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Biology
GCSE

Which of the basic life processes is described here? The ability of multicellular organisms to regulate their internal environment so that it stays optimum for cellular survival.

Homeostasis

Answered by Alice M. Biology tutor
2408 Views

Explain the diffusion process of gas exchange in the lung during respiration

Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs. Blood travelling to the lungs is deoxygenated and instead of oxygen, carbon dioxide is bound to the red blood cells....

Answered by Calum R. Biology tutor
11436 Views

What are the stages of mitosis?

Prophase - everything in the cell duplicates, and the chromosomes condense Metaphase - chromosomes align in the middle of the cell and spindle fibres attach to the centromere (part holding the two sister ...

Answered by Anya M. Biology tutor
2173 Views

What is the role of the myelin sheath in the transmission of electric impulses in the nervous system?

It is important to note that the IB syllabus expects the students to understand that "The myelination of nerve fibres allows for saltatory conduction." What this essentially mea...

Answered by Clara S. Biology tutor
9269 Views

What are Mendel's two laws of inheritance?

   Mendel's two laws of inheritance are: the law of segregation and the law of independent assortment. 

Answered by Sara P. Biology tutor
4223 Views

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