Why would you use a dichotomous key for a particular genus to find the specific epithet of a species

If an organ has six haploid chromosomes, how many chromosomes are present. 6 12

How do the sperm cells get from the stigma to the ovules?

Explain the physiological changes that occur when the hypothalamus stimulates the sympathetic nervous system. you can make a flowchart or a simple step process. be sure to include all chemicals/hormones secreted, glands involved and the functions of each chemical/hormone.