Answer:
d. carries nerve impulses toward another neuron, a muscle fiber, or a gland cell
Explanation:
An axon is a fiber of the nerves that transmits nerve impulses( electrical signals) away from a cell body and towards another neuron, muscle fiber or gland cell.
We have two types of axons in the body.
a. Myelinated axons
b. Unmyelinated axons.
The difference between Myelinated axons and Unmyelinated axons is that the Myelinated axons has an external covering or insulation which is called the myelin sheath.
The myelinated axons are very numerous and mush faster than the unmyelinated axon.
Answer:
Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species
Explanation:
Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.
Ans.
The blood pressure is defined as the pressure applied by blood cells to the wall of blood capillaries. The normal blood pressure ranges between 120/80 to 140/90, in which upper range shows systolic pressure and lower range shows diastolic pressure.
According to given data, the blood pressure of adult is 200/120, which shows an increase in blood pressure. This condition is known as hypertension. Thus, the nurse should perform next nursing intervention by keeping in mind that the patient is having hypertension and there is a need to control his blood pressure as hypertension can lead to various adverse effects on organs and systems of the body.
The Heart is located in the Thoracic Cavity medial to the lungs and posterior to the sternum.
