450/340=1.3
1.3 sec is the answer because you take the distance and divid by the rate
<span>The answer is the first option. Enzyme and substrate bind using a lock-and-key mechanism. Enzymes act on a specific substrate and a substrate needs a specific enzyme, this is what is called a lock-and-key mechanism. Enzymes and substtates are like a key and a lock, one is for each other.</span>
Answer:
B
Explanation:
It is a gas and therefore according to particle model of matter it has large spaces between them and does not have a definite shape
Answer:
it is s because enegy allows us to walk
Matter is everything and everything is made of matter, everything physical at least
