Organisms that have both algal and fungal characteristics are called lichens.

Here's why:

* Algal Characteristics: Lichens contain a photosynthetic partner, usually an alga (sometimes cyanobacteria). This partner provides the lichen with food through photosynthesis.

* Fungal Characteristics: The other component of a lichen is a fungus. The fungus provides structure and protection for the lichen, as well as absorbing water and minerals.

Essentially, lichens are a symbiotic relationship between an alga and a fungus, where both organisms benefit. The alga provides food, and the fungus provides shelter and nutrients.

While they exhibit characteristics of both algae and fungi, lichens are considered a unique and distinct group of organisms.