Answer:
Observers ahead of the wave observe an apparent increase in wave frequency
Explanation:
This is the Doppler Effect. The frequency of a wave increases when the source approaches the observer and decreases as the source recedes.
B, C, and D are wrong. Observers behind the source notice a decrease in frequency.
That Trait (Hitchhiker's thumb) may be recessive in both the parents but when they transmitted their genes to their offspring, it became dominant in that 'cause of two similar genes (Homozygous Condition).
Hope this helps!
If waves continuously crash down on the land over time, the shore begins to erode because of the amount of pressure constantly pushes down on it, which can cause the shore to eventually wear down.
Consumers are Biotic
Decomposers are Biotic
Living Features part does not make sense, Living features are in an environment and are caused by competition
Producers are Biotic
A result of Competition part does not make sense, competition is caused by two or more species of biotic organisms competing for food, shelter, or space.