Ecology and Population - Unit 1
What is the term for the largest population an environment can sustain?
Carrying capacity
What gas is needed for cellular respiration?
Oxygen
What process removes CO₂ from the atmosphere?
Photosynthesis
What selects traits in artificial selection?
Humans
What molecule is produced in cellular respiration and used for energy?
ATP
Name one density-dependent factor.
Predation, Disease, Competition, etc.
What is the main output of photosynthesis?
Glucose
What human activity increases atmospheric CO₂?
Burning fossil fuels
What type of evidence includes Archaeopteryx fossils?
Transitional fossils
What happens to a population when resources decrease?
Shrinks
What is the smallest level of ecological organization?
Organism
What molecule has more stored energy: ATP or ADP?
ATP
Which type of ecological pyramid shows organism counts?
Numbers pyramid
What is a remnant structure, like the human appendix, called?
Vestigial
What gas is released by burning fossil fuels?
CO₂
What happens to a population when it reaches carrying capacity on a graph?
Levels off
What process occurs in muscles when oxygen is low?
Fermentation
What happens to photosynthesis when sunlight decreases?
Slows down
Who survives in natural selection?
The fittest
What is another name for producers?
Autotrophs
Name one density-independent factor.
Natural disasters
What energy is used to power photosynthesis?
Sunlight
What cycle describes carbon moving through Earth's systems?
Carbon cycle
What does common ancestry mean?
Shared ancestor
What molecule is created by combining carbon, hydrogen, and oxygen during photosynthesis?
Glucose