In humans, having wet earwax is a dominant trait. having dry earwax is recessive. a women has two recessive alleles. what is his phenotype ?

This is a type pf behavior that animals are born with and them to survive

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems