To reference a VHDL library or package file in your VHDL file, do the following: 1  To reference a package file, include a use statement. 2  To reference a library file, include a use and a library statement.
Animal and plant adaptations and behaviours. Adaptations help organisms survive in their ecological niche or habitat; adaptations can be anatomical, behavioural or physiological. Anatomical adaptations are physical features such as an animals shape. Behavioural adaptations can be inherited or learnt and include tool use, language and swarming behaviour. Physiological adaptations include the ability to make venom; but also more general functions such as temperature regulation.
Updated May 19, 2017. An adaptation is a physical or behavioral characteristic that has developed to allow an organism to better survive in its environment. Adaptations are the result of evolution and may occur when a gene mutates, or changes by accident. That mutation causes the organism to better survive and reproduce, and it passes on that trait to its offspring.