A) In some animals,sperm and eggs can be stored before they are released
B) The digestive system can be coiled and provide greater surface area
C) Muscle contractions against the fluid chambers are absorbed and have no effect
D) In some animals,fluids here can assist respiration and circulation,and accumulate metabolic wastes
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Multiple Choice
A) It remains in the blastula stage.
B) gastrula
C) acoelomate
D) pseudocoelomate
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Short Answer
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Short Answer
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View Answer
Multiple Choice
A) Endoderm
B) Ectoderm
C) Mesoderm
D) Mesoderm and endoderm
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Multiple Choice
A) Improving food procurement by moving the mouth to the region of greatest sensing
B) Directed movement through an environment
C) Concentration of sensory organs at the point first likely to encounter the environment
D) Concentration of the sensory organs to increase sexual copulatory function
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Multiple Choice
A) acoelomate.
B) eucoelomate.
C) pseudocoelomate.
D) coelomate.
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Multiple Choice
A) Radial symmetry
B) Segmentation
C) Extreme cephalization
D) Coelom
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Multiple Choice
A) Muscle tissue
B) Nervous tissue
C) Epithelial tissue
D) Connective tissue
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Multiple Choice
A) The cuticle of an insect provides protection
B) Cartilage of chordates provides stability and protection
C) Loose connective tissue generally holds the body together
D) Blood plasma is an important hydrostatic fluid in humans
E) Bone provides stability and protection as well as a storage place for minerals
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Multiple Choice
A) Line body surfaces and cavities
B) Bind and support body parts
C) Store energy (e.g. ,fat)
D) Produce blood cells
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Multiple Choice
A) acoelomate.
B) eucoelomate.
C) pseudocoelomate.
D) coelomate.
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Short Answer
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Multiple Choice
A) medial,anterior,and dorsal.
B) medial,anterior,and ventral.
C) medial,posterior,and ventral.
D) lateral,anterior,and ventral.
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Multiple Choice
A) Collagen in cartilage is otherwise a relatively rare substance in animals
B) Cartilage is a semi-rigid form of connective tissue with packed fibers embedded in a gel-like matrix
C) The matrix of cartilage includes collagen and elastic fibers
D) The skeleton of the human fetus is originally made up of cartilage
Correct Answer
verified
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