On Earth the Mars rover had a weight of 9800 N. What will be its weight on mars where the acceleration due to gravity is 4 m/s2?

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Do fish feel pain? and if they do what pain

How can scientists use the fossil record to find evidence of relationships between different species?