Historically, african elephants have had large ivory tusks, for many years, poachers have been killing elephants that have large risks so they could sell ivory which is very valuable, now for many african elephants have small tusks, or do not have any at all. which of the ones are true?

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Which direction does the energy flow in this energy pyramid ?

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.)