Search over 10,000 free study notes

The plasma membrane is organised into what is referred to as a lipid bilayer, consisting primarily of phospholipids and proteins. Phospholipids contain a hydrophobic (water hating) fatty acid 'tail' and a...

Bacterial resistance to antibiotics is an example of natural selection. In a population of bacteria there may be some individuals that are not affected by the antibiotic. This may be due to random changes...

Meiosis - cell division to form gametes (sex cells), each gamete contains half the number of chromosomes than in a normal cell. Mitosis - division of body cells during normal growth, each cell contains a ...

Species richness is the number of species found in an area- you simply count the number of different species. Species evenness is how evenly spread the population is across the species in an area- if you ...

Chromosomes are thread-like structures that are found in the nucleus of the cell. They contain many genes which are sections of DNA that code for a particular protein. These proteins will give an individu...