If lung alveolar air PO2 = 100 mm Hg, we should expect blood leaving the lungs to have a PO2 _______ mm Hg. less than 100 mm Hg higher than 100 mm Hg equal to 100 mm Hg

Q: Contraction of sarcomeres is dependent upon the motor protein attached to and moving along

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Q: A very small number of producers, and an overabundance of decomposers is characteristic of an…

A: Producers are the green plants which produce food  in the form of glucose with the help of Sunlight,…

Q: which of the following is a result of colonization by mutualistic and commensal microbes? (multiple…

A: The Human body is the host of millions of microorganisms, most of which are beneficial and if…

Q: Slow block to polyspermy is linked to the cytosolic accumulation of the ion Select one: sodium O b.…

A: A polyspermy egg is one that has been fertilised by several sperm. Every chromosome in a diploid…

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A: Asthma is a chronic inflammatory disorder of the airways, which can cause difficulty in breathing…

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A: ABA causes stress-related reactions in plants, such as seed dormancy and stomatal closure.  Immune…

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Q: You are examining a soil sample under a microscope and find a spore in the sample. What kind of…

A: Gametes are the sexual reproduction agents, whereas spores are the asexual reproduction agents.…

Q: Describe characteristics of Proteus Vulgaris in the Agar: (How does colonies look like (color) and…

A: Proteus vulgaris is a gram negative, rod shaped, facultative anaerobic and heterotrophic, and…

Q: Use the following data to calculate the original bacterial sample. 1 ml Sample of E. coli 1/10 OF-10…

A: Bacteria is a ubiquitous microscopic prokaryotic organisms which does not contain true nucleus and…

Q: 22. The urease test is used to help identify members of speci of its ability to catalyze urea…

A: Urease test  *This is the test is used to differentiate organisms based on their ability to…

Q: What prevents the lakes of colder parts of the world from freezing solid from bottom up? Water in…

A: Warm water generally gets more dense as it gets colder, and therefore sinks. This fact may lead you…

Q: Anti-A antibodies are added to a blood sample to detect Anti-B antibodies are added to a blood…

A: Introduction :  There are some proteins in the blood called antibodies and antigens which differ…

Q: Which of the following plates (dilution factor) would you count/use to determine the original…

A: Dilution factor is a measure of the decrease in concentration of a solution that occurs in a…

Q: Which of the following is not associated with proteins? a.) amino acids b.) hydrogenation c.)…

A: Proteins are formed from different amino acids .  They are bound together by peptide bonds and the…

Q: Which of the following is not an organelle? Select one: a. nucleus Ob. ribosome O c. chloroplast Od.…

A: The cell is the structural and functional unit of life.

Q: Mosses and Ferns are similar in that both ? a, have a dominant sporophyte Ob. are homosporous c. are…

A: Introduction :  Gametophyte : In the gametophyte stage, haploid (n) gametes, sperm, and eggs are…

Q: QUESTION 48 In facilitated diffusion, the diffusion rate of a specific molecule across a membrane…

A: Due to the carrier's role, assisted diffusion normally moves along more quickly than simple…

Q: O Do concussions cause memory loss?

A: A brain injury is caused by an external force, but it also includes any subsequent repercussions,…

Q: 5: Asthma is best described as:

A: Asthma is a medical condition related to difficulty in breathing, based on its triggers it can be…

Q: Ch. 8: Which of the following statements is FALSE about leiomyomas? a) They are also called uterine…

A: Leiomyomas, or uterine fibroids, are noncancerous growths that develop in and around the uterus.…

Q: Explain why each of the following questions are best answered by an observational study or an…

A: The collection, analysis, and interpretation of data are crucial parts of statistics. The data can…

Q: Which of the following summarizes the role of acetylcholinesterase in muscle contraction? O opens…

A: Acetylcholinesterase (AChE) is an enzyme that breaks down the neurotransmitter acetylcholine in the…

Q: A patient was scheduled for a full lipoprotein profile that requires that the patient fast for 12…

A: Introduction  A blood test called the lipoprotein profile measures the levels of certain lipids…

Q: Mannitol Salt Agar (MSA) and Eosin Methylene Blue Agar (EMB) are both exam of selective and…

A: Nutrient Media is enriched with chemically synthesized and/ or naturally extracted components,…

Q: Which of the following will be found is found in mice cells and prokaryotic cells Select one: O a.…

A: Cells are the structural units of living beings. Each organism is composed of one or more cells.

Q: Which of the following is false? Every cell in the body makes every protein. Each cell contains an…

A: Introduction: All cells' primary operating molecules and structural constituents are proteins. All…

Q: 1. Determine if the following are:  HOMOLOGOUS, ANALOGOUS, VESTIGIAL structures ________1a. Human…

A: Introduction: Natural selection or mutation could lead to adaptation. The rapid genetic alteration…

Q: Around 8,000 years ago wild potato's were being harvested by humans in South America. They were from…

A: Natural selection is the selection process through which the population of living organisms adapt to…

Q: summarize how autonomous nervous system (ANS) function ? short paragraph please

A: The two main parts of the nervous system of bilateral animals are the central nervous system (CNS)…

Q: 4.4. The indoor air temperature is 25°C according to dry-bulb thermometer and 19°C according to…

A: Indoor equivalent effective temperature (IEET) is a measure of the combined effects of air…

Q: Which of the following would BEST help conserve biodiversity. CHOOSE ONLY ONE a. Plant native trees…

A: Biodiversity Conservation refers to upliftment, management and protection of biodiversity for…

Q: How does intensity and duration impact the type and amount of CHO consumed during an activity?

A: Carbohydrates, Proteins and Fats are the three important molecules which makeup the body system.…

Q: What happens to the immune system during the acute, chronic (asymptomatic) and final phases of HIV…

A: Human Immunodeficiency Virus also known as HIV is a virus that attacks and weakens natural defensive…

Q: Ch. 8: Failure of the testes to descend from the abdomen to the scrotum during development in utero…

A: • Priapism : It's a prelonged erection of the external genitalia in male without sexual arousal male…

Q: The nucleic acid of a virus is

A: A virus is a submicroscopic infectious agent that replicates only inside the living cells of an…

Q: A researcher who studies bilogical memrbanes wanted to know the diffusion constant of phospholipids…

A: "Permeability signifies the ease with which a molecule can pass through a cell membrane." One of the…

Q: Cystic fibrosis (CF) is a disorder caused by a random change in the gene that produces the cystic…

A: Cystic fibrosis is a genetic disorder that affects the lungs and digestive system. It is caused by a…

Q: Multiple sclerosis is an autoimmune disease characterized by production of auto-antibodies directed…

A: Multiple sclerosis is a disease of brain and spinal cord. In multiple sclerosis, the immune system…

Q: A D E F Terms: (not all terms/phrases will be used) Cell Wall Chloroplast Mitochondria Nucleoid…

A: Introduction Animal cells are eukaryotic cells with no cell wall. These cells contain well defined…

Q: Which of the following statements regarding transduction is FALSE? A) transduction reduces genetic…

A: A virus moves its genetic information from one bacterium to another through a process called…

Q: If a cell needs to rapidly acquire small dissolved substances (non-specific), which process will…

A: Introduction Bulk transport mechanisms:- It is a transport of large particles across the cell…

Q: When can we say that HIV has progressed to the stage of AIDS? List several signs and explain why…

A: HIV or the Humans Immunodeficiency Virus is a virus that affects the immune system of individuals…

Q: The evolution / development of the skeletal system of the vertebrate is an example of the process of…

A: Osteoblasts create both endochondral and intramembranous bones, whereas osteoclasts destroy the…

Q: All of the following statements are correct EXCEPT a. Prokaryotic cells do not have a cytoskeleton.…

A: The cytoskeleton are a system of filaments or protein fibres that are present in the cytoplasm that…

Q: a salt water protist is placed in fresh water. Which of the following events would most likely…

A: A saltwater protist is placed into freshwater. Since the protist has a higher salt concentration…

Q: Active transport of a substanceacross a membrane requires A A gradient B the expenditure of ATP…

A: Introduction Movements of ions and molecules in and across the cell membrane are regulated by a set…

Q: How many total sister chromatids would be present a human cell for the following?  1) Mitosis,…

A: Sister chromatids are identical copies of chromatids that are formed during replication. They are…

Q: In the evolution of the vertebrates , the myocytes provide the stem cells for a) smooth mucscles…

A: The primary component of muscle tissue is the myocyte, often known as the muscle fiber. They are…

Q: Ch. 7: All of the following may lead to chronic kidney disease EXCEPT: a) renal artery stenosis b)…

A: To prevent a stone recurrence, guidelines advise increasing water consumption to produce a urine…