It is A. Clay ....sand is not it
Answer:
The correct option is 3. "At pH 6.5 the enyzme is 50% active"
Explanation:
For the titratable group to be protonated and cause the enzyme to be in the active state, it needs to have gained a hydrogen cation (H+). In order for that to happen, there must be enough hydrogen cations in the environment of the enzyme, and hence, an acidic pH is required in this case.
Phosphorus. It's not abundant, but it's important. There are traces of it in our bones and in the "phospho-lipid bilayer" of the membrane.
Hope that helps!
Answer: D. Fossil Record
Hope
this is correct!!
Answer:
Each bundle of muscle fiber is called a fasciculus (singular fascicle) and is surrounded by a layer of connective tissue called the perimysium
Explanation:
