Ecosystems 1
What is the trace or remains of an organism that lived in the distant past?
Fossil
People burning fuel causes an increase in:
A. Carbon Dioxide
B. Oxygen
C. Helium
Carbon Dioxide
What is the gradual change of a species over time?
Evolution
What is an area in which living and nonliving things interact?
Ecosystem
Scientists who study birds are called__________.
Paleontologists
Which foods come from a tropical rain forest?
A. Bananas
B. Wheat
C. Avocados
Bananas and Avocados
This natural process results in similarities among groups of animals that are not closely related through evolution.
Convergence
What is the imaginary line that goes around the middle of Earth?
Equator
Adaptation
What is the worldwide increase in temperatures called?
Global warming
What is the process in which living things use oxygen to get energy from food?
Respiration
What is a change in genetic material called?
Mutation
What is the process called where plants use energy from sunlight to combine carbon dioxide and water to make food?
Photosynthesis
What is the carbon dioxide-oxygen cycle?
A process in which plants use carbon dioxide given off by other living things and make oxygen, which is in turn used by the other living things.
What is the term that describes organisms that are best suited to their environments are most likely to survive and reproduce.
Natural selection
What is the greenhouse effect?
The role of carbon dioxide and other gases in warming Earth.