In general, why must larger organisms have specialized structures to permit some life functions to occur?
What will be an ideal response?
In large organisms, specialized structures are required for movement of materials through exposed surfaces and
transport of materials between body regions because (1) many cells are too far from an exposed surface and (2)
there is not enough total surface area to allow all of the body's cells to exchange nutrients, oxygen, and wastes
directly with the environment. Other life functions, such as reproduction, are also complicated by organisms' larger
size.
You might also like to view...
Explain the medial to lateral placement of the muscle groups of erector spinae
What will be an ideal response?
Which of the following is one of the major functions of the pons?
A) breathing B) hunger C) thirst D) consciousness
____________________ is the insufficient circulation of oxygenated blood to cardiac muscle to maintain its aerobic metabolism
Fill in the blank(s) with correct word
What occurs when gamma motor neurons to a muscle are activated?
A. The muscle spindle goes slack. B. The contractile ends of intrafusal fibers elongate. C. The muscle lengthens. D. Extrafusal muscle fibers within that muscle are inhibited from contracting. E. Action potential firing increases in afferent neurons from the muscle spindles.