A snail is shown in the diagram.

What is one function of the structure labeled Y?

digest prey
pump blood into the heart
remove carbon dioxide from blood
capture prey

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

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.

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor