You see a patient who has Guillian-Barre Syndrome, a disorder where the body destroys Schwann cells. What do you hypothesize happens to the patient's knee reflex? It will be decreased because saltatory conduction won't occur It will be exaggerated because the patient will experience increased sensitivity in the dorsal root ganglia. It will be exaggerated because conduction velocity in the multipolar neuron is increased It will be decreased because the spinal cord has decreased white matter. 0000

Q: Pertussis, also known as whooping cough, is a highly contagious respiratory disease. Below is a…

A: Vaccines are biological preparation made up of killed, weakened, or inactivated toxins of specific…

Q: Evidence of Evolution 31. A biologist analyzes the DNA sequences in three different primates. The…

A: Species diversity is a measure of biological variety seen in a certain ecological community,…

Q: 3. Which of the following shows the correct hierarchy of classification from the most inclusive to…

A: 3. a) domain , kingdom, phylum, class, order, family, genus , species.      4. Only same…

Q: Define the following indices: FEV1-PEF-FVC. Give the units in which they are normally expressed

A: FEV1 is the amount of air you can force from your lungs in one second. It's measured during a…

Q: Does the plants shapes their environment? Yes or No. Explain and discuss your answer. Provide some…

A: Plants have the ability to detect and respond to alterations in the environment. Plants are present…

Q: Topic: The Emergence of Thought and Language: Cognitive Development in Infancy and Early Childhood.…

A: Introduction  Cognitive development is a branch of neuroscience and psychology that studies how a…

Q: Which organ is made up of air-carrying tubes and tiny sacs? The diaphragm The stomach The lungs The…

A: Introduction  Breathing is made possible by the respiratory system. They infuse our bodies with…

Q: Directions: Drag and drop the labels onto the plant cell diagram. In the space below, describe the…

A: Ans: Plant cells like animal cells are eukaryotic entities that have membrane bound organelles. The…

Q: 5. - In a paragraph Describe the role of non-specific macrophages in preventing infection. (150…

A: The ability of an organism to resist infection by disease causing organism or pathogen is known as…

Q: Behavioral isolation is considered which type of reproductive barrier? a prezygotic b postzygotic…

A: Reproductive barriers are the mechanisms or processes that prevent the reproduction ,i.e the ability…

Q: Question 6

A: Lamarckism or Lamarck's theory of evolution stated that acquired changes in a life of an organism…

Q: Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a)…

A: Introduction  A dichotomous key is a useful scientific tool for identifying various organisms based…

Q: 4) Do "protist" cells contain organelles like animal, plant, and fungal (i.e., mushrooms) do? A. yes…

A: Eukaryotes Eukaryotes are organism that possesses well-defined cell structures called the cell…

Q: Time (Years 21. The graph above shows data for the amount of light-colored and dark-colored peppered…

A: Natural selection Natural selection is a process by which an organism adapts to its natural…

Q: How would scientists study the effects of disturbances such as a volcanic eruption? (Simple answer)

A: The kind of natural calamities that we have experienced. We've seen several devastating earthquakes…

Q: . Illustrate the different types of Microtome. a. Identify its uses b. Identify its different parts…

A: In biology, microscopic studies are important to study the structure and organisation of different…

Q: (A) Monogamy is rare in mammals. Why?

A: Monogamy is defined as a mating system or committing to a sexual relationship with only one partner.…

Q: imagine a giraffe whose diploid is 30. A) what # of chromosomes will be present in a somatic cell at…

A: Introduction  Cell division is the process through which a parent cell divides into two new cells.…

Q: Enzyme-substrate complex Enzyme What concept does this picture illustrate? 4° structure hydrogen…

A: Introduction :- A catalyst is a substance that is used to influence the rate of a reaction. Enzymes…

Q: Q5) A person with severe myopia has a far point (a). (20cm) What is the strength of the lenses The…

A: Myopia (nearsightedness) - is a vision condition in which objects close to you are clearly visible…

Q: What is the structure that protects the lungs? heart pleural membrane chest cavity diapragm

A: Introduction  The lungs are a pair of air-filled, spongy organs on either side of the chest…

Q: Which parent isotope is most useful for dating samples that are greater than 100 million years old?…

A: Radioactive decay is a process in which the unstable isotopes (natural) emit radioactive particles.…

Q: 1. Explain the biosynthesis of caffeine.

A: Caffeine is a compound that works as a  stimulant and is found naturally in the plants of tea,…

Q: Describe how the Polycomb group proteins influence genome expression.

A: Polycomb proteins are first discovered in fruit flies I.e Drosophila melanogaster,during the…

Q: answer with good handwritten diagram.

A:

Q: Which is a disaccharide? O glucose O fructose O sucrose cellulose

A: Monosaccharides are the simplest carbohydrates; and are termed simple sugars. A disaccharide is the…

Q: I 7. Sarah believes that giraffes have long necks because those with long necks were able to reach…

A: Evolution is the change in characteristics of species from one generation to another.  Charles…

Q: Use the identity of the drug target to find the nucleic acid sequence of the gene that encodes the…

A: A biological target is a molecule located intrinsically in the body. Such molecules have the ability…

Q: 1.NAD+ is a nucleic acid, and NADH is a polysaccharide: True False

A: Introduction  The most abundant carbohydrates in diet are polysaccharides, often known as…

Q: 4.- Describe the main stages in the formation of a blood clot and evaluate the importance of…

A: Introduction When an injury occurs, hemostasis is the natural process that prevents blood loss.…

Q: asap please with explanation

A: Introduction :- The presence of changes in gene sequences between individual organisms of a species…

Q: Henry was studying two populations of the same species of lizards. One population lived on an island…

A: Gene flow is the process of alleles going from one population to another while genetic drift is the…

Q: Which of the following is characteristic of the end of the Paleozoic Era? a There was a mass…

A: As experts believe, the Earth was formed as a result of the Big Bang Explosion. The geological time…

Q: 6 of 7 B. The ancestors of whales once had femurs and pelvises C. Whales will be able to walk on…

A: Analogous structures are anatomically different but fuctionally similar.  Homologous…

Q: 16. How many mass extinctions has the Earth had so far? A. 1 B. 2 C. 5 D. 10 I am finis

A: Answers :  The total mass extinction on earth till now is  Option :  C                   5

Q: Match the polymer to its monomers. protein polysaccharide enzyme starch deoxyribonucleic acid…

A: Biomolecules occurs naturally in living organisms. All forms of life have biomolecules as their…

Q: 1. a) What is the purpose of negative feedback? b) Using the example of thermoregulation, explain…

A: As per our company guideline we are supposed to answer only first question. Kindly repost other…

Q: . What organ of plants has the highest concentration of caffeine? Answer this comprehensively.

A: Introduction Caffeine:- It is a natural stimulant most commonly found in tea, coffee, and cacao…

Q: What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that…

A: Endosymbiosis Symbiosis is a mutually beneficial relationship where both organisms are benefitted…

Q: What is NOT the function of hemoglobin in red blood cells? O Delivers CO2 from the body cells O…

A: Hemoglobin is an iron containing protien present in the blood of many animals. It carries oxygen…

Q: Organisms need nutrients in order to A. utilize hydrogen and oxygen B. recycle chemical compounds…

A: Introduction  An organism can be autotrophic or heterotrophic depending on its mechanism of…

Q: a. the device must be developed within 12 months b. one person can fly it without assistance c. the…

A: An environmental engineer is developing a portable aerial device designed to monitor wildlife in…

Q: Which of the following best describes saltatory conduction? A process in myelinated axons where the…

A: In contrast to the slow continuous process of depression extending down an unmyelinated axon,…

Q: The following terms are presented in this particular unit and these can affect the vital signs of…

A: A healthy person follows a regular diet, exercise program, and daily routine. If a person is…

Q: Sequencing reactions are done in separate tubes for each ddNTP with a radioactive primer. Which…

A: Gell electrophoresis is a biological apperatus mainly used in biotechnology or in case of genetic…

Q: G17. Color-blindness is a sex-linked recessive trait. Mr. Jones, a color-blind man, and Mrs. Jones,…

A: As per our honor code, we are allowed to answer only one question at a moment. I am answering the…

Q: Which of the following best defines gene flow? the sum of all genetic traits in a population's…

A: There are many factors which is responsible for changes in the allele frequency of the…

Q: 1. Can you predict the type of placentation a certain fruit will have if you can see only the…

A: According to Bartleby guidelines , we are supposed to answer first three subparts in case of…

Q: How can cells of the vertebrate immune system produce so many different immunoglobulins from a small…

A: Immunoglobulins Also called antibodies are made up of two heavy and light chains forming a Y-shaped…

Q: Give two fungal species of medical importance and briefly describe its contribution (benefits or…

A: Please follow step 2 for detailed explanation.