Categorize causes of population changes. Change Causes Size increase 1. 2. Size decrease 1. 2.

Q: Explain how cocaine and amphetamines produce their effects in the brain. What are the dangers of the...

A: Cocaine is a stimulant drug obtained from the coca plant leaves and used for medical purposes, and i...

Q: Identify the three types of cartilage, describing the extracellularmatrix of each type

A: The skeletal system is the arrangement formed by the collective contribution of the major skeletal e...

Q: Outline the general characteristics of the three types of skeletalmuscle fibers.

A: The muscles which help in the voluntary movements of the body is called skeletal muscles or voluntar...

Q: The sciatic nerve is actually two nerves combined within the samesheath. The two nerves are thea. fe...

A: Introduction: A fiber bundle that utilizes chemical and electrical signals for transmitting motor an...

Q: Skin tissue regeneration process

A: Skin is regarded as the biggest organ present in human beings. It serves many functions like protect...

Q: Example of itchy skin lesion

A: Itchy skin is an annoying/irritating and uncontrollable sensation, also known as scabies that makes ...

Q: Explain the process by which the male and female reproductive organs develop.

A: Reproduction can be defined as the process in which parents give rise to the offspring. The offsprin...

Q: List and describe the four tunics (layers) that make up the gastrointestinal wall.

A: Digestive system is made up of gastro intestinal tract or alimentary canal with the accessory organs...

Q: What type of lever is the knee joint?

A: The knee joint is a type of joint formed at the joining of the tibia, patella, and femur. This joint...

Q: Describe the events of gastrulation and the germ layers that result.

A: Gastrulation is the process during embryonic development that changes the embryo from a blastula wit...

Q: Define the role of the cerebellum

A: The brain's part between the cerebrum and the brain stem at the back of the head is also known as th...

Q: Inhibitory neurotransmittersa. hyperpolarize postsynaptic membranes.b. hyperpolarize presynaptic mem...

A: The chemical messengers that transmit a message across the synapse from a nerve cell called neurotra...

Q: Identify the cranial nerves by writing the name in the blank.

A: The cranial nerve consists of twelve nerves in various areas of the body that play a significant rol...

Q: Distinguish between the central and peripheral nervous systems invertebrates.

A: The various activities (both physiological and physical) occurring in the complex body of vertebrate...

Q: The following are compartments in the eye. In which oneis vitreous humor found?a. anterior chamberb....

A: Vitreous humour refers to the colourless fluid and fills up the empty space between the lens and the...

Q: The most significant autonomic control center within the CNS isa. the cerebral cortex.b. the limbic ...

A: Autonomic control depend on visceral reflexes made of efferent and afferent branches. The homeostati...

Q: Describe the structures that are common to mostvertebrae.

A: Answer: The axial skeleton includes the vertebral column. At the time of development of vertebral co...

Q: What is the non-endocrine function of the pancreas and the connection between the exocrine enzymes a...

A: The pancreas is an organ that is involved in the secretion of both endocrine and exocrine hormones. ...

Q: hat type of stent would you not use in case of a risk of aneurysma? pil & grafted stent Grafted-sten...

A: The localized widening of a artery is normally called as aneurysm. The aorta is the largest artery a...

Q: Explain how blood pressure is regulated.

A: Blood is fluid in body that transports oxygen and necessary nutrients to the cells and also carries ...

Q: The first type of bone to form during fracture repair is ?

A: A typical long bone consists of the epiphysis, metaphysis and diaphysis. The epiphysis part has a sp...

Q: List and discuss the three zones along the length of a hair.

A: Hair is one of the important features of mammals. It is a filament made of keratin protein. It protr...

Q: Define all-or-none response as it relates to impulse conduction.

A: A nerve impulse is defined as the electrical signal that moves from the dendrites to the axons, gene...

Q: Select the letter of the choice that best completes the statement. The male hormone is a. progestero...

A: Hormone is the chemical messenger synthesized by endocrine glands and is responsible for performing ...

Q: A high fever can prevent neural tube closure. If a woman had ahigh fever approximately 35–45 days af...

A: The health of the embryo depends largely on the health of the mother. Any problem with the health of...

Q: On Figure 1, what is occurring at the positions C indicated by black arrows?

A: Answer: There is the formation of 'Replication fork' at position C in the given diagram. 

Q: What are the products of the hydrolysis of the substrate? (Digestive System)

A: When food is ingested through the mouth both physical and chemical digestion takes place in the mout...

Q: Read each statement carefully and determine if it is true or false. Correct any false statement. T F...

A: Introduction: The group of organs that permits an individual to eat and utilize the ingested food to...

Q: Cyst formation causes a catastrophic loss of function in polycystic kidney disease. Genetic research...

A: Polycystic kidney disease (PKD) is an inherited kidney disorder. It causes fluid-filled cysts to for...

Q: Distinguish between cranial nerves and spinal nerves.

A: Peripheral nervous system contains cranial and spinal nerves. It helps the spinal cord and the brain...

Q: After having salt food a man always feels thirsty. What blood parameter change can it be connected w...

A: The human circulatory system is one of the major eleven organ systems in the body and  is primarily ...

Q: Acetylcholinesterase: 1. OProduces acetylcholine. 2. Ols the acetylcholine receptor in muscle tissue...

A: Nerves communicate with one another and with muscle cells by using neurotransmitters. These are smal...

Q: List several functions of the cerebellum.

A: Introduction: The cerebellum (little brain) is the largest portion of the hindbrain and is situated ...

Q: Compare the muscles used (if any) in a resting expirationwith those used in a forced expiration.

A: The human body requires sufficient amounts of oxygen to produce energy needed for execution of vario...

Q: Which type of bone tissue, compact bone or spongy bone, significantly degenerates first in osteoporo...

A: A bone is a rigid tissue that constitutes part of the vertebrate skeleton in animals. Bones protect ...

Q: Describe the arrangement and structure of the three coveringsthat surround axons in ANS nerves.

A: The autonomic nervous system is a control system that acts largely unconsciously and regulates bodil...

Q: Describe the attachments of a spinal nerve to the spinal cord.

A: A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spi...

Q: Use a flowchart to show the sequence of events from the time ACh is released from a  nerve ending to...

A: Introduction: The various types of body movements occur as the skeletal muscle contract. The stimulu...

Q: where is the cranium

A: Axial endoskeleton is located on the medium axis of the body. It has 80 bones. It includes the skull...

Q: How might you distinguish the bones comprising the os coxae in an articulated skeleton? Use each of ...

A: Ox coxae is the hip or pelvic bone. It is a large, flattened, and irregular bone. It has three parts...

Q: Q1)Explain hydrocephalus along pathophysiological mechanism implied in the cerebrospinal fluid produ...

A: Cerebrospinal fluid is the clear, colorless and transparent fluid that circulate through ventricle o...