Chapter 21: The History of Life on Earth
21.1 How Do Scientists Date Ancient Events?
Fossils can tell us a great deal about the body form, or morphology, of
organisms that lived there long ago, as well as how and where they lived.
Earths history is larg
Ch 52: Ecology and the Distribution of Life
ecology: scientific study of rich and varied interactions btwn organisms and environment
communities: systems embracing all the organisms loving together in the same area
ecosystems: systems embracing all o
Chapter 23: Species and Their Formation
23.1 What Are Species?
We can recognize and identify many species by their appearance
Linnaeus described hundreds of species on the basis of their
appearancemorphological species concept.
Species form over time
Chapter 22: The Mechanisms of Evolution
22.1 What Facts Form the Base of Our Understanding of Evolution?
Darwin went on a 5-year-long voyage and made a lot of observations. When he returned to
England, in 1836, he tried to understand and analyze these obs
culture: set of behaviours shared by members of a population, transmitted through learning
when generations do not overlap, parental guidance is not factor is acquisition of behaviour
stereotypic: performed almost exactly the same way each time (ex s
CHAPTER 54- POPULATION ECOLOGY
54.1 How Do Ecologists Study Populations?
Population consists of the individuals of a species within a given area
any given time, an individual organism occupies only one spot in spaceparticular age and size
members are dist
EESA Notes Lecture 1a
Your environment is your health, but not the only factor influencing your health.
Genetic material can influence our health; influences what we are immune and weak to.
What is environmental health? According to WHO (World Health Orga
Chapter 57: Conservation Biology
57.1 What is Conservation Biology?
Devoted to preserving the diversity of life on Earth
Draws heavily on concepts and knowledge from population genetics, evolution,
ecology, biogeography, wildlife management, economics a
Chapter 56: Ecosystem and Global Ecology
56.2 How Does Energy Flow Through the Global Ecosystem?
Solar energy drives ecosystem processes
Solar energy enters ecosystems by way of plants and other photosynthetic
Only about 5 percent of the sola
Chapter 55: Community Ecology
55.1 What Are Ecological Communities
The species that live and interact in an area constitute an ecological
Communities are loose assemblages of species
Ecological communities are not assemblages of organism that