Answer:
The total volume of water corresponds to 60% of body weight. This volume is divided into two large compartments, the intracellular and the extracellular. The extracellular compartment is subdivided into plasma and interstitial fluid, with a volume ratio of approximately 1: 3. Regulation of intracellular volume is achieved in part by regulating plasma osmolality through changes in water balance.
Explanation:
Water is distributed in our body in different aqueous compartments, which are separated by cell membranes: intracellular fluid and extracellular fluid, which in turn includes interstitial fluid and plasma. Osmotic forces are the fundamental determinant of the distribution of water in the body, water can freely cross almost all cell membranes, and as a result the body fluids are kept in an osmotic balance, since the osmolality of the intra and extracellular fluid is the same. Intracellular fluid makes up about 40% of body weight: 28-42L of body fluid is within cells. Extracellular fluid constitutes about 20% or about 14 liters in a normal adult, all the fluids outside the cells. Plasma is the non-cellular part of the blood and it continually exchanges substances with the interstitial fluid through pores of the capillary membranes that are permeable to almost all the solutes in the extracellular fluid except for proteins. The distribution of the liquid between the intra and extracellular compartments is determined by the osmotic effect of the smallest solutes (Na, cl ...) that act through the cell membrane, since the cell membrane is very permeable to water and impermeable to ions small, water moves rapidly through the cell membrane, and the extracellular fluid remains isotonic with the extracellular fluid.
Answer: 6
Explanation:
A DNA strand has 3 distinct frame, thus for both strands, it will require 6 strands.
Answer:True
Explanation:
Bipedalism is walking on two legs its is common to human and apes such as gorilla. it differentiate the early hominis that uses primitive with bipedal and recent(humans and some apes) that uses legs.
Bipedalism allows the hominis who lives in the forest adapt to the savannah habitat where walking with two legs is possible and the use of hands for hunting of food. Although the early hominis lived in the forest for years they are able to adapt and thrive well in the savannah when they found themselves there.
Answer:
B. only chemoreceptors, mechanoreceptors, thermoreceptors, and nociceptors
Explanation:
Receptors are chemical structures, that receive and transduce signals that may be integrated into biological systems.
Receptors that can be found in the mouth include: chemoreceptors, mechanoreceptors, thermoreceptors, and nociceptors.
<u>Chemoreceptors</u>
These are receptors that detects chemical stimuli, either molecules or ions dissolved in liquids. An example would be our taste buds in the mouth, because they respond to specific molecules or ions in our ingested food.
<u>Thermoreceptors</u> responds to changes in temperature. These receptors are present in the oral cavity, skin and hypothalamus.
Mechanoreceptors are receptors that respond to distortion of the plasma membrane that occurs due to touch, pressure, vibration, stretch, stress or strain
. They can be found in the mucosae of ginviva (gum), cheek, tongue and soft and hard palate.
<u>Nociceptors</u> are receptor responds to painful stimuli. The purpose of nociceptors is to inform the body of injury, damage or threat of damage to body tissues so that a response may be made. They can be found in the tooth pulp and within dentine cavity.
Answer:
Many human and physical factors affect population distribution and population density across the world. Physical factors that affect population density include water supply, climate, relief (shape of the land), vegetation, soils and availability of natural resources and energy.