when you eat a sandwich and it passes through digestion and brain signals you full is this a positive or negative feedback moment and justify my answer?

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 part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

Which characteristics are typical of a human population in the postindustrial stage?