Population Ecology

The extinction of the golden toad is a global concern because:

• it indicates a loss of biodiversity.

• it affects global weather patterns.

• it has economic implications.

• it is a result of human activities.

What does this definition imply about the study of ecology?

• It suggests that ecology is the study of interactions among organisms and their environment.

• It implies that ecology is only concerned with plant life.

• It indicates that ecology is a branch of chemistry.

• It means that ecology is unrelated to environmental science.

What is ecology?

• The study of interactions between organisms and their environment

• The study of celestial bodies

• The study of chemical reactions

• The study of ancient civilizations

Scientists study ecology at various levels of organization. Which of the following is not a level of ecological organization?

• Individual

• Population

• Community

• Cell

Fill in the blank: The study of how organisms interact with each other and with their environments is called _______.

• ecology

• biology

• geology

• zoology

What is the basic unit of life?

• Tissue

• Cell

• Organ

• Organ system

Ecologists study life above the levels of cells, tissues, organs, and organ systems. The most basic unit they study is an individual _______.

• organism

• cell

• molecule

• atom

Ecologists study relationships between _______.

• organisms

• planets

• machines

• buildings

What is a population? Fill in the blank: A population is a species that live together in the same _______.

• habitat

• ecosystem

• community

• environment

What is population ecology?

• The study of how individuals interact with each other

• The study of individual species

• The study of ecosystems

• The study of climate change.