Answer:
coat color blending in with dry grass.
Explanation:
the gazelle has a brown colored coat and dry grass is also a similar brown color allowing them to blend in more with their surroundings.
The movement is a called a reflex, which is a sudden muscle movement in response to a stimuli. The reflex you are describing is a reflex known as a plantar reflex, which is present in infants and children but goes away before adulthood (ideally).
Answer:
A wave increasing in energy as it hits another wave
