Determine the density of a substance with a volume 0f 45mL and a mass of 38.5g

Which type of neuron stimulates muscles to contract?

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked

Which is an inner plant a. earth b. saturn c. jupiter d.neptune