In humans, the kidneys and urinary system are responsible for removing nitrogenous waste. Turbelarians however do not have kidneys. The part of the turbelarian that is most similar to the human urinary system is; The gastrovascular cavity The metanephridia The pharynx

Q: How does the sympathetic division of the autonomic nervoussystem affect the heart rate?

A: Nervous tissue is one of four major classes of tissues. It consists of neurons and supporting cells ...

Q: Explain the advantages of having elastic ligaments that extend from vertebrato vertebra in the verte...

A: Muscle is a dominant tissue in the heart and in the walls of other hollow organs. Muscle tissue make...

Q: Digestion of proteins begins in the ________ where ________ and ________ mix with food to break down...

A: The process of digestions refers to the simplification of food particles into forms that could be re...

Q: Compare and contrast the ball-and-socket joints of theshoulder and hip.

A: Ball and socket joints are synovial joints in which one bone's spheroid articular surface lies insid...

Q: What are two similarities and two differences between theright and left ventricles?

A: The heart is an organ found in animals that is responsible to pumps blood through blood vessels of o...

Q: If a person has a “brain tumor,” is it more likely to havedeveloped from neurons or from glial cells...

A: A brain tumor can be described as a medical condition during which an abnormal cell mass is accumula...

Q: Why is the wall of the left ventricle thicker thanthe wall of the right ventricle?

A: The circulatory system, also known as the cardiovascular system or the vascular system, is an organ ...

Q: Which of the following cells induces the formation of myelin sheath in the CNS? Select one: O A. ast...

A: The nervous system of the body is one of the organ systems that function to regulate the activity of...

Q: What is the function of the upper third skeletal muscle of the esophagus?

A: The digestive system of the human body is made up of a collection of organs that work together to tr...

Q: Elucidate the Symptoms, Causes and Treatment of:a) REM-Sleep behavior disorderb) Sleepwalkingc) Slee...

A: Sleep is a biologically complex operation. While you are unconscious while asleep, your brain and bo...

Q: List the divisions of the nervous system and describethe characteristics of each

A: Nervous system identifies and responds to the various internal and external stimuli and along with t...

Q: describe how hormones affect each other when two ormore of them stimulate the same target cells; and

A: The hormones are chemical messengers present in the human body which plays a crucial role in regulat...

Q: Define achondroplasia

A: The skeletal system is the entire framework of bones and their cartilages, along with the ligaments ...

Q: To fold the neural plate means to bend a sheet of epithelial cells. How can a row of attached boxes ...

A: The process invagination of the neural epithelial blocks of cells in the early embryo is also termed...

Q: The embryonic paramesonephric duct gives rise to the (a) uterus and uterine tubes, (b) ovary, (c) ep...

A: The reproductive system is an organ system composed of the organs associated with sexual reproductio...

Q: can microtubule replace actin filament？why or why not？

A: The cytoskeleton is a cellular framework that retains the morphology and internal order of the cell....

Q: What is life science ?

A: Life science is a branch that study the life processes and living of organisms in the environment. T...

Q: What organs do the gonadal veins drain?

A: The gonads are the primary reproductive organs in humans, the testes in the male and the ovaries in ...

Q: Neural Transmission is an electrochemical process”. With reference to the statement, what chemical c...

A: An action potential can be defined as the subsequent changes that occur within the membrane potentia...

Q: Define pulse

A: The blood circulating through the vessels of the circulatory system is responsible for the transport...

Q: Describe the general anatomy of synovial joints and theiraccessory structures

A: Joints are intricate constructions comprised of bone, muscles, synovium, ligament, and tendons that ...

Q: Define auditory cortex

A: The auditory cortex is a structure related to our brain. It is situated at the upper side portion of...

Q: Match the joint types in the key to the descriptions that apply to them (More than one joint type mi...

A: Joints are the articulations that connect one bone to another and allows movement in that area. Acco...

Q: In a table format compare the alimentary canal organs in terms of, muscle layers, enzymes, type of f...

A: The alimentary canal is a muscular hollow continuously tube organ that runs from the mouth to the an...

Q: What is the general amount of time required to maintain pH by (a) the chemical buffering systems, (b...

A: The steady-state which is maintained by the body by keeping the chemical, physical and internal stat...

Q: The coiling of the protein chain backbone into an alpha helix is referred to as the _____ structure ...

A: Proteins are the polypeptide chains. They contain amino acids that linked together by the peptide bo...

Q: match

A: In all mammals, including humans, the testicle or testis is the male reproductive gland or gonad. It...

Q: Define agranulocyte

A: The leukocytes, also called the white blood cells, are one of three formed elements of the blood tha...

Q: On what basis do fascial compartments group the muscles of the body?

A: Muscle tissue has properties that cause it to pass about. Muscle cells are excitable, meaning they r...

Q: Describe the response of rhodopsin to light stimuli. What is the outcome of this cascade of events?

A: The process by which the photons of light are perceived and then transformed into electrical signals...

Q: Would the primary response or the secondary response be more affected by a lack of memory B cells fo...

A: Introduction: B-cells are the bone marrow-derived lymphocytes that take part in antibody-mediated or...

Q: Describe stimuli and controls of digestive activity.

A: The cells in the lining of the stomach and small digestive tract produce and deliver hormones that c...

Q: match

A: The reproductive organ which functions in the males to synthesize the sperm cells and produce the ma...

Q: Compare the mechanisms of action, pharmacokinetics, indications, dosages, dosage forms, routes of ad...

A: Heart failure is the condition in which the heart fails to pump blood to the body. Common symptoms a...

Q: How did the genetic code originate?

A: The genetic code is the set of rules used by living cells to translate information encoded within ge...

Q: Describe the relationship between preganglionicand postganglionic neurons. Contrast somatic andauton...

A: The nervous system is the major organ system which is responsible for maintaining coordination among...

Q: What is semen?

A: The male reproductive system is required for sexual function and urination also and is mostly locate...

Q: Match each numbered item with the most closely related lettered item.1. flat bone of skull2. osteon3...

A: Bones are the structural and functional components of the skeletal system of the body that aids in p...

Q: What effect would increased levels of glucagon have on the amount of glycogen stored in the liver?

A: Polysaccharides are complex sugars and are commonly called glycans. They are formed by the linking o...

Q: List various skin functions and explain how the skin helps regulate body temperature.

A: Skin is the outermost layer of the body. It is usually made up of soft and flexible tissue that cove...

Q: In anatomical position the body is lying down.   Select one: a. False b. True

A: Anatomy is the study of the body structure and parts of organisms.

Q: The smallest white blood cells, which include B cells and T cells, area. eosinophils. c. neutrophils...

A: White Blood Cells do not contain hemoglobin in them. They are involved in the process giving immunit...

Q: Which division(s) of the nervous system may be involved in Guillain-Barre syndrome (GBS)?

A: In the human body, most of the nerves are covered with a protective insulating layer called myelin t...

Q: Bones that surround the spinal cord are classified as ________ bones.a. irregularb. sesamoidc. flatd...

A: The skeletal system is the entire framework of bones and their cartilages, along with the ligaments ...

Q: List several conditions that can stimulate the production ofadrenal medullary hormones. What role do...

A: Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace a...

Q: What important enzyme is found in the inner mitochondrial membrane other than those of the electron-...

A: Mitochondria is a double membrane bound organelle that is used to generate most of the chemical ener...

Q: How does aging affect blood vessel anatomy and function?

A: Aging is described as the progression of physiological changes in an individual that lead to a decre...

Q: Define bulb of the penis

A: The male reproductive system comprises some sex organs which play a role in the reproductive process...

Q: What two derived feanures define hominins relative to other apes? OMegadont molars OBipedal locomoti...

A: The Hominin is a taxonomic tribe of the subfamily Homininae, of which only one species exists today,...

Q: Watch this video (http://openstaxcollege.org/l/graymatter) to learn about the gray matter of the spi...

A: The spinal cord is situated in the posterior portion of the CNS. It runs mid-dorsally within the ver...