Classification Exam Questions

pangolins and armadillos share similar features, such as both being mammals,/ keratin based scales/ that offer armour which is normally a feature of reptiles, as well as having similarities behaviourally, as they both will curl into a ball/ when they feel threatened. But they do have some differences, such as an armadillos armour, being in bands that cover large parts of the body/, compared to a pangolins many scutes/, and pangolins having external ears and teeth, which armadillos lack./

scales/

leathery, soft shelled eggs/

cold blooded/

ear holes/

variation in animals leads to evolution through natural selection,/ as one particular individual will develop a mutation which will increase it's chances of survival/ and reproduction,/ leading to it having more offspring than other individuals. This will result in the offspring likely having the same genetic/ mutation, allowing for the genes to be passed on further as they reproduce./ Over time the majority of the population will inherit this mutation and it will become a recognised evolution.

Animal Biology:

animals can adapt to different environments over time.

discuss the principles of natural selection in animals.

-overpopulation = competition for limited resources

-individuals born with advantageous genes

-advantageous individuals more likely to survive and reproduce

-individuals offspring inherit advantageous alleles

-those offspring reproduce and pass the alleles on

-over time the advantageous characteristic becomes a characteristic of the population of the species

living organisms are classified to understand their evolutionary relationships

describe taxonomic classification