An environmental change occurs, causing a change in the plot of snails present in an ecosystem. the graph shows the color distribution in a snail population at two different times. select three possible explanations for the result in the graph. science is not my strong suit could someone me out and explain the answer?

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

What was darwins theory of common decent

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.