Answer:
Darwin noted that not all offspring that are born survive, that there is variation in the population, and that there is a struggle for survival.
Explanation:
The theory of evolution, proposed by Darwin, is based on some key points: common ancestry and natural selection, which proposes that the most suitable organisms survive. In any group of species, all individuals have common ancestors at some point in evolutionary history. Thus, they are descendants of them with modifications and result from natural selection.
A wooden marionette is a figure that is normally used for theatrics. It is controlled by a person who holds it from the upper part with a series of nylon strings which are attached to each of the marionette's extremities.
A Wooden diving board is normally found on the edge of swimming pools. It is used by amateur and professional divers in order to execute dives into the pool.
Both of them function by the principle of equilibrium. In the case of the marionette, the person who is operating it moves its fingers up and down in order to create movement. In the case of the diving board, the metal bolts which hold the board's structure cause an opposing force that ultimately serves as a counterbalance when the diver jumps into the other end of the board.
Spine, cranium and rib cage.
All seem false, but D is the only one I can think of a reason it might be true. As Africa’s has decreased steadily as globalization increased.