Humans have specialized organ systems compared to smaller organisms because
A) we have to interact with our environment and smaller organisms do not.
B) smaller organisms do not need as many nutrients.
C) our cells are larger.
D) small organisms do not do the same processes than humans do.
E) there is multicellularity and increased size in larger organisms.
E) there is multicellularity and increased size in larger organisms.
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Which of the following statements is correct?
A) In deuterostome animals, the blastopore becomes the mouth and the anus forms at a distant site. B) In coelomate animals, the coelom is located between the endoderm and the mesoderm. C) Arthropods show metamerism and tagmatization. D) Deuterostomes include the arthropods, echinoderms, and chordates.
Primarily in which plane does the swinging of a baseball bat occur?
A. sagittal B. frontal C. transverse D. obtuse
Hard masses composed of cholesterol and calcium carbonate called __________ can obstruct the bile ducts and cause excruciating pain.
Fill in the blank(s) with the appropriate word(s).
The chain of ossicles begins at the __________ and ends at the __________.
-cochlea; oval window -tympanic membrane; oval window -tympanic membrane; round window -cochlea; round window