Adaptations Flashcards
What does the DNA found within an organism’s cell make up and what is formed?
The DNA found within an organism’s cells makes up its genetic structure and form structures called chromosomes.
What are chromosomes?
Chromosomes contain genes that code for all of the
characteristics of an organism.
What do chromosomes do?
Each organism has different genes that code for characteristics to help it survive in its environment.
What are adaptations?
A characteristic or feature of an organism that will assist the organism to survive in its particular environment.
What does the adaptation of an organism do?
Organisms have general adaptations that allow them to
survive and function.
Organisms of the same taxonomic class will share general adaptations, regardless of their environment/habitat.
Organisms also have specific adaptations that have evolved to make an organism particularly suited to its
environment/habitat.
Why do organisms adapt?
To compete for resources including food and mates.
To acquire a stable and adequate source of resources which increases the chance of survival and reproduction.
What are the 3 types of adaptations?
Behavioural, Structural & Physiological
What is Behavioural Adaptation?
Behaviours exhibited by an organism that increases its chance of survival and reproduction. Eg. migrating, huddling, courtship, hibernation, nocturnalism, estivation etc.
What are Structural Adaptations?
Physical characteristics that an organism possesses which
increase its chance of survival and reproduction. Eg. Fur, Stripes, Streamlined shape, plants; thick bark, flat leaves etc.
What are Physiological Adaptations?
Metabolic processes that occur within (internal) the organism to increase its chance of survival and reproduction. Eg. venom, gas, xerophytes; stomata etc.
