Which era follows the end of the cretaceous period?

1.precambrian
2.mesozoic
3.paleozoic
4.cenozoic

If assuming tasting ptc as a simple gene trait,what other genotype would you select to put in this missing genotype box that could result in this phenotype

Aperson is outside exercising. body temperature begins to rise, and the person starts to sweat. their body temperature then returns to normal, and the body stops sweating. a positive b negative c allosteric d homeopathic

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