I need help on number 2

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

In which of the following relationships is one organism always benefited while the other organism is always harmed

Which is the best example of plant tissue? the answer is d (just took the test)