A type of respiratory structure found in arachnids, such as spiders, that consists of stacked, leaf-like structures for gas exchange.

A type of pit found in plant cell walls, with a thickened, bordered structure that allows for the passage of…

Relating to the northern regions of the Earth, particularly the boreal forest biome characterized by coniferous trees.

A chemical element with the symbol B, important for plant growth and found in various minerals.

A genus of bacteria that includes species responsible for diseases like Lyme disease and relapsing fever.

A free-swimming larval stage in certain echinoderms, such as starfish.

A type of neuron in the retina that connects photoreceptor cells to ganglion cells, playing a role in visual processing.

Referring to appendages that are divided into two branches, typical of arthropods like crustaceans.

A warm-blooded, egg-laying vertebrate animal with feathers, wings, and a beak, belonging to the class Aves.

The number of live births per unit of population, typically measured per 1000 individuals per year.