The inflammatory response (inflammation) occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause. The damaged cells release chemicals including histamine, bradykinin, and prostaglandins. These chemicals cause blood vessels to leak fluid into the tissues, causing swelling.
B. pain, swelling, and a local rise in temperature.
Answer:
False
Explanation:
Stress exhibit both physiological and psychological effects.
Psychological stress is an inclination of pressure and strain. Stress is a sort of mental torment. People experience pressure, or see things as compromising, when they don't accept that their assets for adapting to deterrents are sufficient for what the conditions request.
Physiological stress is a creature's reaction to a stressor, for example, an ecological condition. Through these systems, stress can change memory capacities, compensate, safe capacity, digestion and helplessness to infections.
Some of the effects of stress include High blood pressure, depression, cardiovascular diseases, anxiety, etc.
Whether suicide has been considered recently. The client is
depressed; it is important to know whether the client is considering suicide so
the nurse can provide a safe environment and related therapeutic care. Concern
for the client's safety takes priority at this time over the client's feelings,
the underlying cause of the behavior, or the dynamics of the marital
relationship.
Explanation:
-increases genetic variation
-increases the fitness of a species
Further Explanation:
All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells during cell division, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained.
Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell. During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:
- somatic: these only occur within certain cells, and arise from environmental factors such as UV light
- hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.
Like other events, such as crossing over during mitosis and meiosis, mutations lead to increases in genetic variation. This variation refers to the genetic characteristics present within a species. Mutations are maintained within cells, as they form new traits called alleles, which may confer adaptations that increase the fitness of a species, along with ensuring survival by conferring a protective advantage
.
e.g. sickle cell anemia, a disease caused by a mutation, confers protection against the disease malaria.
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