Biology, 02.12.2019 19:31 christian5668
Land plants evolved long before any animals appeared on earth. when they came onto land, they needed ways to keep from losing water, to reach the sun, and to produce oxygen. they started to convert the atmosphere from carbon dioxide to oxygen. which of these is believed to be the common ancestor of land plants?
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Biology, 22.06.2019 08:30
Which of the follow describes a disadvantage secondary sources have compared to primary sources?
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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 21:30
What is the name of the idea that energy cannot be created nor destroyed
Answers: 1
Land plants evolved long before any animals appeared on earth. when they came onto land, they needed...
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