relationship of mutualism?
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