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A(n) ____________________ is the sheet of muscle located beneath the lungs that is used to expand and contract the chest cavity of mammals. a. diaphragm c. organ b. gland d. tumor
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Asked 11/13/2014 6:40:36 PM
Updated 11/13/2014 9:10:58 PM
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Confirmed by andrewpallarca [11/13/2014 9:10:58 PM]
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User: A(n) ____________________ is the sheet of muscle located beneath the lungs that is used to expand and contract the chest cavity of mammals. a. diaphragm c. organ b. gland d. tumor

Weegy: A DIAPHRAGM is the sheet of muscle located beneath the lungs that is used to expand and contract the chest cavity of mammals.



User: Complex nervous systems and highly developed brains make it possible for many kinds of mammals to learn. Please select the best answer from the choices provided T F

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Asked 11/13/2014 6:40:36 PM
Updated 11/13/2014 9:10:58 PM
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This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [11/13/2014 9:10:58 PM]
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Questions asked by the same visitor
The levels of organization within the human body include: groups of cells with similar functions organized into organs, groups of organs with similar functions organized into tissues, and groups of tissues with similar functions organized into organ systems.
Question
Updated 6/7/2015 6:39:38 AM
1 Answer/Comment
The levels of organization within the human body include: groups of cells with similar functions organized into organs, groups of organs with similar functions organized into tissues, and groups of tissues with similar functions organized into organ systems. This is FALSE.
The correct level is:
cells > tissues > organs > organ system
Added 6/7/2015 6:39:38 AM
This answer has been confirmed as correct and helpful.
The class of cnidarians that includes corals and anemones that typically live only as polyps is the a. Anthozoa. c. Scyphozoa. b. Hydrozoa. d. None of the above
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Updated 11/13/2014 10:39:23 PM
1 Answer/Comment
The class of cnidarians that includes corals and anemones that typically live only as polyps is the Anthozoa.
Added 11/13/2014 10:39:22 PM
This answer has been confirmed as correct and helpful.
Fossils of fish appeared approximately 500 mya during the _____________. a. Archaen c. Proterozoic b. Cambrian d. Phanerozoic
Weegy: Fossils of fish appeared approximately 500 mya during the Cambrian. User: The subphylum Vertebrata includes all of the following except a. fish. c. reptiles. b. lancelets. d. birds. Weegy: The subphylum Vertebrata includes all of the following except: b. lancelets. Lancelets belong to a subgroup of vertebrates. Technically, they are invertebrates because they lack bony structures; however, their bodies are supported by a gelatinous rod of tissue ? a precursor to a backbone. User: Most fish have fins that are? a. Horizontal c. Paired b. Lobed d. All of the above Weegy: Most fish have fins that are: ALL OF THE ABOVE (Horizontal, Paired and Lobed). User: Fish usually have fins that are a. Pear-shaped c. Diamond-shaped b. Fan-shaped d. Elongated Weegy: Fish usually have fins that are b. Fan-shaped User: All classes of fishes possess a ____________________, composed of fluid-filled canals arranged along the sides of the body, which permit them to detect movement and vibrations in the water. a. swim bladder c. lateral line system b. limbic system d. malpighian tubules Weegy: All classes of fishes possess a Lateral-line system, composed of fluid-filled canals arranged along the sides of the body, which permit them to detect movement and vibrations in the water. [ [ [smile] ] User: When fish breathe, their gills exchange oxygen and ___________. a. Carbon dioxide c. Carbon monoxide b. Nitrogen d. Only oxygen is exchanged Weegy: When fish breathe, their gills exchange oxygen and CARBON DIOXIDE. User: Lancelets a. are animals that live near the ocean surface. b. filter food from water that enters the mouth. c. have chordate features only in the larvae stage. d. are the first animals that evolved backbones. Weegy: Lancelets: filter food from water that enters the mouth. User: Which of the following are NOT adaptations fish have made to their environment? a. lateral line system c. gills b. 3-chambered ... (More)
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Updated 11/13/2014 6:29:59 PM
1 Answer/Comment
Fins are used for all of the following except Eating.
Added 11/13/2014 6:29:59 PM
This answer has been confirmed as correct and helpful.
Confirmed by selymi [6/4/2015 11:23:08 PM]
To allow for terrestrial reproduction, reptiles have evolved an egg containing a — a. yolk. c. amnion. b. chorion. d. All of the above
Weegy: To allow for terrestrial reproduction, reptiles have evolved an egg containing: All of the above. (Yolk, amnion, and chorion.) (More)
Question
Updated 11/14/2014 12:59:26 AM
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To avoid being digested by their host, endoparasites have a thick protective covering called the a. cell wall. c. protoplasm. b. cilia. d. tegument.
Weegy: To avoid being digested by their host, endoparasites have a thick protective covering called the: TEGUMENT. (More)
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Updated 11/13/2014 6:16:53 PM
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