A unique physical feature between animals that does not mean they share a common ancestor.
What is ANALOGOUS FEATURES?
The brain and spina cord make up this part of the nervous system.
What is the CENTRAL NERVOUS SYSTEM?
In the water cycle, water is lost to the atmosphere through this process.
What is EVAPORATION?
What is PHLOEM?
This caused the Great Dying.
What are VOLCANIC ERRUPTIONS?
This is a type of cell found in the nervous system.
What is a NEURON?
This element is essential to make DNA and proteins.
What is CARBON?
These are pores that allow water to escape through leaves.
What are STOMA or STOMATA?
Darwin sailed on this ship for five years.
What is the HMS BEAGLE?
A state where the gene pool remains the same for a population.
These structures in the lungs are where air exchange occurs.
What is ALVEOLI?
This is at the bottom of an ecological pyramid.
What are PRODUCERS?
This organelle is where photosynthesis occurs.
What is the CHLOROPLAST?
These are the smallest and most numerous blood vessels.
What are the CAPILLARIES?
Populations and species of organisms change over time.
What is EVOLUTION?
This is known as the "main airway."
What is the TRACHEA?
This is at the top of a trophic pyramid.
What are CARNIVORES?
This structure houses chlorophyll.
What is the THYLAKOID?
This is the body's tendency to maintain a stable internal environment.
What is HOMEOSTASIS?
Change in allele frequency due to immigration.
This gland regulates sleep cycles.
What is the PINEAL gland?
Toxic chemicals are consumed and concentrated higher up the food chain.
What is BIOMAGNIFICATION?
In a light-dependent reaction, what molecules leave the chloroplast?
What are OXYGEN MOLECULES?
This community interaction is a close, long term association that can have positive and negative effects, depending on the organisms involved.
What is SYMBIOSIS?