Sarah and her parents planted lots of grass seed in the backyard. a few months later, sarah noticed that there were a lot more living in the grass growing in the backyard. (a) birds (b) insects (c) worms

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down

The united states uses which source of energy to produce almost 40 percent of its electricity

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes