Recall that photosynthesis consists of two sets of chemical reactions. which of these describes the energy conversions that occur during the light-independent reactions?
a. light energy à chemical energy
b. chemical energy à chemical energy
c. chemical energy à mechanical energy
d. mechanical energy à mechanical energy

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

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.

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.