40 results found

Search Results for: solar system

Solar system

solar system The group of celestial bodies, including the earth, orbiting around and gravitationally bound by the sun. It... Read More

System

A system pertains to interdependent or interrelated objects comprising and functioning as a whole. In biology, it may refer... Read More

Light-dependent reaction

Many organisms, such as green plants, convert light energy into chemical energy through the mechanism of photosynthesis. In... 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

Satellite

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

Protuberance

protuberance That which is protuberant swelled or pushed beyond the surrounding or adjacent surface; a swelling or tumour on... Read More

Environment

Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More

Green

Green 1. Having the colour of grass when fresh and growing; resembling that colour of the solar spectrum which is between... 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

Earth

Earth 1. (Science: astronomy) planet that is the third in order from the sun. It is one of the four inner or terrestrial... Read More

Solar energy

solar energy energy transmitted from the sun in the form of electromagnetic... 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

Planet

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

Light-independent reaction

The process of photosynthesis is a biological procedure in which plants produce oxygen and energy (sugar) by using light... Read More

Primary productivity

'''Primary productivity (Botany) - the rate at which biomass is produced by organisms which converts inorganic substrates... 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

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

Terrestrial plant

Definition noun, plural: terrestrial plants Any animal that lives, grows and reproduce in aquatic... Read More

Leaves

Leaves are highly efficient solar energy converters. They capture light energy and through the process of photosynthesis.... Read More

Ultraviolet radiation

Definition noun A form of electromagnetic radiation emitting ultraviolet rays Supplement The electromagnetic radiation is... Read More

Trichome

Definition noun, plural: trichomes (botany) An outgrowth (hair-like or scale-like) from the epidermal cell (microbiology) A... Read More

Sunlight

Definition noun The electromagnetic radiation of the sun that reaches the earth, particularly infrared, visible light, and... Read More

Assimilation

Assimilation Definition What is assimilation? Assimilation in biology is defined as the process in which living organisms... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Ecliptic

Ecliptic 1. (Science: astronomy) a great circle of the celestial sphere, making an angle with the equinoctial of about 23... Read More

Vascular plants

Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More

Screen

screen 1. To provide with a shelter or means of concealment; to separate or cut off from inconvience, injury, or danger; to... Read More

Solstice

solstice 1. A stopping or standing still of the sun. 2. (Science: astronomy) The point in the ecliptic at which the sun is... Read More

Electromagnetic radiation

Definition noun The radiation that consists of associated, interacting electric and magnetic field waves traveling at the... Read More

Tides

tide (Science: marine biology) A situation in which the level of the ocean and associated bodies of water periodically... 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

Acceleration

Acceleration The act of accelerating, or the state of being accelerated; increase of motion or action; as, a falling body... 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

Yellow

yellow being of a bright saffronlike colour; of the colour of gold or brass; having the hue of that part of the rainbow, or... Read More

Water

Water Definition (1) (biochemistry) A chemical substance, with chemical formula H2O, that is a clear, colorless, odorless,... Read More

Energy

Reviewed by: Todd Smith, PhD Definition noun, plural: energies (1) The capacity for work. (2) The ability to do... Read More

photobiology

Photobiology Definition Photobiology, the biology of light, is a subdiscipline in biology. It focuses on the effects of... Read More