264 results found

Search Results for: space

Fundamentals of Space Biology: Research on Cells, Animals, and Plants in Space (Space Technology Library)

Fundamentals of Space Biology: Research on Cells, Animals, and Plants in Space  ... Read More

Perinuclear space

Definition noun plural: perinuclear spaces per·i·nu·cle·ar space The space or gap between the inner and outer... Read More

Perisinusoidal space

Definition noun The plasma-filled extravascular space in the liver, between a hepatocyte and a liver sinusoid Supplement The... Read More

Capsular space

Capsular space The slitlike space between the visceral and parietal layers of the capsule of the renal corpuscle; it opens... Read More

Space of donders

space of Donders The space between the dorsum of the tongue and the hard palate when the mandible is in rest position... Read More

Kidneys and Regulation of Water and Inorganic Ions

Renal Functions Kidneys remove/add substances from/to the plasma. Regulate water concentration, inorganic ion... Read More

Mitochondrion

Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... Read More

Respiration

Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More

Saline solution

Saline Solution Definition Saline solution is one the most medically-used solution, which contains sodium chloride... Read More

Lacuna

Definition of Lacuna What is lacuna? The word "lacuna" (noun, plural: lacunae) is derived from the Latin word- 'lacus',... Read More

Population Growth and Survivorship

By: Maria Victoria Gonzaga Previously, we learned about biodiversity and endemism. Now, let's look at the... Read More

Effects of Gravity on Sleep

Gravity is a natural phenomenon that affects all things particularly all living creatures from cell to human being. It has... Read More

Antecubital fossa

Antecubital Fossa Definition The antecubital fossa or the cubital fossa is the triangular-shaped hollow depression between... Read More

Carrying capacity

Carrying Capacity Definition What is carrying capacity? In biology and environmental science, the carrying capacity of a... Read More

Density dependent limiting factor

What Is A Density-Dependent Limiting Factor? Density-dependent limiting factors are limiting factors, which, depending on... Read More

Peritoneum

What is the Peritoneum? The term peritoneum refers to the serous membrane that constitutes the biologically active inner... Read More

Hemolysis

The breakdown or catabolism of red blood cells or erythrocytes that result in the expulsion of hemoglobin and other... Read More

Chemiosmosis

Chemiosmosis Definition What is chemiosmosis? In biology, chemiosmosis refers to the process of moving ions (e.g. protons)... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Extraterrestrial

Definition adjective (astronomy) Of, pertaining to, relating to, or occurring beyond the earth's... Read More

RNA-DNA World Hypothesis?

How did life start as we know it? In the scientific community, the "RNA World Hypothesis" has many adherents. Many believed... Read More

Cellular respiration

Cellular Respiration Definition What is cellular respiration in simple terms? Cellular respiration can be defined simply as... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Endocytosis

Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... Read More

Specimen

A specimen is a meticulously selected representative of a group that undergoes rigorous research studies to derive some... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Realized niche

What is a niche? A niche can be defined as the means by which a species or an individual interacts with its environment. In... Read More

Purulent

The term "purulent" signifies the state of formation and release of pus from a site of inflammation. Thick, foul-smelling,... Read More

Nuclear envelope

Definition noun plural: nuclear envelopes nu·cle·ar en·ve·lope, ˈn(j)ukliɚ ˈɛn.və.ləʊp The two layered membrane... Read More

Base-pairing rule

Base-pairing Rules Definition The base-pairing rules are rules that apply during the pairing between one purine and one... Read More

Ion

We have been introduced to ions in varied fields of Science like Physics, Chemistry, and Biology. This article takes you on... Read More

Chorion

Chorion Definition The chorion is a membrane that develops around the developing fertilized egg. It begins to develop... Read More

Areole

Definition noun, plural: areoles (botany) A spot, which may be raised or depressed, on the cactus body where spines, hair,... Read More

Cistern

Definition noun, plural: cisterns (general) A reservoir or tank for storing water, especially a tank for holding rainwater... Read More

Contamination

Contamination Definition Contamination, sometimes interchanged with pollution, is the existence of live things or... Read More

Pouch of douglas

Definition noun Peritoneal space or pouch formed between the rectum and the uterus in the female human body. Supplement In... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Antecubital space

Definition noun (anatomy) The fossa in the anterior of the cubitus, or simply the depression in front of the... Read More