Answer:
The completed sentences are given below.
Explanation:
Haemoglobin is a complex protein consists of heme and globin. Heme contains iron as central element.
The prosthetic group of hemoglobin and myoglobin is heme.
The organic ring component of heme is porphyrin.
Under normal conditions, the central atom of heme is Fe²⁺.
In deoxyhemoglobin the central iron atom is displaced 0.4 A out of the plane of the porphyrin ring system.
The central iron atom has 6 bonds: 4 to nitrogen atoms in the porphyrin, one to a histidine residue and one to oxygen
I think it could be long day
A. a piece of DNA that controls a trait
Answer:
gram
Mass is used to measure the weight of an object. For example, you are measuring the mass of your body when you step on to a scale. In the metric system of measurement, the most common units of mass are the gram and kilogram.
Answer:
because of how much water is in the ocean
Explanation:
there is so much water in the ocean, and 100 degres isnt quite boiling point. and the ocean is so big that even if there was one part of the world where it got hot enough boil and possably evaporate, the colder parts of the world still wouldnt.