An open system starts with 52 J of mechanical energy. The energy changes to 45 J of mechanical energy and 2 J of thermal energy. What is the final total energy of the system? 50J
47J
9J
54J

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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carbon atoms, hydrogen, oxygen, and nitrogen.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: