Baby Kevin can accurately reach for a toy bat and grasp it in his hands, although he cannot yet stand on his feet. Only when he is older will he be able to control his legs well enough to stand. This pattern of development illustrates the principle.
A. proximodistal
B. cephalocaudal
C. centrifugal
D. longitudinal

Cephalo-caudal

Explanation:

Cephalo-caudal is a physical development in children. This is the development that occurs from head to toe. This development started from its top point of the body to the down point of the body. It means that the brain and the head development occur first and then the rest of the body develops this development largely completed until adulthood in human beings. Other development also occurs during the life span.

Bay Kevin was developed on the principle of cephalo-caudal.

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)