Emma is creating a model of the sun, Earth, and moon. She uses wire to keep the three objects in orbit around each other. Emma knows that Isaac Newton's law of universal gravitation states that every object in the universe attracts every other object. This attraction keeps Earth in orbit around the sun and the moon in orbit around Earth. Different alignments of the Earth, moon, and sun can cause phenomena to occur on Earth. These phenomena are caused by differences in gravitational pulls. What are these phenomena called?

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Determine if the following statement is true or false. if true, choose true. if false, choose the rewording that is true. according to the law of independent assortment, alleles for each gene are inherited together so that they always stay together. according to the law of independent assortment, offspring express a combination of their parents' traits. according to the law of independent assortment, alleles for a characteristic split during meiosis and combine during fertilization. true according to the law of independent assortment, alleles for each gene are inherited independently so that no two alleles stay together.

Is there any solid scientific evidence that humans have been cloned?