Joyce and Tim started piano lessons at the same time. They both practice about 30 minutes a day and enjoy playing the piano. Despite these similarities, Joyce has mastered many more piano skills than Tim has. Which argument is
best supported by these observations?
O All individuals inherit the same potential to play the piano.
O The ability to play the piano is influenced by genetics as well as the environment.
O The amount an individual practices each day entirely determines how well they play piano.
O Most people only need 30 minutes of piano practice each day to master skills.

O The ability to play the piano is influenced by genetics as well as the environment.

Explanation:

Since Joyce and Tim both started lessons at the same time, and practice the same amount these factors do not explain why Joyce is better than Tim. That means that C cannot be correct. Next D and A cannot be correct since they don't state anything that could explain why Joyce is better than Tim, they only say random facts about piano playing that could be true.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.