Was it beneficial or harmful for the Chthamalus barnacle to add the Balanus barnacle? Explain.

Classify the structures as homologous or analogous, depending on their structure and function.

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.