Using what you have learned about the structure and function of the heart, explain why left ventricular hypertrophy can be fatal if left untreated.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

b. climate change will cause an increase in biodiversity of all ecosystems.

hope this