Afossil species is found in the same rock layer with fossil 3 and fossil 4. when could these species have existed? a) 500-245 mya b) 500-500 mya c) 540-245 mya d) 540-505 mya

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms