Presbycusis is an age-related hearing loss affecting individuals over the age of 65. Many affected individuals have difficulty understanding words because, although they may be able to hear the sound, they are unable to distinguish the exact words. This hearing loss is most noticeable at higher frequencies. Which of the following statements correctly describes an individual suffering from presbycusis? Select one: a. Individuals with presbycusis have damaged hair cells at the base of the cochlea, which is closest to the oval window. b. Increasing the volume of higher frequency sound allows individuals affected with presbycusis to hear better. c. Individuals with presbycusis have damaged hair cells at the apex of the cochlea, which is farthest from to the oval window. d. Decreasing the amplitude of lower frequency sound allows individuals affected with presbycusis to hear better.

Q: How do GHRH, GH, and IGFs function together to regulate growth?

A: The hormones are protein based chemical messengers which forms a part of the signaling molecules in ...

Q: Where is the primary gustatory cortex located?a. temporal lobeb. occipital lobec. frontal lobed. par...

A: Gustatory cortex refers to the region present in the brain's cerebral cortex and carries the percept...

Q: Define inhalation

A: The respiratory system is the network of organs and tissues that help you breathe. It includes your ...

Q: What are the properties of muscle tissue?

A: Myopropulsive tissue or muscle tissue are those tissues which form muscles and provide its ability t...

Q: Define chemosensitive area

A: Human beings possess several special abilities in them to control their body. The neural system cont...

Q: Define axoplasm

A: Neuron: Neuron is the structural and functional unit of nervous system. It is made up of three parts...

Q: What muscles are used to cause lateral and medialexcursion of the jaw?

A: Excursions referred to as the movement of the mandible while performing functions like chewing. The ...

Q: question 14

A: The human circulatory system comprises blood, blood vessels, and the heart. The blood circulating th...

Q: Define antagonist

A: The antagonist in anatomy and physiology is the muscle pair that opposes other muscle action. The an...

Q: Select one: True or False 1-Healing with permanents cell are reversible    2-Hashimoto's thyroidi...

A: Wound healing is a process where the missing cell structures and tissues are replaced with new cells...

Q: Define gene and genetic code and explain the function of genes.

A: A gene can be defined as the segment of the DNA. It is a unit of the hereditary. It governs the info...

Q: Define emission and ejaculation.

A: The male reproductive system includes external and internal organs. The major reproductive organs ar...

Q: How scrapie in sheep should be treated ?

A: Scrapie is defined as a rapidly progressive, neurodegenerative, and fatal disorder, occurring in she...

Q: Explain the process of fibrosis?

A: In case of any injury or inflammation, a scar is formed. It can be an internal scar or an external s...

Q: Define base stacking

A: Hydrogen bonds helps to pair up bases. It is responsible for specific pairing and interaction of bas...

Q: In his famous paper, Mendel writes that he set out to“determine the number of different forms in whi...

A: Mendel performed his experiments on garden peas to study the inheritance of characters in plants. He...

Q: Describe the relationship between structure and function incells.

A: Cell is the basic biological, structural, and functional unit of all the organisms. It is the smalle...

Q: All primates have two eyes that face forward. This includes humans. Having two eyes is an evolutiona...

A: The exterior representation of the retinal universe is basically flat but it is a three-dimensional ...

Q: Define cardiac cycle

A: The cardiovascular system refers to the heart, blood vessels and the blood. Blood contains oxygen an...

Q: Define blood island

A: The aggregation of splanchnic mesodermal cells in the embryo that gives rise to the blood and blood-...

Q: Sensory adaptation occurs when the brain filters out repetitious and/or insignificant information. I...

A: Sensory adaptation can be defined as a reduction in sensitivity to a stimulus after constant exposur...

Q: Define cellular respiration

A: Cellular respiration can be defined as a series of metabolic reactions that occurs within the cells ...

Q: Briefly discuss points that would support and refute the idea that the absence or underdevelopment o...

A: Autism spectrum disorder is a developmental disorder that affects communication and behavior. Autism...

Q: In type II diabetes, insulin is produced but is nonfunctional. These patients are described as “star...

A: Insulin plays a vital role in the regulation of glucose level in the bloodstream. Insulin is a pepti...

Q: Define sarcomere

A: Sarcomere can be defined as the unit of contraction in the muscle fibres. It consists of the actin a...

Q: Define endocytosis

A: Endocytosis is a cellular mechanism, by which a cell internalizes substances including proteins, flu...

Q: Name the structures that regulate the temperature of the testes, and explain how they function to pr...

A: The reproductive organs that function to produce the motile male gamete called sperm, and the sex ho...

Q: Which of the following correctly describes the olfactory sensory pathway? a. Olfactory cells → senso...

A: Olfaction refers to the process of sensing smell. It occurs through the olfactory nerve (first crani...

Q: How does contraction occurs in the body?

A: Muscle contraction is either due to increase in the tension or decrease in the length of the muscle....

Q: Define larynx

A: The respiratory system is responsible for circulation of air between the body and environment; and e...

Q: Explain how prostaglandins are similar to hormones and how they are different.

A: The body acts and carries its functions in a synchronized manner; this is possible as the different ...

Q: Where are the adrenal glands located? Describe theembryonic origins of the adrenal medulla and the a...

A: The adrenal glands are also called suprarenal glands. These are endocrine glands and produce a diver...

Q: Define anencephaly

A: The congenital disorder can be described as a medical disorder, which is present in an individual fr...

Q: A cochlear implant is very different from a hearing aid. Hearing aids amplify sound. A cochlear impl...

A:     The human ear serves as an amazing transducer, converting sound energy to mechanical energy to a...

Q: What is interphase? What role does it serve in the cell cycle?

A: Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G...

Q: Define embryology

A: Embryology can be defined as the branch of biology which deals with the study of the embryo. It incl...

Q: Define tunic

A: Tunic is defined as the membrane or layer which covers an organ. Tunica albuginea is a general term ...

Q: Define binding affinity

A: Binding affinity is conjointly measured as a part of the drug discovery method to assist design drug...

Q: Define corniculate cartilages

A: The two small conical nodules lying at mucous membrane's aryepiglottic folds that consist of yellow ...

Q: Define the bony boundaries of the orbits, nasal cavity, and paranasal sinuses.

A: A bone is a hard tissue which in animals, constitutes part of the vertebrate skeleton. Bones protect...

Q: Define chloride shift

A: Chloride shift can be defined as a phenomenon that occurs within the cardiovascular system. It is th...

Q: 1. Explain the mechanisms involved when a person blushes. What structures are involved in this respo...

A: Hi! Thank you for the questions. As you have posted multiple questions, I will be answering the firs...

Q: Define sclera

A: The eye is our organ of sight. The eye has a number of components which include but are not limited ...

Q: Mark the following statements about the cytoskeleton as true or false. If a statement is false, corr...

A: In a eukaryotic cell, the cytoplasm contains a network of filaments or fibres which provides its mec...

Q: Outline the events of puberty in females and males

A: Reproduction is defined as the process in which an offspring is produced from their parents. The phe...

Q: Describe the three meningeal layers that surround the central nervous system.

A: Meninges are membranous coverings of the spinal cord and the brain. These are three layers that prot...

Q: Define collecting duct

A: The collecting duct refers to the long twisting tubule that functions in collecting the urine from t...

Q: describe how the nephron regulates water excretion.

A: In humans, the nephrons function in a two-step process: the glomerulus filters the blood, and the tu...

Q: ______ increase the outer surface area of the plasma membraneto increase absorption.a. Centriolesb. ...

A: The cytoplasmic organelles are broadly classified into two types as membranous and nonmembranous org...

Q: Describe the hepatic portal system. Which veins drain intoit? What is the main function of the hepat...

A: Introduction: The venous system draining the gastrointestinal tract and takes the blood to the liver...