The graph shows the relationship between the rate of enzyme action and pH for three enzymes: pepsin, urease and trypsin. What conclusion can be drawn concerning the enzymes whose activity is represented in the graph?

Beth’s hygrometer is reading a temperature of 30 c and a relative humidity of 65%. the humidity in the air is?

The negative impacts of nonnative species generally outweigh the positive impacts

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.