"Gas bladders" and lungs are similar organs, although they serve different functions.
Both of them develop from a location in the upper throat i.e. the pharynx and are used to manipulate gases. They both contain a good blood supply.
However, the lung is used for breathing and is often found in land vertebrates, while on the other hand, the gas or swim bladder is used in the regulation of buoyancy and the latter is found in all other bony fishes e.g. perch.
Perch use the swim bladder to control their buoyancy by filling it with oxygen from their gills using a gland, which is known as a gas gland. This expands the bladder, thereby pushing the fish toward the surface of the water.
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Answer:
The moving of water causes erosion, deposition and much more!
Explanation:
Water moving across the earth in streams and rivers pushes along soil and breaks down pieces of rock in a process called erosion. The moving water carries away rock and soil from some areas and deposits them in other areas, creating new landforms or changing the course of a stream or river.
It means hot liquid or semifluid.
One of the reason is : An increased body size and robustness. They have long spatial/temporal range
, they were the first hominin to leave Africa, they have modern human body proportions
, they were the first to have a protruding human nose
and they actively were hunting.
Answer:
C, ribosomes are made in the nucleus
Explanation:
