Answer:
D. is not very significant because it gives us little insight into human behavior.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
As a scientific concept, race is not very significant because it gives us little insight into human behavior.
This ultimately implies that, race is a scientific concept that holds no significant or absolute value since the nineteenth century.
Hence, the difference between humans shouldn't be described based on race according to the United Nations Educational, Scientific and Cultural Organization (UNESCO).
The phase is called cytokinesis.
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Answer:
The "bog freshwater" ecosystem is least productive.
Explanation:
The bog freshwater ecosystem is least productive because of the stability or we can say stagnant type. This type of ecosystem comprise of the evergreen shrubs, and trees and also a floor which will be covered with a thick carpet of the sphagnum moss. The animals like carnivore species will be found. The animal population will be very less. It have, red deer, dragonflies and birds such as grouse and plover will be there. The depth of this type of freshwater is about 6-10 feet it can extend up to 16 feet.
Weathering: Weathering occurs in situ (on site, with little or no movement), and should not be confused with erosion, which involves the transport of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Weathering processes are divided into physical and chemical weathering.
erosion: Erosion happens when rocks and sediments are picked up and moved to another place by ice, water, wind or gravity. Mechanical weathering physically breaks up rock. One example is called frost action or frost shattering. ... The sediment is dropped, or deposited, in landforms.
deposition: Deposition is the processes where material being transported by a river is deposited. Deposition occurs when a river loses energy. This can be when a river enters a shallow area (this coud be when it floods and comes into contact with the flood plain) or towards its mouth where it meets another body of water.
