1. what is the layer of adrenal gland which produces epinephrine called 2.what is the chemical messenger þhat increases the absorption of sodium ions in the blood called

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A: There are four valve present in the heart which helps in regulation of blood flow. Blood flow in a…

Q: 8. Clonal Selection Hypothesis is the most accepted theory for how immune cells respond to specific…

A: The theory postulates that a foreign antigen, invading our body, binds to one specific antibody…

Q: Gene X codes for a protein in eukaryotes. A mutated eukaryotic cell contains an altered base-pair in…

A: Gene is present in the DNA. The gene is a sequence of nucleotides that encode a polypeptide. The…

Q: What organ systems would be essential to operating for climbers attempting to scale Mt. Everest…

A: Following organ system must be in perfect condition to climb mount everest BrainLess oxygen in your…

Q: biosphere

A: Biosphere:  The earth has different components which include lithosphere, atmosphere and…

Q: Terminal arborizations are small branches of the axon that have swollen ends called bouton O True O…

A: An axon is a thin fiber that stretches out from a neuron, or nerve cell, and is liable for sending…

Q: Which of the following is true regarding the trachea? OIt is lined with rings of cartilage OIt…

A: Introduction :- The trachea functions as an airway, warms and moistens the air as it enters the…

Q: Are the remedies to climate change be worse than the impacts? Does it have the potential to drive…

A: climate change refers to long-term shifts in temperatures and weather patterns. These shifts may be…

Q: A conditional mutation when there is an alteration to the coding region of a gene  is caused by?…

A: A conditional mutation is a mutation that manifests as a mutant phenotype under one set of…

Q: Suppose you are lost in concentration while studying biology. Suddenly, the phone rings and it…

A: Introduction The adrenal glands are the endocrine gland. It is situated above the kidney. There are…

Q: Eubacteria can be found in almost any type of environment and are non- pathogenic O True O False

A: The living forms on this planet have been broadly classified into three categories - 1) Plants , 2)…

Q: A small region of the brain found above and in front of the medulla oblongata that serves as a relay…

A: First question: The brain is divided into three main regions - forebrain, midbrain and hindbrain.…

Q: Which of the following is not involved in first line defense? a-Mucus membranes b-Saliva c-Sweat…

A: Introduction :- The mouth, nose, eyelids, trachea (windpipe), lungs, stomach, intestines, ureters,…

Q: Type cell that allows you to sense and respond to stimuli are called: a-Skin cells b-Blood cells…

A: Introduction: Every living thing has to adapt to changes in its surroundings. Once this detection…

Q: The subendocardial layer contains O all of them elastic and collagen fibers and smooth muscle cells…

A: Introduction There are three layers present our heart wall. The outer layer is called epicardium,…

Q: Build the mRNA molecule matching the RNA nucleotides to the DNA nucleotides properly letter by…

A:

Q: A cell that is actively fighting bacteria would have a high number of: O Lysosomes Chloroplasts…

A: 1. A cell that is actively fighting bacteria would have a high number of: Lysosomes Chloroplasts…

Q: Q9. Who's gonna take you home tonight? There has been a mix up in the maternity ward. The babies…

A: Human blood group system is classified as 4 types A, B, AB and O based on the presence of antigen on…

Q: Three linked loci are evaluated to determine the recombination frequency of the loci. To set up the…

A: This is an example of a three-point crossover. Where 3 loci are involved. Each gene has 2 alleles,…

Q: Measles is an example of a disease caused by a bacterium. True False A dormant virus can be…

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Q: b) Draw graphical representation of the urban water cycle.

A: Urban Water Cycle: It is the general process that covers supply and sanitation services. It begins…

Q: lain the three autoimmune disease and the most important immunologic feature in theme.

A: The human body has about 37 trillion cells in total, although a significant portion of them are…

Q: What is the frequency of the B allele if allele b has a frequency of 0.24 and what are the three…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: The antelopes from Africa were delivered to the Kiev's zoo. The protozoans Trypanosoma gambiense…

A: Trypanosoma gambiense causes an insect borne disease 'Trypanosomiasis' in both humans and animals.…

Q: B-cells remember microorganisms and are helper cells. True False Recovering from a disease helps us…

A: Introduction: White blood cells known as lymphocytes are found in the blood and lymph of our bodies.…

Q: Which statement is TRUE regarding the glycolytic pathway? It includes five phosphate transfer…

A: Introduction  The metabolic process that turns glucose into pyruvic acid is known as glycolysis. The…

Q: Which of the following occurs during ventricular diastole? a-The ventricles contract to force blood…

A: During ventricular diastole, the following occur- b- The ventricles relax and refill with blood c-…

Q: All the following are containing collagen type I..EXCEPT: O Annulus fibrous O Perichondrium O…

A: The annulus fibrosus is a lamellar fibrocartilaginous tissue composed of 15–25 concentric rings or…

Q: Which protein directs the recombination exchange with a DNA that has failed a complete DNA…

A: DNA unwinds and the two strands detach at the "replication origins" a little at a time, like a…

Q: Enlist the example of the effect of vertebrate animal have on human.

A: Introduction: Vertebrates include mammals, birds, tortoises, amphibians, as well as fish, and the…

Q: QUESTION 9 What is the relationship between action potential conduction velocity and axonal…

A: Introduction :- The nervous system's ability to transmit information is constrained by the rate of…

Q: Which of the following statements concerning viruses and human health false? O in many diseases…

A: Antibiotics are medicines used to prevent and treat bacterial infections. Antibiotic resistance…

Q: outgroup, monophyletic and paraphyletic groups

A: A phylogenetic tree is the diagrammatic representation of evolutionary relationships between…

Q: Lamarck's theory of inheritance of acquired characteristics did NOT include which of the following…

A: Adaptive radiation is refers as rapid divergence.   In this case ancestral population diverse…

Q: Which is not one of the four characteristic symptoms of inflammation a-Redness b-Swelling c-Pain…

A: Introduction: Inflammation is the procedure by which ones brain's white blood cells and also the…

Q: Identify the three conditions caused by lgE medicated allergic reaction.

A: The immune system produces antibodies called immunoglobulin E (IgE). Your immune system overreacts…

Q: Microorganism/Causative Agent:  Candida albicans *for the discovery, who discovered it? when was…

A: Candida albicans C.albicans is a strain of yeast naturally found in the human gut and mucous…

Q: 1- What is NOT TRUE about the stages of the cellular respiration? a.Glycolysis is the first stage…

A: Cellular respiration is the process by which organisms use oxygen to break down food molecules to…

Q: Which part of the ribosome in bacteria, forms the catalytic site for peptide bond formation?  16S…

A: Gene is a hereditary units which is exhibited on the chromosome . Gene expression is a phenomenon in…

Q: 24. Why does the water move in the direction shown in the diagram? movement of water a. The water…

A: Answer 24- The water moves from an area where the solution of the solute is high.  Answer25-kidneys,…

Q: NON-SPECIFIC DEFENCES Blood clotting is a homeostatic response. When clotting is poor, even a slight…

A:

Q: Indicate the geographical adaptive type of person with the following features: large lung capacity,…

A: The overall well-being of an individual greatly depends on the geographical location of that…

Q: Which of the following are not tropic hormones? hGH and ACTH LH and TSH TSH and ACTH TSH and ADH The…

A: Tropic hormones are those that target different endocrine glands. The anterior pituitary produces…

Q: explain about intrinsic and extrinsic factors in food microbiology.

A: The connection among microbes as well as other living creatures on Earth is natural, continual, and…

Q: A dormant virus can be activated and enter the Lytic cycle True False Viruses produce toxins in…

A: Those viruese which have another phase of replication called as latent phase and these viruses…

Q: Which of the following is false regarding a DNA molecule? a-It contains a double helix structure…

A: Introduction :- Deoxyribonucleic acid is a polymer made of two polynucleotide chains that coil…

Q: What is the function of maltase? a-Breaks starch into glucose b-Breaks triglycerides into fatty…

A: Maltase This is an enzyme that catalyzes the reaction of hydrolysis. The maltase enzyme is found in…

Q: Man appealed to the laboratory in Middle Asia. He lived in village in the pise-walled house and…

A: Ticks Ticks are small parasites belonging to the phylum Arthropoda, capable of causing various…

Q: Use the following information to answer the next question Chemistry of Carbon Dioxide Transport CO₂…

A: 1) In the given reaction. CO2 is carbon dioxide. H2O is water. H2CO3 is carbonic anhydrase HCO3- is…

Q: Which statement BEST DESCRIBES the tRNA structure? A. Amino acids bind to the 5′ end of the tRNA…

A: Introduction: A significant class of ribonucleic acids is called transfer RNA (tRNA). During protein…