Which of the following is NOT a true statement about enzymes involved in the digestive system? A. Enzymes are necessary for digestion. B. Enzymes have an optimal range of operant conditions (eg, temperature and pH).
C. Enzymes react with specific substrates to help speed up the process of breaking them down.
D. Enzymes slow down digestion so that nutrients can be absorbed more thoroughly.​

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

Are salt and soap nutrients or toxins for yeast? explain.

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?