4. which of the following is the best example of
biodiversity?
a in sri lanka, over 30 species of tree frog are in
danger of becoming extinct.
b atlantic salmon may swim 500 miles against a
river current just to spawn.
c sequoia national park has more than 1200
plant species.
d birds have feathers with different colors.

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.

How does the human body lever work?

What is the difference between topsoil and clay?