Category Other

Evolution factor Gendrift
Other

Evolution factor Gendrift

Gendrift Gendrift is the random change in the genotype of a specific allele within a population. Especially in small populations, gene drift is important because alleles can disappear from the gene pool of the population relatively quickly. But the exact opposite is also possible, namely that certain genes suddenly appear extremely frequently in a population, for example after natural disasters, when only a few individuals have survived and many of them carry a previously rare allele in itself.

Read More

Other

The fire bug - Wanted poster

Characteristics Name: Fire bug Latin name: Pyrrhocoridae Class: Insects Size: 0.8 - 2.0cm Weight:? Age: 8 - 14 months Appearance: black-red shell Nutrition: predominantly plant juices Distribution: worldwide Sleep-wake-up-rhythm: diurnal Habitat: immediate proximity to trees and shrubs Natural enemies: no sexual maturity:?
Read More
Other

The yew - conifer

Characteristics Name: Yew Latin name: Taxus Number of species: approx. 80 Eibs Distribution: Central and Eastern Europe, North America Fruits: small bright red berries (not edible!) Flowering period: May Height: up to 15 meters Age: 3000-4000 years possible Properties of the bark:? Characteristics of the wood:?
Read More
Other

The Ziesel - Wanted poster

Characteristics Name: Ziesel Other names: / Latin Name: Spermophilus Class: Mammals Size: up to 40cm Weight: up to 1kg Age: 5 - 10 years Looks: brown-gray coat, white peritoneum Sex dimorphism: No Nutrition type: mainly herbivores (herbivor) Food: roots, leaves, seeds, insects Origin: unknown Sleep / wakeful rhythmus: diurnal Habit: Semi-desert, Steppe, Mountains natural enemies: Fox, Habicht Sexual maturity: already in the first year of life mating season: March - April gestation period : approx.
Read More
Other

The earth

Introduction to Planet Earth Earth is the third planet in the solar system and the only celestial body on which life could be detected. As the fifth largest planet, the earth orbits in 365 days and six hours the sun on an elliptical track. One day lasts 23 hours, 56 minutes and 4 seconds.
Read More
Other

The garden spider - profile

Characteristics Name: Garden Spider Other names: Cross Spider Latin name: Araneus diadematus Class: Insects Size: 1 - 2 cm Weight:? Age: up to 2 years Appearance: Cruciform pattern on the abdomen Sex dimorphism: Yes Type of nutrition: Insectivore Food: Flying insects Origin: unknown Sleep / wake cycle: diurnal Habit: Gardens, hedges, forests, margins, Meadows natural enemies: birds Sexual maturity:?
Read More
Other

Human biology

Overview From the nose to the bladder ... Human biology (Latin humanus = human) is the branch of biology that deals with the biology of man and the adjacent sciences. Therefore, there are many overlaps, both with other biological branches such as anatomy (human construction), genetics (inheritance) and physiology (bodily functions), as well as with the two natural sciences of chemistry and physics.
Read More
Other

The Goldammer - Wanted poster

Characteristics Name: Goldammer Other names: Ammeritz, Emmerling, Hämmerling, Gelbling Latin name: Emberiza citrinella Class: birds Size: 15 - 17cm Weight: 20 - 30g Age: 4 - 8 years Appearance: yellow-brown plumage Sexual dimorphism: Yes Diet type: adult Birds are predominantly seed-eaters (granivor) Food: Seeds Origin: Europe Sleep-wake cycle: diurnal Habitat: open landscapes with hedges and trees Natural enemies: fox, birds of prey, martens, raven, cat, weasels Sexual maturity: around the age of two mating season: April - August breeding season: 12 - 14 days clutch size: 3 - 5 eggs social behavior: flock of birds threatened with extinction: no You can find further profiles of animals in the Encyclopaedia of Animals.
Read More
Other

The grasshopper - Wanted poster

Characteristics Name: Grasshopper Latin name: Orthoptera Class: Insects Size: 2 - 6cm Weight:? Age: 30 - 90 days Appearance: green tank Sex dimorphism: yes Nutrition type: omnivorous Food: preferably plant material Distribution: worldwide Sleep / wake cycle: diurnal Habitat: non-specific Natural enemies: snakes, spiders, frogs, hedgehogs, birds Sexual maturity: approximately
Read More
Other

The cross spider - Wanted poster

Characteristics Name: Cross Spider Other Names: Garden Spider Latin Name: Araneus diadematus Class: Arachnids Size: 1.5 - 2cm Weight:? Age: up to three years Appearance: yellowish, light brown, black or reddish Sex dimorphism: yes Nutrition type: insectivore (insectivorous) Food: fly, bee, wasp, bumblebee, mayfly, butterfly Distribution: Europe Original Origin: Central Europe Sleep / wake cycle: diurnal Habitat: nonspecific natural enemies: insectivorous birds Sexual maturity: at the age of two Mating season: August - September Oviposition: up to 100 eggs Social behavior: loner Endangered species: no Further information on animals can be found in the Encyclopaedia of Animals.
Read More
Other

The coral - Wanted poster

Character Name: Coral Latin Name: / Class: Cnidarians Size: / Weight: / Age: over 4000 years Appearance: depends on the coral species Sex Dimorphism: No Nutrition Type: Plankton Filter (planktivor) Nutrition: plankton Distribution: worldwide near the equator Habitat: Sea natural enemies : Starfish Sexual maturity: / Mating season: all year Endangered species: Yes You can find further profiles of animals in the Encyclopaedia of Animals.
Read More
Other

The ghostwalker - Wanted poster

Characteristics Name: Spooky Other names: Phasmids Latin name: Phasmatodea Class: Insects Size: 1.5 - 50 cm Weight:? Age: depending on the species up to 4 years Appearance: species-dependent Sex Dimorphism: yes Nutrition Type: herbivore Food: leaves and plant material Distribution: Africa, Australia, Asia, Europe, North America, South America Original Origin: unknown Sleep / wake cycle: nocturnal Habitat: vegetation-rich forests Natural enemies: various species of birds Sexual maturity: dependent on species Matching time: dependent on species and social status Social behavior: loner Endangered species: no Further information about animals can be found in the Encyclopaedia of Animals.
Read More
Other

The dragonfly - Wanted poster

Characteristics Name: Dragonfly Other names: Mermaid Latin name: Odonata Class: Insects Size: 2 - 20cm (wingspan) Weight:? Age: approx. 12 months Appearance: different Color varieties possible Sex Dimorphism: No Nutrition Type: Insectivore (insektivor) Food: Mosquito larvae Distribution: worldwide Original source: unknown Sleep-wake-up-rhythm: diurnal Habitat: near freshwater sources (lake, river, pond etc.)
Read More
Other

The food chain

What is a food chain? Food chains represent the direct and indirect connection of food relations in a –¶cosystem. The individual organisms are divided into the three groups of producers, consumers and destroyers in terms of their trophic level in the material cycle. Within this must be differentiated more exactly, for example between consumers I, II and III order.
Read More
Other

The larch - conifer

Characteristics Name: Larch Latin name: Larix Number of species: approx. 10 Habitat: Asia, Europe, North America Fruits: light brown cones (see picture right) Flowering period: March - May Height: 10 - 40m Age: up to 500 years Properties of the bark : greyish brown, scaly bark Characteristics of the wood: hard and stable Locations of the tree: loamy soil, predominantly cool climate Leaf: ca.
Read More
Other

The recapitulation theory by Ernst Haeckel

Ernst Haeckel (born February 16, 1834, † August 9, 1919) The recapitulation theory, also known under the terms biogenetic principle or Biogenetic Basic Law, is a theory established by Ernst Haeckel, the relationship between ontogenesis and phylogeny. The biologist published his conjectures in 1866 in 'General Morphology.
Read More
Other

The jellyfish - Wanted poster

Characteristics Name: Jellyfish Other names: Medusa Latin name: Cnidaria Class: u.a. Dice jellyfish and umbrella jellyfish Size: up to 4m Weight: 10g - 150kg Age: up to 10,000 years Appearance: transparent, different colors possible (eg white, red, yellow) Sex dimorphism: No Food: algae, plankton, fish, crabs Distribution: worldwide original Origin: unknown Sleep / wakeful rhythm: nocturnal Habitat: Oceans Natural enemies: dolphins, fish, turtles, jellyfish Sexual maturity: after 1 - 10 weeks Pairing time: throughout the year Critically endangered: No You can find further profiles of animals in the Encyclopaedia.
Read More
Other

The cat - Wanted poster

Characteristics Name: Domestic cat Latin name: Felis silvestris catus Class: Mammals Size: up to 50cm Weight: 2 - 8kg Life expectancy: 10 - 16 years Maximum speed: 50 km / h Appearance: brown, black, white, mackerel, red Sex dimorphism: No Nutrition type: Carnivore Food: Insects, Rodents, Small Birds Distribution: worldwide Original Origin: East Africa Sleep-wake-up-rhythm: dusk-active Habitat: no specific habitat, very adaptable Natural enemies: occasionally Foxes and larger birds of prey Sexual maturity: ca.
Read More
Other

The chestnut - deciduous tree

Characteristics Name: Chestnut Latin name: Castanea Number of species: approx. 20 chestnut species Distribution: North America, Europe, Asia Fruits: spherical, prickly (diameter about 5cm) Capsule fruit, when bursting red-brown chestnut Flowering period: May-June Height: 20- 25 m Age: up to 200 years Properties of the bark:?
Read More
Other

The Mendelian rules

Who was Gregor Mendel? When the Augustinian monk Gregor Mendel (1822-1884) experimented with peas in Brno's monastery garden in the 1860s, he did not suspect the importance of his results. The Mendelian rules all go back to Gregor Mendel and describe the regularities in simple hereditary traits.
Read More
Other

The Seal - Wanted Poster

Characteristics Name: Robbe Other names: Flossenfüßer Latin name: Pinnipedia Class: Mammals Size: 1 - 6m Weight: up to 3800kg Age: 25 - 40 years Appearance: greyish skin Sex dimorphism: yes Nutrition type: carnivore Food: fish, crayfish, Penguin spreading: Arctic, Antarctic origin: unknown sleep-wake-up rhythm: diurnal habitat: coastal areas natural enemies: polar bear, shark, whale sexual maturity: ca.
Read More