Which of these labels for fossils in a museum display contains an error?

a. dinosaur (middle mesozoic)
b. early mammal (late triassic)
c. early human (early cenozoic)
d. early marine invertebrate (early paleozoic)

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.