"Optimal Branching of Arteries": What is the optimal angle at which a branching from an artery takes place in order to reach a given position of the body? Assume the artery is a line segment. Remember the size of the angle is a function of the amount of work (measured by the resistance of the system - the greater the resistance, the greater the work) to be done to push a given volume of fluid through the body.

Q: Watch this animation (http://openstaxcollege.org/l/braindevel) to examine the development of the bra...

A: The neural tube’s anterior end during embryonic development enlarges to form the primary vesicles, w...

Q: Harsha Aggarwal please answer Explain how activation of B cells occurs.

A: B cells are the lymphocytes that produce antibodies and are the components of humoral immunity. Plas...

Q: 3 all the teeth has cusp

A: The teeth are the hardest substances within the human body. Other than being essential for chewing, ...

Q: Is this correct answer?1. Epidermis of the thick skin2. Dermal Papilla4. Papillary layer5. Duct of s...

A: The skin the largest organ in the human body. It protects the muscle, helps in homeostasis, and part...

Q: Nociceptors are tonic rather than phasic receptors.Speculate on why this is beneficial to homeostasi...

A: Sensory receptors are neurons that respond to specific sensory stimuli such as pain, touch, light, t...

Q: Which of the following correctly describes the results of andropause? Select one: a. Reduction of ...

A: Just like female undergoes menopause, men do not go through a well defined menstruation cycle period...

Q: What types of substances diffuse most readily through a cell membrane?

A: Cellular transport is very essential for the transport of various molecules from one cell to another...

Q: Define omentum

A: In anatomy, omentum refers to the fatty sheet that remains covered by the peritoneum; it is structur...

Q: Define menarche

A: The menstrual cycle is a series of gradual changes in the female reproductive system's uterus and ov...

Q: Describe the importance of pre- and post-exercise nutrition choices. Provide examples of foods that ...

A: The process of obtaining the food which is required for the heath and growth of an organism is refer...

Q: Do the coronary arteries fill with blood when the ventriclescontract or when they relax?

A: Coronary arteries supply blood to the heart muscle. Like all other tissues in the body, the heart mu...

Q: Enzymes are: A. proteins B. monomers C. lipids D. phospholipids

A: Enzymes helps to speed up the chemical reactions in the human body, that bind to the specific substr...

Q: Which of these ions is used to symport amino acids, glucose, and othersolutes through the apical mem...

A: The process by which metabolic waste products are eliminated from the body of animals is called excr...

Q: 2.ur The collection of all the genetic information of an individual is called the: A. gene B. genome...

A: A genome is all genetic material of an organism. It consists of DNA (or RNA in RNA viruses). The gen...

Q: identify tissue shown in the image a. compact woven bone h comnact lamellar bone

A: Bone is a specialized connective tissue which is formed of cells and extracellular substance- matrix...

Q: Describe briefly Muscles of the Lower Leg and Foot & create a table showing a summary of these m...

A: Muscles are the largest delicate tissues of the musculoskeletal framework. Muscle is inferred from t...

Q: describe the structure of the intervertebral discs and theirrelationship to the vertebrae

A: The vertebral column of the adult is made up of 26 bones which are known as vertebrae. The vertebral...

Q: understand: The acronym, OilRig, is used to help a person A. that Oxidation involves “gaining" elect...

A: The oxidation process is a combination of elements with oxygen. It can also be stated as a reaction ...

Q: Contrast the structure and characteristics of collagenfibers, reticular fibers, and elastic fibers.

A: The fibroblast is the most common type of cell found in the connective tissue. Proteins and polysacc...

Q: Relate the functions of platelets in preventing bloodloss.

A: Blood  Blood is a connective tissue composed of blood plasma (a liquid extracellular matrix) and for...

Q: The definition of heredity

A: Heredity can be defined as the process in which genetic traits are passed down from the parents to t...

Q: 1). Which nucleotides make up a DNA strand? 2). Which nucleotides make up an RNA strand? 3). Explain...

A: Since you have posted a question with multiple subparts, we are instructed to answer the first three...

Q: The greatest percentage of the body’s wateris ina. the blood plasma.b. the lymph.c. the intracellula...

A: Water being a very important fluid without which we cant live is vital for every system and function...

Q: From what structure are epinephrine and norepinephrinereleased following sympathetic stimulation?

A: Epinephrine and norepinephrine are hormones that control the contraction of involuntary muscles incl...

Q: Using your textbook or another reference, determine what type of anemia could cause a reduced hemogl...

A: Anemia is a medical condition that refers to the low number of healthy RBC required to supply oxygen...

Q: 47. Which of the following cell-organelles is responsible for most of the ATP-production within a ce...

A: Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and ...

Q: Describe bile secretion

A: Bile is the secretion of the liver. It is greenish to brownish color and helps in the metabolism of ...

Q: What chemical is the structural basis of the bile salts, Vitamin D, and all of the steroid hormones ...

A: Hormones are chemical messengers that are discharged specifically into the blood, which carries them...

Q: Question 8 You can tell what an organism is capable of digesting By looking at its teeth O By lookin...

A: All living organisms require food for energy and organic matter for growth. Food is an organic compo...

Q: need help with following

A: Since you have posted multiple questions, we will answer the first question for you. If you need any...

Q: Does follicle stimulating hormone (FSH) in the male reproductive system increase the production of i...

A: Follicle stimulating hormone is the gonadotrophic hormone that is released by the pituitary gland in...

Q: Which of the following is an example of an anabolic reaction? A. the production of ATP from carbon d...

A: Anabolic reactions are those that involve formation of a larger molecule from smaller molecules. Ana...

Q: 24. Which of the following molecules possess both polar and non-polar regions? A. triglycerides B. c...

A: The human body is a complex and well coordinated assembly of organ systems and tissues. All of these...

Q: List some common GI changes that occur during pregnancy and their causes

A: `The muscles that break down food become more relaxed during pregnancy. Hormone changes also slow do...

Q: Stomach acid: •All of these •None of these •Does not allow an environment for microorganisms to live...

A: Stomach acid or gastric acid is produced within the lining of the stomach. The pH range is normally ...

Q: pathophysiology of the digestion system

A: The digestive system plays a major role in breaking down the food into small particles or nutrients....

Q: If the cardioinhibitory center of the medulla oblongata were damaged, which division of the autonomi...

A: The rhythmic contraction of the heart is under the influence of the autonomic nervous system and is ...

Q: 10. The thickness of a female's endometrium changes in response to other events. What event is indic...

A: The uterus is an important internal organ of the female reproductive system, and the development of ...

Q: The amount of plasma that enters the Bowman capsule per minuteis thea. GFR. c. renal fraction.b. ren...

A: The Bowman's capsule is established in the exterior part of the kidney, the cortex. Almost, the caps...

Q: Why is it important for bone remodeling to occur?

A: Bone remodeling is a process in which there occurs removal of mature bone tissue by the new bone tis...

Q: Describe the sympathetic function of the adrenal medulla

A: Adrenal glands are also called suprarenal glands. These are a pair of glands that are located on the...

Q: Starvation sets in after 3 to 4 days without food. Which hormones change in response to low glucose ...

A: GLUCAGON :  it is a hormone that is involved in controlling blood sugar ( glucose ) levels . It is p...

Q: Explain the anatomy and location of the ureters, urinarybladder, and the male and female urethras.

A: The urinary system is often known as a renal system and consists of series of ducts and organs like ...

Q: Describe how long bones grow in length.?

A: The skeletal system consisting of bones is primarily responsible for providing the structural framew...

Q: An excessive concentration of potassiumions in the blood is called---------------------

A: Potassium is the third most abundant mineral in the body that regulates fluid and involved in nerve ...

Q: How do scientists publish their data? (ie. articles like Neuron) How do magazines for the public (ie...

A: A scientific article is the publication of a scientist with a full experiment and thesis defining th...

Q: Identify and describe the three phases of a twitch contraction

A: Decrease in the length of a muscle or an increase in tension across it results in the contraction of...

Q: structure of the digestive system

A: The digestive system plays a major role in breaking down the food into small particles or nutrients....

Q: Compare and contrast merocrine and holocrine secretion?

A: Glandular secretion is referred to as the chemicals that are secreted by the glands. The gland is a ...

Q: What are the functions of the ureters, urinary bladder, andurethra? Describe their structure, includ...

A: The kidneys contain urine and are responsible for the urinary system's other functions. Urine is car...