The majority of systemic reaction to local or regional analgesic are due to intravascular injection. نوع السؤال: خيار واحد True False

Q: What is the functional cell of the nervous system?

A: The nervous system in association with the endocrine system , serves as the primary control centre…

Q: What is the function of neuroglial cells in the nervous system?

A:

Q: Sequencing genomes of the Lassa virus to test hypotheses about its spread is an example of the…

A: ANSWER;- Evolutionary medicine. Explain;- Recombination with the host or other organism happens when…

Q: 1. Sephadex G100 is (a) a carbohydrate polymer, (b) used to isolate lectins, (c) is the stationary…

A: Sephadex is a type of dextran used in :  Protein chromatography  Gel filtration  Affinity…

Q: We talked about what makes an ideal trait for phylogenetic inference. Please match each of the…

A: The method of reconstructing the evolutionary history of related species by grouping them into ever…

Q: Which of the following best refers to the “the biologic mechanism is known?” A. Consistency B.…

A: This mechanism is related to epidemiology  Epidemiology is related to public health and forms a…

Q: How might brain shape reveal clues about hominin history? The globe-shaped brain of modern humans…

A: Modern human beings are the result of the evolutionary process. Over the years, scientific research…

Q: At initial contact, the ankle should be Dorsiflexed Select one: True False

A: Bones make form the skeleton. Different types of bones are connected to one another in a certain…

Q: Why do we classify viruses as obligatory intracellular parasites?

A: A virus is a submicroscopic infectious agent that replicates only within an organism's live cells.…

Q: Use this phylogenetic tree for a fictional group of insect species to answer the question. A.…

A: Types of Phylogenetic Trees: Rooted Unrooted Bifurcating Multifurcating.

Q: what is chromosome, mitosis and meiosis

A: Chromosome - Chromosome is a highly condensed type of DNA found in the cell nucleus. A chromosome is…

Q: How many accessory and guard cells are found in one stomatal complex of the specimen?

A: Stomata Stomata are tiny pores that are present on the lower side of the leaves of the plants, these…

Q: An inherited characteristic that increases an organism's ability to survive and reproduce in its…

A: Adaptation:  Biological fitness influences the rate of evolution as measured by changes in gene…

Q: 3. What happens when people get vaccinated by the following vaccines? How does a person get…

A: Vaccinations and Immunizations started in the 18th century, with the Smallpox Vaccination, created…

Q: The pancreas helps to maintain homeostastis in the body. If the pancreas were to suddenly stop…

A: Pancreas is the organ that present below the stomach in the abdominal cavity. It has both exocrine…

Q: Which of the following is the odd one out?

A: Morphological features depict the physical characteristics of any given species or organism(it can…

Q: how has human evolution changed or not chnged your concept of what it means to be human? (restrict…

A: Evolution is a process of change to adapt accordingly to the environment for better survival and…

Q: structure and properties of the amino acid L-histidine

A: Amino acids are the molecules that join together by a peptide bond to form proteins. There are…

Q: For microprojectile bombardment, the particles used are typically? a. Nickel b. Tungsten O c.…

A: Ttransformation is a biotechnological process where a foreign DNA molecule is inserted into the host…

Q: How important is RNA extraction in the recent pandemic

A: NOTE: Citing external references are not allowed as per our company's honor code. RNA Ribonucleic…

Q: 18) Which of the following statements concerning types of muscle fibre are correct? 1. Three types…

A: Introduction Muscle Fibres:- A muscle fiber is a single cell made of a bundle of myofibrils,…

Q: Plate count method assumes that a colony arise from one cell. Some species grow in clusters and this…

A: Plate count method assumes that a colony arise from one cell. Explanation: Plate counting is…

Q: Escherichia coli's chromosome has a replication origin called OriC. Draw a schematic diagram to show…

A:

Q: PROTISTS Supergroup Excavata Subgroup Fornicata Distinguishing properties Form cysts Important…

A: Protists are small eukaryotic organisms that come in a variety of shapes and sizes. Protists can be…

Q: Explain the positive and negative results of ELISA.

A: Introduction ELISA is an acronym for enzyme-linked immunoassay. Antibodies in the blood are detected…

Q: The man's genetic defect appears to be due to the mutation of the promoter region of a protein X.…

A: Sanger method is also known as enzymatic chsin termination method and was developed by Frederick…

Q: contrasting external characteristics between Phylum Nematoda and Phylum Mollusca.

A: Whenever we observe and compare two organisms we first observe the external feature and these are…

Q: 1. What shapes your understanding of what is male and female?

A: The human body is a very complex creature made up of several systems. Each system in the human body…

Q: You made your material in the lab and wish to test for biocompatibility in vitro with a direct…

A: Biocompatibility is the process in which the compatability of the skin can be mediated by using…

Q: Explain why p53 is mutated in the vast majority of human cancers.

A: Any isoform of a protein encoded by homologous genes in multiple animals, such as TP53 and Trp53, is…

Q: A plant evolves a high level of poison that enables it to defend itself against insects. Soon an…

A: Evolutionary developmental biology is considered a new norm in evolutionary biology. It arose from…

Q: Consider the example of the fusion of chromosome 21 and 14. By itself, this fusion does not cause…

A: In humans, when the long arm of chromosome 21 is joined to the long arm of chromosomes 14 or 15, the…

Q: Please place the following Chordate adaptations in order of most ancient (1) to most recent (4). 1…

A: Evolutionary developmental biology, is considered a new norm in evolutionary biology. It arose from…

Q: Outline the mechanistic steps that can unwind the E.coli's DNA to initiate the DNA replication.

A: DNA replication has been well studied in bacteria primarily because of the small size of the genome…

Q: The behavior an animal exhibits that relates to their resource exploitation within their habitat is…

A: Ecology is defined as the study of the environment, and it helps us understand how species coexist…

Q: List the three major types of RNA and their function?

A: RNA is a long, unbranched, single stranded polymer of ribonucleotides. Each nucleotide unit is…

Q: Activity 10 Pathway of a Glucose Molecule as it Travels Through the Human Body STEP COLOUR ORDER…

A: Introduction Passive transport involves the movement of substances( in this case a glucose molecule)…

Q: Which of the following is not a requirement for a PCR mix? O a. Taq polymerase O b. Excess…

A: Polymerase chain reaction Polymerase chain reaction or PCR , as it is commonly known who invented by…

Q: hytochrome, plays an important role in flowering in many plants.  It can also be used to determine…

A: Phytochrome  Phytochrome is a type of photoreceptor which is present in the plants, bacteria, and…

Q: A pregnant staff is concerned about harmful radiation to her fetus.  She can work on these areas of…

A: Non-ionizing radiological procedures These are the imaging procedures which does not use ionising…

Q: Which agency in the USA is responsible for the regulation of pharmaceuticals and food stuffs? O a.…

A: C. FDA

Q: Identify between vehicles and fomites and provide specific examples of each. What role does each…

A: Infectious agents such as germs and pathogens are likely to spread from one person to others. Many…

Q: Given that mammalian cells have much larger chromosomes compared to E. coli cells, how is…

A: The cell division process causes significant alterations in both plant and animal cells. For…

Q: 25) In muscle contraction cycles, bridge during which myosin; actin; ATP; energy actin; myosin; ATP;…

A: The skeleton muscle is the classic example of interaction between actin filament and myosin…

Q: 19) The major reason for the decrease of resting heart rate for people who have participated aerobic…

A: When a person engages in physical activity, the heart beats faster during the activity and for a…

Q: Franco and Nobel (1989) discovered that there are downsides to having a nurse plant for young cacti.…

A: Introduction :- Nurse plants are trees that protect smaller plants from predators. Extreme high…

Q: Describe the reproductive cycle of a retrovirus, such as human immunodeficiency virus (HIV).

A: Introduction  Viral infections are very harmful to mankind. In the post century where we faced the…

Q: What is the role of the substrate? Is it really necessary to add substrates in ELISA? Why, or why

A: * ELISA is called as enzyme linked immunoassay which is used to detect antibodies in blood. *An…

Q: Why is the thick blood smear left unfixed in methanol?

A:

Q: Tissue culture media is a buffered nutrient solution used in laboratories to grow mammalian tissue…

A: Buffers are the aqueous solutions that contain both, weak acids and a weak base that can resist…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.