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Biology
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Describe the cell cycle

The process of cell division is called the cell cycle. G1 phase - Cell grows in size and cellular contents (e.g. organelles) duplicate so that the new cells will have enough to function. S phase - The ch...

SP
Answered by Samuel P. Biology tutor
3174 Views

What is the difference between diffusion, osmosis and active transport?

Diffusion is the movement of particles, either in gas or solution, from an area of high concentration to an area of low concentration until the concentration in the whole area is equal. This also occurs a...

SP
Answered by Samuel P. Biology tutor
2720 Views

What is the role of succession and how does this maintain ecosystems?

Succession is the term given to describe the changes that take place within an ecosystem. Barren land such as bare rock can be formed by the eruption of a volcano or a glacier retreating. The first stage ...

PV
Answered by Pankti V. Biology tutor
11084 Views

The genetic code is the sequence of bases in DNA, which is found in chromosomes and is made up of double stranded polynucleotides. Explain what is meant by the term “double-stranded polynucleotide” in relation to DNA.

It is known as double-stranded as there are two strands of DNA joined by hydrogen bonds between the bases and polynucleotide refers to the fact that there are many nucleotides joined by phosphodiester bon...

AT
Answered by Abishan T. Biology tutor
2076 Views

explain how the human circulatory system is adapted to remove CO2 from tissues (3)

capillaries have a high surface area to volume ratio to allow fast diffusionCO2 can diffuse from cells to blood plasmathe lungs also contain capillaries allowing CO2 to diffuse into them prior to exhalati...

CE
Answered by Cameron E. Biology tutor
2925 Views

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