The diagram above shows a pyramid of numbers for a jack pine forest community. the number of producers is much lower than those of the primary consumers. how can this be?

What are the four basic classes of organic molecules how do they differ structurally and functionally

What is the relation ship between structure and function in an organism

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