Answer:
In most bird species, there are 10 primary feathers on each wing. If these flight feathers are damaged or lost, a bird cannot fly. Secondary feathers: These run along the 'arm' of the wing and sustain the bird in the air, giving it lift. The number of secondary feathers varies with different species.
Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.
If animals don't adapt to it they can die.
Primary succession begins in barren areas, such as on bare rock exposed
by a retreating glacier. The first inhabitants are lichens or
plants—those that can survive in such an environment. Over hundreds of
years these “pioneer species” convert the rock into soil that can
support simple plants such as grasses. These grasses further modify the
soil, which is then colonized by other types of plants. Each successive
stage modifies the habitat by altering the amount of shade and the
composition of the soil. The final stage of succession is a climax
community, which is a very stable stage that can endure for hundreds of
years.
The ecological succession that occurs on a preexisting soil after the primary succession has been disrupted or destroyed due to a disturbance that reduced the population of the initial inhabitants.