Biology

Leucoplast

Leucoplast

Plastids are storage organelles contained in plant cells, including chromoplasts (they carry colored pigments for organisms such as flowers) and chloroplasts (which carry the green pigment found in plant cells). Leucoplast (λευκός leukós “white”, πλαστός plastós “formed, mold.....

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Nekton

Nekton

Nekton or necton, the assemblage of pelagic animals which swim freely, independent of water movement or wind, from the Greek nekton meaning “to swim”. In 1891, the German biologist Ernst Haeckel coined the concept to distinguish between the active swimmers in a body of water and the passive s.....

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Hermit Crab

Hermit Crab

Hermit Crab, any crab of the Paguridae and Coenobitidae families (class Crustacea Decapoda order). These crabs are superfamily Paguroidea anomuran decapod crustaceans who adapted to occupy empty scavenged mollusc shells in order to protect their fragile exoskeletons. There are over 800 species of.....

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Carrying Capacity

Carrying Capacity

Carrying Capacity is the number or quantity of people or things that can be conveyed by a vehicle or container. The carrying capacity of an environment is the maximum population size of a biological species that can be sustained in that specific environment, given the food, habitat, water, and ot.....

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Sea Anemone

Sea Anemone

Sea anemone, any member of Actiniaria (class Anthozoa, phylum Cnidaria) invertebrate order, soft-bodied, mainly flowers-like, sedentary marine animals. The ornately colored sea anemone (uh-NEM-uh-nee) takes its name from the equally flashy terrestrial anemone flower. Sea anemones are classified w.....

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Brassicaceae

Brassicaceae

Brassicaceae (/ˌbræsɪˈkeɪsii/) or Cruciferae (/kruːˈsɪfəri/) the mustard family of flowering plants (order Brassicales), composed of 338 genera and some 3,700 species. This is a genus of flowering plants of medium size and economic value commonly known as the mustards, the crucifers, or .....

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Study of Soil Ecology

Study of Soil Ecology

Soil is a vast reservoir for a wide diversity of organisms. Soil ecology is the study of how soil organisms interact with other organisms and their environment – their influence on and response to numerous soil processes and properties form the basis for delivering essential ecosystem services......

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Spherical Symmetry

Spherical Symmetry

In biology, symmetry is always approximate; it can be seen as a balanced distribution of duplicate body parts or shapes within an organism’s body. But there are types of biological symmetry more generally found in nature; spherical symmetry, which defines an organism that can be separated i.....

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Biradial Symmetry

Biradial Symmetry

Biradial symmetry is observed in species that exhibit both bilateral and radial symmetry with morphological (internal or external) characteristics. It’s distinct from radial symmetry since the organism is separated by two planes but not more than two. It may represent an intermediate stage .....

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Symmetry In Biology

Symmetry In Biology

Biological symmetry refers to the symmetry found in organisms, including plants, animals, fungi, and bacteria. Specifically, symmetry refers to correspondence of body parts, in size, shape, and relative position, on opposite sides of differentiation or distributed around a central point or axis. .....

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Alcohol Dehydrogenase

Alcohol Dehydrogenase

Alcohol dehydrogenases (ADH) are a group of dehydrogenase enzymes that occur in many species and promote the interconversion of alcohols and aldehydes or ketones to NADH by reducing the nicotinamide adenine dinucleotide (NAD+). The prefix ‘de’ means not, and ‘hydro’ refers to a hydrogen a.....

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Marine Biodiversity

Marine Biodiversity

Marine biodiversity includes coastal and marine plant and animal species, their genetic variety, the habitats and ecosystems they form part of, and the ecological processes that support all of these. It is important to protect because today, just as always, humans are dependent on the Earth’.....

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