Tagonite is a low-grade iron ore that is found around lake Superior the iron bearing rock is found interface with quartz shirt and other minerals the iron is separated out of the tagonite using magnets so that it can be processed to for use in the production of steel and nearby States what statement does not represent a concern by the department of natural resources about the use of tagonite as a source of iron

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.