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Biology
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What is Evolution?

The Theory of Evolution states that organisms change (evolve) over a long time (from simple life forms) due to natural selection.

Natural Selecti...

DY
Answered by Dominic Y. Biology tutor
4447 Views

What is the structure of DNA?

DNA is a double helix. Consisting of two strands, which are made up of bases A T C and G

Complementary base pairing occ...

TD
Answered by Thomas D. Biology tutor
3808 Views

What is the role of ATP in muscle contraction?

ATP is responsible for cocking (pulling back) the myosin head, ready for another cycle. When it binds to the myosin head, it causes the cross bridge between actin and ...

TD
Answered by Thomas D. Biology tutor
67036 Views

How is the lung adapted for gaseous exchange?

The lung consists of one cell thick bronchioles, which feed into round structures called alveoli, which are round in shape and also one cell thick. The bronchioles and...

TD
Answered by Thomas D. Biology tutor
11281 Views

Is respiration the same thing as breathing?

No, they are not the same (although they do both involve the respiratory system!).

The key differences:Breathing is the process of moving air in and out of the lungs - like when you take a bre...

RL
Answered by Rhiannon L. Biology tutor
29426 Views

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