So Iron can be found in many many different things.
•The core of the earth is majorly composed of Iron, Sulfur, and Nickel.
•It can be found In minerals such as Magnetite and Taconite.
•It can be found In meat, poultry, and fish.
“In the end a thermic animals water acts as a good insulator due to specific heat capacity. The specific heat capacity of a substance is the heat capacity of a sample of the substance, divided by the mass of the sample.”
Answer:
2.5 billion years ago.
Explanation:
Evolutionary tree is constructed to understand the phylogeny and evolution relationship of the organism. The evolutionary tree is constructed by looking at the molecular and physiology of the different organisms.
The eukaryotes are more closely related to the archaea. Depending on the biochamical and molecular evidence is has been found that they share the common ancestor almost 2.5 billion years ago. This can also be deduced by the fossil evidence as well.
Thus, the answer is 2.5 billion years ago.
Acids and bases are important in living things because most enzymes can do their job only at a certain level of acidity. Cells secrete acids and bases to maintain the proper pH for enzymes to work. For example, every time you digest food, acids and bases are at work in your digestive system.