Answer asap
explain how the human circulatory system is adapted to:
• supply oxygen to the tissues
• remove waste products from tissues [6 marks]

Haemoglobin supplies the oxygen to tissues and the blood plasma itself removes most of the waste products from the cells.

The blood is a connective tissue that connects each and every part of body by means of circulation. This tissue is derived from the mesoderm and is composed of 45% blood corpuscles and 55% plasma. The red blood corpuscles contain the haemoglobin which is known to supply oxygen to the tissues from the lungs. It also transfers about 7% of the carbon dioxide back to lungs as carbamino haemoglobin.

Blood plasma also washes the cells of the excretory products like ammonia, carbon dioxide etc. These products are transferred to liver or lungs and are metabolized to lesser toxic products and are then filtered off by kidneys to remove through urine.

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explanation:

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d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !