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Describe and explain the physiological changes that occur in the body if the core body temperature is at 38 degrees celsius.

38 degrees Celsius is higher than the necessary core body temperature of 37 degrees. This is detected by the hypothalamus to reduce the temperature through a negative feedback system.The changes brought abou...
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Answered by Kd B. • Biology tutor
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What is the difference between eukaryotic and procaryotic cells?

Procaryotic cells lack organelles (e.g. nucleus) and other internal membrane-bound structures (e.g. endoplasmatic reticulum). Most of their genetic material (i.e. DNA) forms an irregularly shaped structure, ...
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Answered by Sarah S. • Biology tutor
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Explain the key steps in mitosis.

Mitosis is the way in which cells divide. Once one cell has undergone DNA replication, it contains 2 sets of chromosomes ( diploid ). Once mitosis has occurred, there will be two identical haploid cells. Ste...
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Answered by Amy G. • Biology tutor
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How can I differentiate prokatyotic and eukaryotic cells?

The main difference between these two cell types is that eukaryotic cells have their DNA collected inside the nucleus, while prokaryotic cells lack nuclei. Instead, they have a circular piece of DNA called t...
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Answered by Omar A. • Biology tutor
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What is the process of natural selection?

Natural selection is able to occur due to variation within a species. Individuals with certain mutations/alleles may be better adapted to their environment than other members of their species, meaning they w...
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Answered by Adela B. • Biology tutor
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