Why do we need brazillion rainforeset pleease help

The Amazon rainforest plays an important part in regulating the world's oxygen and carbon cycles. It produces roughly six percent of the world's oxygen and has long been thought to act as a carbon sink, meaning it readily absorbs large amounts of carbon dioxide from the atmosphere.

"do a testcross with a homozygous recessive plant."

feral cats are estimated to eat tens of millions of native animals each night in australia