Your biology teacher has asked you to do the impossible! you must measure the diameter of one algal cell. you are about to turn in a blank lab report when your friend mel comes along and says it is an easy task. first he shows you how to compute the diameter of your field of view. at 40x, your field of view is .50 mm or 500 um. if you look carefully you count 15 algal cells spanning the field of view.

the diameter of one algal cell is approximately

a) 0.03um
b)1.50um
c)3.00um
d)33.3um

The nurse is caring for rescued flood victims in the emergency department. which drugs are used to treat cerebral edema or decrease free water in clients with submersion injuries? select all that apply.

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.