59 results found

Search Results for: planet

Planet

planet 1. (Science: astronomy) A celestial body which revolves about the sun in an orbit of a moderate degree of... Read More

The Origins of Life

Although Earth was created around 4.5 billion years ago, life began to exist not long after. Due to the huge timescales... Read More

Eclipse

Eclipse 1. (Science: astronomy) An interception or obscuration of the light of the sun, moon, or other luminous body, by the... Read More

Geological Periods

Precambrian Times (Most Ancient) All time before life existed, Earth was still a volatile environment, though the origins... Read More

Origins of Life on Earth

Although Earth was created around 4.5 billion years ago, life began to exist not long after. Due to the huge timescales... Read More

Satellite

satellite 1. An attendant attached to a prince or other powerful person; hence, an obsequious dependent. The satellites of... Read More

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Carrying capacity

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

Epoch

Epoch 1. A fixed point of time, established in history by the occurrence of some grand or remarkable event; a point of time... Read More

Mercury

mercury 1. (Science: astronomy) The first planet in order from the sun. It has no known natural satellites. It is one of the... Read More

Primitive Animals

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

Extraterrestrial

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

Venus

venus 1. The goddess of beauty and love, that is, beauty or love deified. 2. (Science: anatomy) One of the planets, the... Read More

Moon

moon 1. The celestial orb which revolves round the earth; the satellite of the earth; a secondary planet, whose light,... Read More

Revolution

revolution 1. The act of revolving, or turning round on an axis or a center; the motion of a body round a fixed point or... Read More

Sun

sun (Science: botany) See sunn. 1. The luminous orb, the light of which constitutes day, and its absence night; the central... Read More

Why Is The Mary River Turtle Endangered

The Mary River Turtle  (Elusor macrurus) has been named recently as one of the species on the brink of extinction. That is... Read More

Early Mammals on Earth

By the time the dinosaurs were extinct 65 million years ago, the world's landmass had split up into more or less the... Read More

The Water Cycle

The water cycle (sometimes referred to as the hydrological cycle) is the continuous transfer of water from air, sea land and... Read More

Muscles of the Apes – a thwack on human muscle evolution

Summary: A recent finding suggests that apes do have the muscles for bipedalism, vocal communication, and facial... Read More

Ecosystem diversity

Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More

Biotic factor

Biotic Factor Definition Biotic factors (also known as biotic components) are the living component in an ecosystem. The... Read More

Great Oxygenation Event

Definition noun The appearance of dioxygen (O2) in the atmosphere of the earth as a result of biological activity,... Read More

Animal Water Regulation

Homeostatic control, a set environment, and how evolution and natural selection drives a species to adapt to its environment... Read More

Polyploidy

Reviewed by: Mary Anne Clark, Ph.D. Polyploidy Polyploidy is defined as the state of being polyploid, which... Read More

Adaptive Radiation

Reviewed by: Mary Anne Clark, Ph.D. When Charles Darwin was in the Galapagos Islands, one of the first things he... Read More

The Origins of Life

This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the... Read More

The Dinosaurs

Everyone has heard about the dinosaurs. No doubt one of the reasons why is because of their size, another being the fact... Read More

Pollution in Freshwater Ecosystems

As with all ecosystems, the existence and operations of human society inevitably have an effect on the way of life in a... Read More

The Homo Species

Over the long term, it looked like Homo would supersede any ‘similar model’ of animals due to their unique tool using... Read More

The Hominids

Although humans in today's world are the most advanced species on the planet, we previously shared the exact same genetic... 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

Insects

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

Biogeography

Biogeography (Science: study) The study of the distribution of different species of organisms around the planet and the... Read More

Petrified Wood : The World of Fossilized Wood, Cones, Ferns, and Cycads

Petrified Wood : The World of Fossilized Wood, Cones, Ferns, and Cycads ... Read More

Vortex

vortex Origin: L. Vortex, vertex, -icis, fr. Vortere, vertere, to turn. See Vertex. 1. A mass of fluid, especially of a... Read More

Equation

Equation 1. A making equal; equal division; equality; equilibrium. Again the golden day resumed its right, And ruled in just... Read More

Biodiversity in Your Backyard – It’s a Jungle Out There!

Here's a trick question: how many animals do you depend on every day to stay alive? How many plants? And what about other... Read More

No Chokky for Your Kids? – Why You Should Care About Biodiversity

No Chokky for Your Kids? - Why You Should Care About Biodiversity Imagine a world without chocolate. It could happen. It's... Read More

Dung-Eating Koala Moth Named After CSIRO Head in Honour of Biodiversity Efforts

Dung-Eating Koala Moth Named After CSIRO Head in Honour of Biodiversity Efforts The CSIRO's chief executive Dr John Stocker... Read More