An organ is a group of tissues working together to perform specific functions. An example of an organ is the heart.
Explanation:
These are 5 inverted cut bottles with different soils:
(Gravel, Sand, Loam, Clay, and Peat)
- The piece of cloth is tied at the mouth of the bottle to let out water at the same rate as the piece of cotton wool in the previous diagram.
- Soil that is very porous holds very little water and therefore allows too much water to pass through it.
- From the above, gravel has very large particles,it allows too much water to pass through it meaning it holds little water.
- Peat has more fine particles than Clay Soil, hence holds more water than Clay. It therefore allows very little water to pass through it.
Answer:
Renin is secreted from juxtaglomerular kidney cells, which sense changes in renal perfusion pressure, via stretch receptors in the vascular walls. The juxtaglomerular cells are also stimulated to release renin by signaling from the macula densa.
Explanation:
Answer:
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Explanation:
Continental drift was a theory that explained how continents shift position on Earth's surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.
Metamorphic rocks are rocks which have been changed by heat an pressure. The deeper you go within the earth, the more heat and pressure there is, which is why metamorphic rocks form there.
