As animals have evolved large body size, they have also evolved adaptations to improve exchange of energy and materials with the environment. For example, in many larger organisms, evolution has favored lungs and a digestive tract with ________.
A) more branching or folds
B) increased thickness
C) larger cells
D) decreased blood supply
Correct Answer:
Verified
Q1: Most of the exchange surfaces of multicellular
Q3: All types of muscle tissue have _.
A)
Q4: Both the endocrine and nervous systems transmit
Q5: Some animals have no gills when young,
Q6: Generally, epithelial cell layers are responsible for
Q7: Interstitial fluid is _.
A) the internal environment
Q8: Evolutionary adaptations that help some animals directly
Q9: Food moves along the digestive tract as
Q10: In mammals, GH (growth hormone) is an
Q11: Connective tissues typically have _.
A) little space
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