Which of the following choices is true of darwin's theory of natural selection?
1points

a
his theory stated that all the species of life that existed in his time were the same as when life first emerged.

b
it was based solely on his observations made during his visit to the galapagos islands.

c
his theory stated that any change to a species was caused by humans using artificial selection.

d
his theory stated that the organisms best suited to their environment produce more offspring, causing the species to change over time.

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s