What is the study of animals?
Zoology
What makes the study of Zoology important?
It helps us understand animal structure, function, relationships, evolution, ecology, and their impact on humans and the environment.
What do most zoologists do?
Specialize in a particular group of animals or a specific aspect of their biology.
What is the change in the genetic makeup of populations over time called?
Organic Evolution
What two things does Organic Evolution explain?
What do evolutionary processes explain in animals?
Their structure and function.
Which fish species has mouths curved right or left, showing evolutionary adaptation?
Scale-eating cichlids (Perissodus microlepis)
What does animal classification reflect?
A hierarchy of relatedness among species
Who developed the two-part naming system for species?
Karl von Linne (1707–1778)
What is the two-part naming system of organisms called?
Binomial nomenclature
What is the scientific name of the scale-eating cichlid?
Perissodus microlepis
What is the study of the relationships between organisms and their environment?
Ecology
Why is understanding ecology important?
Failure to understand it leads to detrimental consequences such as species extinction and ecosystem damage.
Which species caused cichlid extinction when introduced into Lake Victoria?
Nile perch (Lates niloticus)
What were the ecological consequences of introducing the Nile perch?
Extinction of many cichlid species, decreased water quality, and deforestation
What global factor stresses all natural resources?
Overpopulation
What environmental problems result from overpopulation?
Climate change, deforestation, water shortages, and extinction of species
What is considered the root cause of most environmental problems?
Overpopulation
What is the projected global population by 2050?
9.3 billion
Study of the structure of entire organisms and their parts
Anatomy
Study of the structure and functions of cells
Cytology
Study of the interaction of organisms with their environment
Ecology
Study of the development of an animal from the fertilized egg to birth or hatching
Embryology
Study of the mechanisms of transmission of traits from parents to offspring
Genetics