Answer: I am pretty sure that the answer is A. For me A had "The substrate was used up by the time the temperature reached 60°C".
Explanation: Both A's have similar questions, I'm really sorry if its correct
I believe the answer would be <span> aerobic reactions require oxygen and anaerobic do not. From the word, aerobic itself, it would mean that the process requires the presence of oxygen for it to happen while the opposite is called an anaerobic process.</span>
I believe it’s the cerebellum.
<u>Answer:</u>
Free-living flatworms have developed a nervous system which helps them to sense the food. They have a head at one end of the body and each side of the head has sensory cells. These cells help them to sense chemicals and other movements around them.
While Parasitic flatworms don't have any nervous or digestive system as they live on the food digested by the host. They have special hooks attached to their head which help them to attach a host. They have developed some covering called 'teguments' which protect them from digestive liquids.
False, the chemical make up hardly ever changes, The physical property is the one that changes
