<span>The cilia and flagella of eukaryotic cells are made up of specifically designed microtubules. Microtubules are part of the cytoskeleton and are nucleated. They play an vital role in several cellular processes and also play a part in maintaining a cell's structure.</span>
The correct option is C.
if two organisms are in the same class then they will be in the same phylum. The biological classification hierarchy is arranged in such a way that, two organisms who belong to a lower division on the hierarchy will automatically be in the same group in the higher division.
The arrangement from the smallest to largest hierarchy is this: specie, genus, family, order, class, phylum and kingdom.
Answer: Option A
Explanation: The cardiovascular system is the system of human body which circulates blood through the complete body to supply oxygen to the whole body.
It also carries nutrients along with the blood and carries waste materials from the body to the heart.
Heart rate can be defined as the number of times the heart beats per minute and it is related to the load the heart has.
The sympathetic nervous system of the body releases hormone like epinephrine, nor epinephrine which increases the heart rate. There are many other factors that increase the heart rate such as exercise, stress et cetera.
Because the gram stain differentiates two types of bacteria based on the composition of their cell walls.
