2025 RC3/5 Bio Evo, NS, Ecology + DNA

Front

What is adaptation in the context of evolution?

Back

Adaptation refers to the process by which a species becomes better suited to its environment through changes in its traits, enhancing its survival and reproduction.

Front

What is the significance of bright coloration in nudibranchs?

Back

Bright coloration in nudibranchs serves as a warning signal to predators, indicating that they may be toxic or unpalatable.

Front

Define commensalism in ecological relationships.

Back

Commensalism is a type of symbiotic relationship where one organism benefits while the other is neither helped nor harmed.

Front

What is the role of DNA in heredity?

Back

DNA carries genetic information that is passed from parents to offspring, determining traits and characteristics.

Front

Explain the concept of a common ancestor in evolutionary biology.

Back

A common ancestor is an ancestral species from which two or more descendant species have evolved, indicating a shared evolutionary history.

Front

What is the function of cytochrome b in organisms?

Back

Cytochrome b is a protein involved in the electron transport chain, playing a crucial role in cellular respiration and energy production.

Front

What does it mean for species to be closely related?

Back

Species are considered closely related if they share a recent common ancestor and have similar genetic, morphological, or behavioral traits.

Front

What is the significance of the Camelidae family in taxonomy?

Back

The Camelidae family includes animals like camels and llamas, characterized by specific physical traits and a common evolutionary origin.

Front

Define herbivory and its ecological impact.

Back

Herbivory is the consumption of plant material by animals, which can influence plant community structure and ecosystem dynamics.

Front

What is the difference between mutualism and parasitism?

Back

Mutualism is a symbiotic relationship where both species benefit, while parasitism is where one species benefits at the expense of the other.