Which of the following might a scientist cite as a reason for the Cambrian explosion? A. Lower oxygen levels in the oceans.
B. Heightened diversity of fossils.
C. Heightened availability of minerals in the oceans.
D. Lowered predation leading to better survival of species.

Name the part of the the brain labeled "e".

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

Aperson is outside exercising. body temperature begins to rise, and the person starts to sweat. their body temperature then returns to normal, and the body stops sweating. a positive b negative c allosteric d homeopathic