Atividade 1- -05/11

What is the primary focus of ecology as a scientific discipline?

• The study of individual cells

• The study of the relationship between living organisms and their environment

• The study of chemical reactions in organisms

• The study of the physical structure of organisms

Which of the following correctly describes the hierarchy of biological organization from smallest to largest?

• System, organ, tissue, cell, organism

• Tissue, cell, organ, organism, system

• Cell, tissue, organ, system, organism

• Organism, system, organ, tissue, cell

What is a population in ecological terms?

• A group of individuals of the same species living in a specific area

• A single organism in its habitat

• A group of different species living in the same area

• A collection of ecosystems in a region

How can environmental changes affect populations?

• They can cause populations to either increase or decrease

• They have no effect on populations

• They can only increase population size

• They can only decrease population size

What constitutes an ecosystem?

• Only the non-living components like rocks and rivers

• The interaction between communities and their non-biological environment

• Only the living organisms in an area

• A single species in its habitat