All of the following are considered toxic metal pollutants except

What are the types of genetic recombination

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

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms