What is a motor unit? Explain why the size of motor unitscan be different in different muscles

Q: 2. Radiometric dating does not measure the age of an individual atom. It is a measure of the age of ...

A: Radiometric dating is a technique used to date the carbons, fossils and rocks to analyze its age and...

Q: Compare and contrast the following terms: Nucleus and nucleolus

A: The nucleus and nucleolus are both components of the cells that differ completely from each other. ...

Q: What is immunity?

A: Immunity can refer to any organism's ability to fight against a pathogen or toxin using the immune r...

Q: Are those the correct answers?

A: Cranium (Neurocranium) is one of the two chief bones that form the skull in human beings. Cranium is...

Q: What does hemopoiesis mean? After birth, what one celltype is the starting point for all hemopoiesis...

A: Hemopoiesis can be defined as the process in which the formation of the blood cells in living organi...

Q: Distinguish between essential and nonessential aminoacids, and between complete and incomplete prote...

A: Amino acids are organic compounds that combine to form proteins. Amino acids and proteins are the bu...

Q: ____ leads to increased osteoclast activity and elevates the blood calcium concentration. a. Parathy...

A: Hormones are small signaling molecules which act as chemical messengers. Hormones are mainly endocri...

Q: What other structures are located in the dermis?

A: The dermis is the middle layer of the skin found beneath the epidermis and above the subcutaneous la...

Q: a. Pulse pressure b. Mean arterial pressure Show your work for full credit. 2. State the normal rang...

A: Blood pressure is the force of circulating blood on the walls of the arteries and is necessary becau...

Q: What information is conducted by sensory pathways?

A: The sensory pathway comprises of neuronal chain initiating from receptor organ to the cerebral corte...

Q: Hypertrophic cardiomyopathy is always inherited, but the other forms may have other causes. List th...

A: Cardiomyopathy is defined as a myocardial disorder in which the heart muscle is structurally and fun...

Q: Are those the correct answers?

A: The skull is a part of the bone system and is responsible for the formation of the head. The skull i...

Q: An athlete is sweating profusely but does not rehydrate. The changing conditions are detected by osm...

A: Different organ systems constitute the human body. Each organ system is essential for maintaining th...

Q: Discuss the role estrogen has on the changes that occur during a female’s lifetime. Use your own la...

A: Estrogens are the primary female sex hormones and play important roles in both reproductive and non-...

Q: Explain the structural classification of the nervous system.

A: The human body consists of various system that function together in order to maintain equilibrium or...

Q: What do the cavities of the neural tube become in theadult brain?

A: The basic life cycle consists of various steps: fertilization, cleavage, gastrulation, and germ laye...

Q: Which structure is highlighted in the above image? Pulmonary vessel O Alveolar sac Terminal bronchio...

A: The lungs are the major organs involved in respiration. There is a pair of lungs located in the ches...

Q: What is receptor-mediated endocytosis?

A: The process of importing specific molecules in large amounts inside the cell after binding to surfac...

Q: Describe how  potassium is metabolized (where primarily digested, absorbed, and transported) within ...

A: Potassium is one of the most important constituents needed in our diet. It is required for the condu...

Q: During the ventricular ejection phase of the normal human cardiac cycle, one option is correct: a. e...

A: During the ventricular ejection phase of the cardiac cycle, there is contraction of the myocardium o...

Q: Distinguish between the thoracic duct and the right lymphatic duct.

A: Ther two lymph canals in the body: the right lymph duct and the thoracic duct. There are four sets o...

Q: What is the advantage of having a planktonic larval stage for benthic animals such as the sea urchin...

A: Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. Animalia. ...

Q: QUESTION 4 Which of the following is NOT an early symptom of ALS? O Difficulty swallowing O Leg weak...

A: The neural system is the highly complex system of the body that mediates an efficient interaction be...

Q: What two superficial veins are viewed on the surface of theleg?

A: Veins  A veins starts by the union of venous capillaries leading to the formation of venules which t...

Q: Watch this video (http://openstaxcollege.org/l/liver) to see the structure of the liver and how this...

A: The liver is the organ that participates in the digestive system. It produces bile which helps in th...

Q: Describe the mechanisms by which the kidneys regulateblood volume and erythrocyte production.

A: The kidney is a pair of excretory organs, a bean-shaped structure located in the abdomen, one on eit...

Q: What is the metabolism of carbohydrate on a power point slide

A: The digestion and absorption of nutrients, like carbohydrates, proteins, fats, vitamins, and mineral...

Q: Describe how meninges, cerebrospinal fluid, and the blood brain barrier protect the CNS.

A: The CNS is the body's production centre. Three layers of membranes, known as meninges, surround it. ...

Q: List all the content of a first aid box

A: A first aid kit is a collection of drugs and equipment that is used to give immediate  medical treat...

Q: Explain mechanistically how hyperventilation alters the oxygen cascade of an animal.

A: In human beings, the air is taken into the body through the nostrils of the nose. The respiratory or...

Q: Define the term Dual Innervation?

A: Introduction: The nervous system is the chief coordinating and controlling system of the body. It re...

Q: Explain why the “fingers” appear much longer in a dried, articulatedskeleton than in a hand with the...

A: In human anatomy, the metacarpal bones or metacarpus, form the intermediate part of the skeletal han...

Q: What is rhythmic convulsions?

A: Rhythmic convulsions can be defined as the medical condition in which rapid contraction and relaxati...

Q: Parkinson’s disease involves the loss of a particular neurotransmitter. Which neurotransmitter is in...

A: Parkinson's disease is a long-term degenerative disorder of the human central nervous system.  It is...

Q: Can you help with number 12   This is not and will not be graded

A: Irregular heartbeats (arrhythmia) are known as fibrillation. It can lead to hear, failure, blood clo...

Q: Movement of phloem sap from a source to a sink (A) occurs through the apoplast of sieve-tube element...

A: The sugar molecules (phloem sap) synthesized by the plant tissues (leaf) during photosynthesis needs...

Q: Why is the epiglottis important for Swallowing?

A: Human body consists of various systems that function together in order to lead a normal healthy life...

Q: Can UV lights kill SARS

A: SARS stands for Severe acute respiratory syndrome SARS is contagious and usually becomes a fatal res...

Q: Define clitoris

A: In humans, the female reproductive system is responsible for performing various functions such as th...

Q: What are three different classifications of burns?

A: Burns is the damage done to the skin because of exposure or accidental spillage by hot liquids, sun ...

Q: Describe the roles of different types of T cells.

A: The immune system is responsible for producing immune cells that help the body fight against any pat...

Q: Dehydration and hydrolysis reactions are essentially opposite reactions. How are they related to the...

A: The cellular process requires regular synthesis and degradation of biomolecules. This process is ess...

Q: When the blood pressure drops, the body responds by Select one: a. decreasing ADH production to de...

A: Blood pressure can be defined as the pressure of circulating blood against the walls of blood vessel...

Q: List the muscles used to create various facial expressions

A: The facial muscles are the voluntary striated muscles attached to the skull bones that function in m...

Q: Describe the size, shape, and location of the heart

A: Blood circulation Blood vessels are organized into circulatory routes that carry blood to specific o...

Q: Describe the sound conduction pathway to the fluids of the internal ear, and sound transduction.

A: Ear is a pair of sensory organ locate on both the sides of head. It converts or transduce sound ener...

Q: Is the retinal area in Figure the macula lutea, fovea centralis, or optic disc? Explain your choice.

A: The retina can be described as a sensory layer of nerve cells lining the eyeball's back surface. The...

Q: What conditions other than overeating might explain weight gain during pregnancy?

A: Pregnancy is when one or more embryos, often known as gestation, develop inside a human. In a simult...

Q: Enumerate and describe the different organism that can be found in ponds. Does they possible potosyn...

A: A shallow, nutrient rich pond, exposed to sunlight with little water flowing through it will be teem...

Q: Which of the following statements is true regarding Parkinson's disease? Parkinson's disease is typi...

A: The correct option is d. It is possible to reverse the effects of Parkinson's disease