Answer:
You could use the fossil record to help explain the evolution of a species by watching how it aged, what it ate, how it breed and where it lived along with a million of other things. It could have lived in the 20 below freezing and then you find that same fossil in the warmest place in the world it shows that the species either adapted or possibly had an offspring that could handle the high temperatures.
Explanation:
The answer is 1.2 m³
1 L = 1 dm³
1,200 L = 1,200 dm³
1 dm³ = 0.001 m³
1,200 dm³ = 1,200 * 0.001 m³ = 1.2 m³
The <span>eukaryotic cells do not contain any organelles such a nucleus in particular. The difference in their structures for prokaryotes and eukaryotes will also include the presence of chloroplasts and mitochondria. Also, structures such as cell wall and chromosomal DNA structures are also some of the difference in the two types of cells. The answer to the second question is C.
</span><span>
</span>
The best answer is B - Proteins.
Proteins make up enzymes, or to put it another way enzymes are made up of protein. It is enzymes that speed up the chemical reactions. Enzymes are organic catalysts, substances that speed up a (biochemical) reaction but do not take part in the reaction and remain unchanged at the end of the reaction.
In man, there are many enzymes. The majority of these are found in the digestive system where they greatly aid the process of food breakdown from complex molecules to simple molecules. Examples include salivary amylase found in saliva, which begins the gradual breaking down of starch into glucose right from the moment food is placed in the mouth and mixed with saliva. Pepsin in the stomach breaks down protein.