List the three main subdivisions of the nervous system.

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

Anton created a chart listing different types of materials. which best complete the chart?

What type of graph presents information about how often certain or traits occur?