What type of health policies improve the health outcome of low-income communities?

Q: A cat has front legs, and a bird has wings. Are these front legs and wings an example of homologous…

A: Introduction  Evolution is the process of change in all forms of life over generations, and is…

Q: How close are complement systems to the odometer on a bicycle, and what key distinctions exist…

A: The complement system is a complex set of proteins and pathways in the immune system that helps to…

Q: Define and compare osteomalacia to osteoporosis in relation to the disease process and the most…

A: Osteomalacia is a medical condition that refers to a softening of the bones, which is often caused…

Q: During photosynthesis, photons are absorbed by ______, located in the _________ Select one: a.…

A: Photosynthesis:  Photosynthesis is the process by which plants, algae, and some bacteria convert…

Q: 1. If a single transition occurs in a codon that specifies Phe. List all the possible mutated codons…

A: Transition Mutation: In genetics and molecular biology, the term "transition" refers to a point…

Q: which organell is directly outside of the nucleus?

A: Introduction:- Cell is the basic structural and functional unit of life. Cells are of two types, on…

Q: How the sodium potassium pump works in primary active transport? The renin angiotensin aldosterone…

A: Active transport in cellular biology refers to the movement of molecules or ions across a cell…

Q: In the redox reaction below, molecule A becomes ____ and NADPH becomes ___ A + NADPH --> B + NADP…

A: Introduction :  A reduced form of NADP+ is NADPH. It is utilised in assimilation processes that…

Q: This element is not an essential or beneficial nutrient, but rather toxic_____ Select one: a. zinc…

A: Carbon is a basic building block of every biomolecule in body. Sulphur is found in proteins. Zinc is…

Q: Consider the following three-point (trihybrid) testcross: + b 10.6 m.u. 13.4 m.u. X abc/abc What are…

A: Introduction Gene is defined as the physical basis of heredity. A gene exists in two alternative…

Q: 1. If there was a negative charge at Ser 80 or Lys 84 which amino acid could be switched out and…

A: Amino acids are the building blocks of proteins and are joined together by peptide bonds. In a…

Q: explain in detail Altered T cell function and how Ageing can also lead to changes in T cell…

A: Introduction  T cells, also known as T lymphocytes, are a type of white blood cell that play a…

Q: You perform a Minimum Inhibitory Concentration (MIC) assay on a bacterium that you have isolated…

A: Q. Ans:-  Explanation:- Minimum Inhibitory concentration (MIC) is the concentration of antibiotics…

Q: Why does Complex II use FAD instead of NAD+ as its electron acceptor?

A: Cellular respiration is a metabolic phenomenon in which glucose molecule is degraded and results in…

Q: Cytokine receptors and tyrosine kinase receptors are similar in all of the following ways EXCEPT…

A: Cytokine receptors and tyrosine kinase receptors are both types of transmembrane receptors involved…

Q: How many individuals have the same mitochondrial DNA as G? (Do not count G.) O 12 O 10 8 02 01 O 4 A…

A: As per our guidelines we are supposed to answer only- One question (If there are multiple questions…

Q: Feeding and gas exchange in chordates is via pharyngeal gill slits.   True   False   In tunicate…

A: Introduction :- The notochord is a defining characteristic of the Chordate phylum and is present in…

Q: 3. Zidovudine (AZT) is a drug used to treat patients with AIDS. AZT works by blocking the reverse…

A: Zidovudine  It is also known as AZT i.e. Azidothymidine. It is an antiretroviral medication used to…

Q: Define and where would you find a) sensory afferent neuron b) motor efferent neuron c) interneuron…

A: Introduction :- Sensory (afferent) neurons are neurons that carry information from the sensory…

Q: Explain the occurrence of peripheral oedema in congestive heart failure. Why would a person with…

A: Congestive heart failure The heart is not able to or strong enough to efficiently pumpin adequate…

Q: --- Je teeth are the baby teeth of an individual.

A: Teeth are hard white colored structures made up of enamel that arise from gums and help in chewing…

Q: Differentiate between bacterial infectionand bacterial intoxication.        Discuss the…

A: Bacteria are the prokaryogic microorganisms that infect the living beings. They can easily multiply…

Q: Gene Expression and the Central Dogma are what?

A: Introduction - Gene expression O Gene expression is the process by which information from a gene is…

Q: a)What osmotic pressures do Mytilus trossulus experience? b)Do Mytilus trossulus live in isosmotic…

A: Introduction :- Mytilus trossulus is a species of mussel that is found in the coastal waters of the…

Q: what some of the condition is and why it happens and how we can treat it and the best way to avoid…

A: Introduction  The cardiovascular system, also known as the circulatory system, is responsible for…

Q: Three systems of the body help regulate acid/base balance - buffer system, respiratory system and…

A: Introduction  The renal system, also known as the urinary system or the renal apparatus, is the body…

Q: A mutation is found in a tRNA-encoding gene. The wild type (non-mutant) allele (version) produces a…

A: tRNA (transfer RNA) is a type of RNA that helps decode the genetic information in mRNA to build…

Q: 2. A polypeptide for a gene has the following amino acid sequence: Met-Ser-Pro-Arg-Leu-Glu-Gly The…

A: A mutation is a permanent change in the DNA sequence that makes up a gene. Mutations can have a…

Q: Match the type of pathogen with the correct description. Can only replicate when it is inside of a…

A: Microorganisms, also known as microbes, are living organisms that are too small to be seen with the…

Q: Define the functions of biomembranes.

A: Introduction  Biomembranes are thin, flexible sheets of lipid and protein molecules that surround…

Q: dar D) Acridine Orange Stain Match the structures in column A to their functions in column B. Place…

A: Introduction :- Teichoic acids are a class of cell wall-associated molecules found in some types of…

Q: what are the possible probes of a 15- nucleotide length that would be used in a PCR reaction that…

A: Probes are fluorescently labelled DNA oligonucleotides used in PCR. They are designed in such a way…

Q: Why do close-relative marriages are now discouraged?

A: Marriage is the term that means the social and legal unity among a man and a woman. Earlier in many…

Q: How are DNA molecules visualized in a gel after electrophoresis? Why do DNA molecules migrate toward…

A: Introduction :  The particles (colloidal) have a tendency to migrate towards one or the other…

Q: keep this Tro happenir waiting room, you draw the following homeostatic feedback loop to further ain…

A: Alkalosis results from alkali accumulation or acid loss. It is associated with a secondary increase…

Q: PCR technique: Describe how this substance was purified from other components in the cells?

A: PCR (polymerase chain reaction) is a laboratory technique used to amplify specific segments of DNA.…

Q: “Animal personality” has been defined as consistent differences between individuals that persist…

A: The given information about time taken by individual anemones to reopen the tentacles on two…

Q: A medication is ordered at 75 mg/m2 IVP over 2 minutes. The patient has a BSA of 1.67 m2. If the…

A: Given, medication is 75 mg/m2 IVP over 2 minutes. Body surface area (BSA) of the patient = 1.67 m2…

Q: This is an essential micronutrient in plants Select one: a. selenium b. arsenic c. zinc d. sulfur e.…

A: Introduction :- Micronutrients are essential nutrients required in small amounts by living organisms…

Q: In which part of the alimentary canal does bile enter? When a protein folds into its tertiary…

A: Bile is a yellowish-green fluid that is produced by the liver and stored in the gallbladder. It is a…

Q: which is a hormone secreted by the ovary and adrenal cortex?

A: Estrogens are a group of hormones that play a crucial role in the development and function of the…

Q: Diastole and systole are terms that address the contracting and relaxing of the heart. Which of the…

A: Introduction :- This refers to the period during the cardiac cycle when the heart relaxes and blood…

Q: What kind of immune responses do insects have  a) adaptive immunity only  b) innate immunity only…

A: The immune system is responsible for protecting our body against pathogens. It has two main…

Q: Which of the following is mismatched? Epitope - Specific area on an antigen that interacts with…

A: Q. Ans:- Explanation:- The first statement is correct as the epitope is that region on the antigen…

Q: rect! You perform a Sanger sequencing reaction. The template strand is: 5' ATCGAAC 3' However, you…

A: Sanger sequencing, also known as chain termination sequencing, is a DNA sequencing method developed…

Q: RODAC plates will be used for which exercise? Select ALL that apply. A. Soil microbe enumeration B.…

A: Introduction : Lecithin and polysorbate, which are components of RODAC plates, a modified TSA…

Q: Production of epinephrine and norepinephrine by the adrenal medulla is controlled by the___?…

A: The production of hormones such as epinephrine and norepinephrine by the adrenal medulla is an…

Q: Which types of cells or cell components play an essential role in the blood clotting? Group of…

A: Blood clotting is a mechanism in which the liquid blood flowing out of the blood vessel due to the…

Q: Synaptic vesicles release into the synapse to give the message to the post synaptic neuron?…

A: Synapses:  A synapse is a physical component of the nervous system that enables a neuron (or nerve…

Q: What are the 2 types of adaptive immunity and what types of microbes do these adaptive immune…

A: Introduction :- Immunity refers to the ability of an organism to resist disease and infections.…

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.