Saliva helps to break down food chemically by using enzymes. Which statement best describes this process?

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

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary