Just to add on over time they have develiped a tuff outer layer to stop weather and insects from harming them.
Answer:
urinary bladder does not help in reproduction
It’s all atoms have the same number of protons. I looked all of them up and that one was true soo I think that’s right
Answer:
Nitrogen
Explanation:
All living organisms need nitrogen in order to build proteins and build DNA.
Some animals (most) get nitrogen by eating plants I believe.
Answer:
Glucose in the blood
Explanation:
When we eat and the level of glucose in the blood rises, it stimulates the release of insulin into the blood stream. It makes sense, because insulin is necessary for glucose to enter the cell across the membrane and be used as a source of energy.The problem arises when we eat too many carbohydrates for too long and the glucose level in the blood is constantly too high. After a number of years this causes insulin resistance. In other words, each time an ever greater concentration of insulin is needed to perform its function and eventually this leads to diabetes, when the pancreas just cannot produce any more insulin.
