Population dynamics / population ecology One divides factors that affect populations into density-independent and density-dependent factors. Density-dependent is a factor when related to the number of individuals in a population: Intraspecific competition: Intra-competitive competition for food, reproductive partners, and habitat Specific predators: predators that are prey-prey in a predator-prey relationship.
What does species transformation mean? Art transformation, also known as anagenesis (Greek: ana = upwards; genesis = genesis), is the phenotypic and genotypic alteration of a species without the formation of a new species. The existing species continues to develop. Species conversion is particularly likely in those environments that provide relatively stable conditions for a long time but at the same time have light, transforming selection pressure in a particular direction.
Function, Effects and Synthesis Adrenaline, also known as epinephrine, is used by the adrenal cortex as a stress hormone, especially in mental as well as physical stress situations. The evolutionary purpose of the hormone lies in the physical adaptation to an extraordinary situation, which requires either flight or fight (Fight or Flight).
Definition: The archaic describes an early part of the Earth's early season, the so-called Precambrian. It began about four billion years ago and is divided by scientists into four phases, namely those of the Eoarchic, the Paleo-Archaic, the Meso-Archeic and the Neo-Archeic.
Definition: Allergens are foreign proteins that trigger an immune reaction. This includes allergens to the antigens. The immune system recognizes the antigens and subsequently forms antibodies to fight the supposed, harmful foreign substances. In most cases, allergens are safe for the body.
Atomic mass, symbol and atomic number Actinium is a natural element with the elementary symbol Ac and atomic number 89. In the periodic table it belongs to the actinoids with an atomic mass of 227.027 u. The chemical element discovered by André-Louis Debierne in 1899 is radioactive and is in a solid state of aggregation at room temperature.
PROFILE: Name: Amethyst Other names: / Mineral class: Oxide Chemical formula: SiO 2 (silicon dioxide) Chemical elements: silicon, oxygen Similar minerals: ametrine Color: violet, purple Luster: glossy to rich in glitter Crystal structure: trigonal Mass density: 2.65 Magnetism: non-magnetic Mohs hardness: 7 Line color: white Transparency: transparent Use: Gemstone General to the Amethyst: The Amethyst describes a crystal quartz counted to the oxides, which stands out by its unmistakable violet coloring and therefore as the most popular stone among the quartz.
Character Name: American Staffordshire Alternate Names: "Amstaff" Original Origin: USA FCI Group: Terrier Size (up to 48cm) Height (): up to 45cm Weight (): 30 - 40kg Weight (): 26 - 36kg Life Expectancy: 8 - 14 years old Diet: Carnivore Sexual maturity: Litter size: 5 - 6 Coat color: white, black, gray and brown Skin type: firm and dense Coat length: short Character / Essence: intelligent, attentive, loyal Attitude: requires daily intense spout American Staffordshire - Introduction information The American Staffordshire Terrier is descended from the Bull Terrier, which in the middle of the 19th
Characteristics Name: Basil Latin name: Ocimum basilicum Other names: KÃ¶nigskraut Plant family: Labiatae Number of species: approx. 60 Habitat: originally Asia, today worldwide Plant location: rich in light, warm Leaves: greenish, spiky Fruit:? Flower color: white, pink Flowering period: June - October Height: 15 - 60cm Age: Annual plant; in good conditions for longer use: Gewürzpflanze Characteristics: aromatic Plant information: Basil Basil (Ocimum basilicum), also called "Basil herb" or "cabbage herb", is one of about 60 species of the eponymous genus basil, which belongs to the family Lippetal.
Australopithecus - ancestor of man? The Australopithecines are an extinct genus of hominids. The name derives from the location (South Africa) of the first fossil of this genus (Latin australis for "south" and Greek pithekos = "monkey"). The fossil, known as the Taung Kid, was discovered in 1924 in a quarry near the South African city of Taung.
Characteristics Name: Banana Latin name: Musa Number of species: approx. 100 species Family: Banana crops Production area: worldwide in the tropics. Distribution: probably West Africa Harvest time: all year Growth height: 2 - 8m Age:? Calories: approx. 90kcal per 100g Color of fruit: pale yellow Weight: 100 - 350g Size: 10 - 50cm long bananas Possible vitamins included: Vitamin A, B1, B2, B3, B5, C Minerals contained: calcium, iron, magnesium, potassium Taste: Interesting facts about the banana The plant genus banana (Musa) includes almost 100 species, of which Musa x paradisiaca is world famous: The German name "dessert banana" for one of the most important varieties of this species clearly indicates the importance of this fruit as a floury-sweet treat ,
What is meant by the atomic radius? Definition and Explanation ... As atomic radius, the distance between atomic nucleus and electron cloud can be defined quite generally. All values for the atomic radius can therefore at best be approximate values, because the distance between the nucleus and the outermost electron in the electron shell is practically barely measurable.
Selection factors Selection factors are those environmental conditions / factors that affect the individuals and thus their fitness. A distinction is made between abiotic (inanimate) and biotic (living) selection factors. The selection factors are crucial for the direction of evolution.
What is biodiesel? Definition, history and production: Biodiesel describes a fuel made entirely from oil plants. In Europe, it is obtained in particular from sunflower or rapeseed (see picture) with the addition of alcohols. Biodiesel produced from vegetable oil is also known as FAME, the short form for Fatty Acid Methyl Esther.
Characteristics: Name: Brown coal Other names: Turff Mineral class: Elements Chemical formula: C Chemical elements: Carbon Similar minerals: charcoal, hard coal Color: dark brown, black Luster: matt Crystal structure: / bulk density: 1.3 Magnetism: non-magnetic Mohs hardness: 2, 5 Line color: black Transparency: opaque Use: fuel General information on lignite: Lignite describes a sedimentary rock that has a loose texture and a dark brown to almost black color.
Characteristics Name: Bâtlauch Latin name: Allium ursinum further names: garlic spinach, witch bulb, forest garlic Plant family: bulbous plant Number of species: / Range: Europe Plant location: nutrient-rich soil Blotters: long, tapered Fruit:? Flower color: white Flowering time: April - May Height: 10 - 40cm Age: perennial Use: Plant and spice Properties: Diuretic, perspiration, antibiotic Plant information: Garlic The garlic or Allium ursinum belongs to the family of bulbous plants and is with chives, garlic and the onion closely related.
Atomic mass, symbol and atomic number Cer is a natural element with the elementary symbol Ce and the atomic number 58. In the periodic table it belongs to the Lanthanoids with an atomic mass of 140.116 u. The chemical element discovered by Berzelius and W. von Hisinger in 1803 is not radioactive and is in a solid state at room temperature.
Character Title: Australian Shepherd Alternative Names: "Aussie" Original Origin: USA FCI Group: Sheepdogs and Cattle Dogs Size (up to 60cm) Height (up to 54cm) Weight: up to 28kg Weight: up to 22kg Life expectancy : 12 - 15 years Nutrition: Carnivore Sexual maturity: Litter size: 4 - 7 Coat color: numerous color combinations possible Coat type: soft Coat length: medium to long Character / Essence: intelligent, curious, Attitude: cognitive and physical support needed Australian Shepherd - introduction information The name of the Australian Sheperd deceives about its real origin, because this German shepherd found its origin in America.
What are CO2 emissions? Definition and explanation: CO 2 emissions refer to greenhouse gases produced by the combustion of various carbonaceous materials such as coal, diesel and gasoline, natural gas, wood or LPG. As a result of these processes, high levels of CO 2 (carbon dioxide) are emitted, which accumulate in the earth's atmosphere in ever-increasing concentrations.