The first organisms to arrive during primary succession are called what? Pioneer species
Intermediate species
Decomposers
Tertiary species

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

Where can you find prokaryotic and eukaryotic cells?

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative