c introduction, growth, maturity, decline
An animal's life span is literally how long it lives. It's life cycle is the phases of development and behaviors that occur during that life span.
There are many types of cycles but I'm going to assume you're talking about the life cycle, life cycle is continued and never stopped until the creatures all have pass away. The life span is an average life time usually in years, like the hamster/gerbil life span is 3-4 years a dog life span is 12-14 years. The life cycle would just be, well life.
According to my knowledge , any two wheeler has a maximum lifetime span of 1.5 Lakh kilometres for the engine.
A eucalyptus tree have an average life span of 400 years
Life span is one life time. Life cycle is from the animal to its offspring to their offspring etc. Butterflies, for example: egg -> caterpillar -> chrysalis -> butterfly -> egg etc
It means the length of time a product will last, or stay fresh.
Tornadoes are not alive. Sometimes a person may refer to the life span or life cycle of a tornado, but that does not mean actual life.
the life cycle of a goliath birdwing butterfly is weird
Egg, Nymph, then Adult.
Many years and can spa decades
Life span should probably be reserved for things which have life - living things. It is only by analogy that we consider the life of the universe, the Sun, the half life of radionuclides, the Plate Tectonic cycle, and so on. In manufacturing we may consider the product life cycle, or the expected life of a product such as a cellphone, but these again are only by analogy.