1.) the headwaters of a stream are always located at a/an elevation than the mouth of the stream.
2.) a stream’s velocity is at the bottom and edges.
3.) a stream’s invisible load represents (on average) about 15% of the mass of material transported.
4.) a stream with many rapids and waterfalls is likely a/an stream.
5.) in a meander, water flowing around the outside of a curve flows than water flowing around the inside of the curve.
6.) an oxbow lake can form near a/an stream.
7.) a/an is likely to form where a stream deposits sediment as it enters another body of water.

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Describe the two types of vascular tissue

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.)