Definition: A type of blue pigment found in certain bacteria, especially cyanobacteria, that helps in photosynthesis.

Example: Phycocyanin is responsible for the blue color in many species of cyanobacteria.

Definition: A type of red pigment found in certain algae, particularly red algae, that helps in photosynthesis.

Example: Phycoerythrin is responsible for the red color of many species of red algae.

Definition: The area of science that focuses on the study of algae, which are simple, plant-like organisms found in water.

Example: She is studying phycology to learn more about the different types of algae in the ocean.

Definition: A type of fungus that looks like algae and includes certain molds and mildews.

Example: Phycomycetes are often found in damp environments and can be important in the decomposition process.

Definition: A method or practice that provides protection against infectious diseases.

Example: Vaccination is a common form of phylaxis to prevent illness.

Definition: Relating to the evolutionary history and development of a species or group of organisms, focusing on their lineage and changes over time.

Example: The phyletic relationships among species can help scientists understand their evolutionary history.

Definition: In a way that relates to the evolutionary development and diversification of a species or group of organisms.

Example: The species evolved phyletically, showing clear changes over generations.

Definition: A type of metamorphic rock that is fine-grained and has a layered structure, often appearing in colors like green, gray, or red, and is known for its shiny surface.

Example: The geologist explained that phyllite is often found in mountainous regions where metamorphic processes occur.

Definition: Relating to the arrangement of leaves on a plant stem.

Example: The phyllotactic pattern of the sunflower is a fascinating example of nature's design.

Definition: The way leaves are arranged on a plant stem, following specific patterns or rules.

Example: The phyllotaxis of the sunflower shows a beautiful spiral pattern.