What is the tube that connects the mouth and nasal cavity to the lungs

How do cells grow and reproduce to maintain homeostasis?

Talking listening and reacting non verbally are all part of communicating

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only