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Which is an example of an intrinsic factor can affect growth?

Infants rely on vision to refine the path of arm reaches after they have learned to generally reach for objects.

Changes in various measures of body size during adulthood to a great extent reflect the influence of extrinsic factors. The result is that body size among adults becomes increasingly variable across the span of adulthood and older adulthood.

Which of the following is a characteristic of children’s early attempts to catch? Select all that apply. 

Which of the following are true regarding the development of balance during childhood? Select all that apply.

After the adolescent growth spurt, sex differences in muscle mass result more from differences in arm musculature than leg musculature.

Because the brain attains 80% of its adult size in the first few postnatal years, it is particularly susceptible to extrinsic factors such as poor nutrition or a physical blow during this time.

Extrinsic (external) factors are those influences that have only a negative effect on growth and development.

The developmental transition for trunk action in sidearm striking is (1) block rotation followed by (2) differentiated rotation.

The conduction speed of nerve impulses is aided by the development of ____________ cells that wrap themselves around the axons.