Final answer:
Redwood, cedar, black locust, and black walnut are examples of hardwoods, which are durable, decay-resistant, and have high levels of tannins. The structure of their wood supports extreme tensions required for water transport, aiding their ability to grow very tall.
Step-by-step explanation:
Redwood, cedar, black locust, and black walnut are examples of resistant woods. Specifically, these woods are known for their durability and their resistance to decay, which is imparted by high levels of tannins in the wood.
Given the characteristics of these woods, including their strength and the structural features of their tracheids that accommodate extreme tensions for water transport, these can be classified as hardwoods. These types of wood are typically denser and used for their durability in various construction and building applications.
The redwood species, specifically the coastal redwood mentioned in the exercise, demonstrates remarkable durability and the ability to grow very tall, characteristics shared by hardwoods.
Furthermore, redwoods are known to thrive in very specific environmental conditions which include areas with lots of fog, such as the coastal slopes of Northern California and Oregon, as well as parts of China where they were rediscovered after being thought extinct.