The separation of soil into distinct layers is called "horizonation ," which is preset in Option A, as this is the process where each layer represents a different stage of soil development with unique properties.
Horizonation is significant as it explains the separation of soil into distinct layers and provides information about the soil's history, development, and fertility with unique characteristics, such as color, texture, and density, while the top soil is the most fertile. While the middle and substratum layers provide information about the soil's foundation and are important for understanding the soil's history and composition,
Hence, the separation of soil into distinct layers is called "horizonation ," which is preset in Option A, as this is the process where each layer represents a different stage of soil development with unique properties.
Learn more about the horizonation here.
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Clock
Water
Fish
Paper
Glass
Aluminum
Wooden Ruler
Sand
Clouds
Corpse
Snail
Steak
Pork Chops
Salad
Bread
Plant
Hair
Finger Nails
Pipe
Cotton Fabric
Wool
Gold
Plastic
Grapes
Air
Options:
Option 1: Biotic factors
Option 2: Abiotic factors
Option 3: Mixed (both biotic and abiotic factors)
Option 4: None of the above
Answer:
Option 3 is the correct answer
Biotic and abiotic factors in ecosystems
In ecosystems, biotic factors are the living components, while abiotic factors are the non-living components. Sorting the given items:
The biotic factors involve living organisms like whales, fish, snails, and plants, while the abiotic factors include non-living things such as clocks, water, paper, and metals.
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B. Cytotoxic T cells bind to infected body cells and destroy them
C. Helper T cells activate cytotoxic T cells
D. A macrophage consumes a virus and displays antigens on its surface and signals helper T cells to divide.
Homo sapien
Homo
sapien
Answer: Homo sapien is a scientific species designation.
Homo sapien is a scientific designation for modern human species. The name to Homo sapien was given by the father of modern biological classification, Carolus Linnaeus in 1758. Homo is the genus to which human belongs and sapien means the only surviving species of the genus Homo.
In scientific nomenclature, a species is designated by a two-part name, which includes the genus and species name. 'Homo sapien' is the correct answer.
In scientific nomenclature, a species is uniquely designated by a two-part name: the genus name and the species name. Within the options provided, Homo sapien is the correct scientific species designation. 'Homo' is the genus, which includes humans and our closest extinct relatives, and 'sapien' denotes our specific species within the genus Homo. Thus, a combination of both terms - Homo sapien - correctly designates the human species.
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