B. Only words ,letters,and fonts
Both were powerful nations and they served as trading hubs in their respective regions during that time.
Answer:
Our body cells require oxygen to release energy.
Explanation:
The oxygen that we take in during respiration is used to break down the food we eat to release energy from it. When we breathe in oxygen, it diffuses into blood from the lung, where it is transported by red blood cells to the entire body to be used to produce energy.
Some species we see in Alaska and nowhere else in the Wolrd are:
Bats
Shrews
Bears
Seals
White Wolfs
Sea lions
Racoons
Walrus.
Bears, Seals, White Wolfs and Sea lions survive the cold weather much more than those other animals.
Answer:
You can say:
Enzymes are soluble.
Enzymes are proteinous in nature.
Enzymes are sensitive to temperature.
Enzymes are sensitive to the activity or alkalinity of their environment.
Enzymes can br inactivated by inhibitors.