A mutation occurring in a human can be passed from parent to offspring when it occurs in a(1) lung cell, due to exposure to a toxic gas(2) gamete formed in the ovary(3) body cell under going mitosis(4) heart cell with chromosome damage PL ANSWER EXPERT OR ANYONE WHO KNOW LOTS OF POINTS AND BRAIN

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).

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water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.