Match the scientist with the correct statement. 1.astronomer
2.geologist
3.oceanographer
4.meteorologist

A. "A dinosaur mummy was found with much of its tissues and bones still encased!"
B. "Black holes are a small sphere of densely packed matter."
C. "Sea otters are on the endangered species list due to over-hunting for their beautiful fur."
D. "Many schools in Vermont are closed due to heavy snow, sleet, and rain."

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm