Tissues are composed of cells, and tissues functioning together make up
Of the following choices, the epithelium with the shortest diffusion distance is
simple squamous epithelium
Connective tissues typically have
relatively few cells and a large amount of extracellular matrix.
If you gently twist your earlobe, it does not remain distorted because it contains
In a typical nerve cell, the nucleus is found in the
Choose the list that presents the four stages of food processing in the order in which they naturally occur.
ingestion → digestion → absorption → elimination
Animals that migrate great distances would obtain the greatest energetic benefit of storing chemical energy as
The fat-soluble vitamins include
The large surface area in the gut directly facilitates
Because the foods eaten by animals are often composed largely of macromolecules, this requires the animals to have mechanisms for
The fluid that moves around in the circulatory system of a typical arthropod is
the interstitial fluid.
A portal system is
a vessel or vessels connecting two capillary beds.
Which of the following pairs of mammalian blood vessels has blood that is the least similar in its gas content?
the pulmonary vein and the jugular vein
Among the following choices, which organism likely has the highest systolic pressure?
Among these choices, the biggest set that includes only those "cells" that lack nuclei is
platelets and erythrocytes