36 results found

Search Results for: danger

Danger

Danger 1. Authority; jurisdiction; control. In dangerhad he . . . The young girls. (Chaucer) 2. Power to harm; subjection or... Read More

Safety

safety 1. The condition or state of being safe; freedom from danger or hazard; exemption from hurt, injury, or loss. Up led... Read More

Mutualism

Mutualism Definition What is mutualism? In biology and ecology, a mutualism is a form of symbiosis that is characterized by... Read More

Thalassophobia

Among many psychological and psychiatric disorders, one is the fear of the ocean and the fear of deep water, which in... Read More

Plant sets off “SOS” for plant defense when it gets hurt

When herbivore, such as an insect, nibbles a plant leaf, the plant sets off an "SOS" or distress signal as one of the... Read More

Fish

While insects and similar types of organisms strived to occupy land, the sea was teeming with life aiming to secure their... Read More

Insects

To learn more about arthropods, look at the previous tutorial. The Class Insecta of the Arthropoda Phylum is by far the... Read More

Population Regulation in an Ecosystem

Darwin focused some of this work in regards to the population size of a species, and what factors may affect them. He... Read More

Arthropods

There are over two million species of arthropods, who initially arrived on Earth in the middle of the Cambrian period.... Read More

Naked virus

Viruses are infectious entities with size ranges between 20 to 400 nanometers. The mammoth-sized virus would be about the... Read More

Primitive Animals

Incorrect taxonomic classifications deemed organisms to be either animals or plants, in the Plantae or Animalia kingdoms... Read More

Sphenodon guntheri

Definition The tuatara species of the genus Sphenodon that inhabits one small island of New Zealand, i.e. Brothers... Read More

Synergistic effect

Synergistic Effects Definition In biology, synergistic effects are the effects when chemical substances or biological... Read More

The Gene Pool and Population Genetics

Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial is about adaptive radiation. Adaptive radiation is... Read More

Adrenaline

A catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve... Read More

Thanatosis – Faking Death To Escape Doom

Thanatosis -- pretending to be dead -- is one of the best strategies that certain wild animals came up with in order to... Read More

Microbe

Microbe Definition What is a microbe? How do we define microbes?  Microbes refer to microorganisms that cannot be seen by... Read More

Fight or flight reaction

Definition noun The response or reaction of an animal to a situation perceived as a threat to its survival, which involves... Read More

Kelp

The swaying and winding of kelp in the ocean currents has an entrancing, hypnotic quality that would be the envy of the... Read More

Predation

In ecology, predation is a mechanism of population control. Thus, when the number of predators is scarce the number of... Read More

Breed

Breed 1. A race or variety of men or other animals (or of plants), perpetuating its special or distinctive characteristics... Read More

Bird

Bird 1. Orig, a chicken; the young of a fowl; a young eaglet; a nestling; and hence, a feathered flying animal (see 2). That... Read More

Pain

pain (Science: symptom) An unpleasant sensory and emotional experience associated with actual or potential tissue damage or... Read More

Bears

Bears Definition Bears are mammals belonging to the family Ursidae. They typically have massive bodies, coarse heavy fur,... Read More

Face

Face 1. The exterior form or appearance of anything; that part which presents itself to the view; especially, the front or... Read More

Process

Process Definition What is a process? In biology, a process (plural: processes) means any of the various biological... Read More

Ganglion

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Benign

Benign Definition How to define benign? The meaning of benign in a general sense is "beneficial" and "pleasant". Benign is... Read More

Alloparenting-What Is It?

“Alloparenting—What Is It?” Sonja G. Rosas 13 September 2007 An Introduction To Alloparenting Every gregarious... Read More

Nerve

nerve 1. (Science: anatomy) One of the whitish and elastic bundles of fibres, with the accompanying tissues, which transmit... Read More

Stimulus

We can detect hot or cold environments using our sense of temperature. When the temperature is too hot, sweating... Read More

Flask

Flask 1. A small bottle-shaped vessel for holding fluids; as, a flask of oil or wine. 2. A narrow-necked vessel of metal or... Read More

Ganglia

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Sentinel

sentinel 1. One who watches or guards; specifically, a soldier set to guard an army, camp, or other place, from surprise, to... Read More

Mimicry

Most would say imitation is the greatest form of flattery. In some cases that is quite true. However, imitation or mimicking... Read More

Haemophilia

Definition noun A condition that is characterized by uncontrolled bleeding from the mouth, gums, lips, and tongue,... Read More