Answer:
Interdependence is a key concept in ecology. Whilst this can be taught theoretically, some practical fieldwork greatly enhances pupils’ understanding. Almost certainly the fieldwork would entail looking at plant abundance and distribution and, of course, some work with quadrats!
A quadrat is a simple device for marking out a small area. For young children at primary school the quadrat is often a convenient way of focusing a pupil’s attention on a particular small area. At secondary level, pupils should understand how quadrats can be used to sample a larger area. By recording information from a number of quadrats placed within a larger study area, they can obtain a representative sample of the whole area, which may be too big to describe in full.
This article describes how quadrats can be used to help pupils at lower secondary level estimate the relative abundance of plant species. All the information given here refers to frame quadrats. (Point quadrats can be tedious and difficult for pupils to use and are probably best avoided at this level.
The Hepatic portal circulation drains all of the organs of the digestive system. The Hepatic portal circulation system is composed of veins that <span>directs blood from parts of the gastrointestinal tract to the liver. Concretely, they</span> carry blood from the capillaries of the stomach, intestine, spleen, and pancreas to capillaries in the liver.
A clastic rock composed of sand-sized grains derived from the physical weathering of granite and containing a sizable proportion of feldspar is termed as arkose. It is a sedimentary rock that has a composition of at least 25% feldspar. It is a type of sandstone that has a coarse texture and is commonly in gray or pink in color. The most important minerals in arkose are feldspar and quartz. And, it is quartz that is dominant in composition. This rock is formed from weathering of metamorphic or igneous rock that are rich in feldspar. They are to be quickly deposited into cold environments so as to avoid chemical weathering.
Answer:
d.no pollution
Explanation:
it doest create any pollution at all
