Compare and contrast internal validity and external validity. Be sure to define these terms and give one example of each. internal validity:                   External validity  Definition: Example:

Q: 2. Vitamin B6 (pictured below) is a vitamin that is crucial to proper development and function.…

A: (A) The more electronegative atom receives partial negative charge in a chemical bond, while the…

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A: Mitosis is the process by which a cell replicates and then segregates its chromosomes, producing two…

Q: Identify the site of ribosomal subunit assembly

A: The ribosome is a macromolecular assembly that is involved in the synthesis or translation of…

Q: Is water acceptable for potable or Recreational use? Explain.

A: Introduction The reason why water is such a good solvent is, Water molecules have 2 hydrogen atoms…

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A: Neutrophils are the type of white blood cells which help in fighting off the infection and…

Q: What is Critical Quality Attributes (CQA)  and Critical Process Parameters (CPP)  and relation…

A: Introduction  A parameter is a variable whose measure provides an indication of a quantity or…

Q: Which phase of cell growth is disrupted by antimetabolites? Explain how folate functions as…

A: Antimetabolites are the cytotoxic type of drug because they kill cells, they done their work by…

Q: Annotation involves identifying genes and gene-regulatorysequences in a genome. List and describe…

A: The process of annotating a sequence usually begins by comparing it with known sequences already…

Q: The hormones that drive frog metamorphosis are metamorphosis are.. a. T3 and T4; juvenile hormone…

A: Following birth or hatching, an animal's physical development involves a visible and typically…

Q: describe the steps necessary to determine a 3-Dimensional structure using electron microscopy…

A: To obtain the necessary number of views required for the determination of the three dimensional…

Q: RFLP analysis involves the following, except ________ . a. more than one restriction sites b.gene…

A: Restriction Fragment Length Polymorphism An enzymatic process called RFLP is used to separate and…

Q: Please help complete the table and please include reference if there is

A: Introduction::Most important plant families worldwide • Asteraceae or Compositae (daisy family):…

Q: Whilst fishing, you catch an animal with a long, cylindrical body. You take it back to the lab for…

A: The diverse kind of organisms are present on the earth. A large kind of organisms are present. The…

Q: The five different predator phenotypes will be represented equally at the start of the simulation.…

A: Predator-mediated phenotypic plasticity is commonly found in the nature. Phenotypes of prey species…

Q: What are the transcription factors?

A: In transcription, DNA sequences are copied (transcribed) into RNA molecules. A gene's information is…

Q: The color of Andalusian chickens results from the inheritance of alleles that exhibit incomplete…

A: Introduction  Genetics makes a distinction between genotype and phenotype. An organism's entire…

Q: gest how natural aroma molecules with coconut fragrance profile can be extracted from extra virgin…

A: The purpose of perfume is to impart a pleasant scent to the bodies of people, animals, food,…

Q: Features of continuous cell culture include the following, except ________ . a.addition of product…

A: Introduction: A single cell type that may be serially multiplied in culture for a set number of cell…

Q: Comment on how an understanding of gene control mechanisms in cells could translate into ways to…

A: Introduction Gene expression:- It is the process by which information from a gene is used to make a…

Q: Which of the following is the basic premise of the model? the population's allele and genotype…

A: Introduction  The branch of biology known as evolutionary biology examines how natural selection,…

Q: Which of the given below organelle of a cell conduct respiration? 1. Chloroplast  2. Mitochondria…

A: The answer to the question is given below,

Q: What is barometric pressure? How is it related to physiologic pressure measurements?

A: A human or other vertebrate's complete body is circulated by a system of organs called the blood…

Q: People who carry a theoretical genetic disorder (called B-disease) can be identified from a 2kb DNA…

A: To find out the number of heterozygotes and homozygotes in a population, typically the Hardy…

Q: What are all the different tipes of plant tissues

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Q: call and describe the form of the grass food chain!

A: A food chain where photosynthesis is used to obtain energy at the lowest trophic level is the…

Q: What is the role of negative feedback in a cell-signalling pathway?     To switch off a signal once…

A: Introduction: Feedback is the knowledge gathered about how a product is received that enables the…

Q: What mechanisms cause airway obstruction in asthma?

A: Diseases involving airway obstruction that get worse with expiration are referred to as obstructive…

Q: 1) The primary means of sustaining a competitive advantage is to adjust faster to the environment…

A: Introduction Competitive advantage refers to the ability of an organisation to serve more…

Q: The Four Defined major nutritional categories of life are Photoautotroph, photochemotroph,…

A: Autrotrophic nutrition the mode of nutrition in which an organism prepares its own food and does not…

Q: 5. Some bacteria live in hot springs where the water can be 70°C or higher. Based on what you…

A: Enzymes These are biocatalysts that have the ability to speed up the chemical reactions in…

Q: make note on tubulin inhibitors and role of taxols as mitotic inhibitors

A: In mitosis cell division cells are divided and form two genetically identical daughter cells.

Q: DEFINE BIOREMEDIATION. DISCUSS THE TECHNIQUES, CLASSIFICATION, TECHNIQUES, BENEFITS, LIMITATIONS,…

A: Bioremediation is the term used to describe the process of using living organisms - usually bacteria…

Q: e homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a…

A: Dominant gain-of-function mutations affect just one copy of an allele and result in the production…

Q: The universe imbued itself with life, intelligence, (and love). Why?

A: Universe if to be summed up in a word is everything. The universe is all the space, matter, and…

Q: 7. Explain the differences between integral and peripheral membrane proteins.

A: The plasma membrane is composed of phospholipid bilayer in which proteins are present as small…

Q: Explain the difference between an exon and an intron

A: The difference between an exon and an intron are- Introns are found only in eukaryotes where as the…

Q: Describe the process of oxyhemoglobin association and dissociation.

A: Oxyhemoglobin is the hemoglobin bound to oxygen. There is a dynamic relation between the binding of…

Q: 1. List 3 or more major organs/parts involved in this system. 2. Explain in detail how this system…

A: Introduction The nervous system is called the command centre of the body as it controls all…

Q: Make a drawing of the double recombinant plasmid containing all four fragments. Label fragment…

A: There are various options for rejoining molecules when the pKAN and pAMP fragments are combined.…

Q: What is the function of the finger-like appendages that form part of a gurnard’s pectoral fins?

A: Gurnard are a small predatory demersal fish, found around most of the British Isles. They are a…

Q: One of the parent of an organism has pure curly hair, CC and the other parent has a gene of Cc. (C…

A: Introduction  The genotypes of a specific cross or breeding experiment are predicted using the…

Q: Q.No.06:-Skull is dolicho cephalic when cephalic index is:- a) 65 to 70 b) 70 to 74.9 c) 75 to 79.9…

A: The sagittal sutures, which run from the front to the back of the skull, prematurely close together…

Q: If a double stranded DNA has 30 percent of cytosine, calculate the percentage of adenine in DNA

A: Introduction  DNA is an organic molecule that holds instructions for synthesising proteins as well…

Q: If the genotype AA is susceptible to malaria but with no sickling, the genotype AS is resistant to…

A: Introduction  Sickle cell disease, an inherited blood condition, manifests itself as sickle cell…

Q: C. Male Organs Select the structures described by the statements below. bulbourethral gland corpora…

A: There are several sex organs in the male reproductive system which are involved in human…

Q: Prevention (CDC) and public health officials recommend that every child receive certain vaccinations…

A: One of the greatest contributions to public health is immunisation, which each year saves billions…

Q: A. Variation among individuals must be genetically transmissible to the next generation.   B.…

A: Natural selection is the key process in the evolutionary mechanism. Here there is 4 major theories…

Q: Explain differences between whole-genome sequencing (WGS)and whole-exome sequencing (WES), and…

A: The human genome is composed of 23 pairs of chromosomes in the nuclei of a cell and studied…

Q: The specimen below is what type of primate? Strepsirhine    Platyrrhine    Catarrhine

A: Introduction Primates are mammals that include lorisids, lemurs, humans, tarsiers, monkeys and apes.…

Q: i) Based on the above given scenario, describe the importance of lubricating in forming process. E…

A: Clay is formed from the weathering of rocks in the presence of air,water or steam. It is a very…