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Antibodies are produced when the body is exposed to A. white blood cells. B. receptor proteins. C. antigens. D. macrophages.
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Asked 5/6/2012 1:33:54 AM
Updated 4/2/2018 9:15:50 AM
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Edited by Masamune [4/2/2018 9:15:30 AM], Edited by Masamune [4/2/2018 9:15:49 AM], Confirmed by Masamune [4/2/2018 9:15:50 AM]
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User: Antibodies are produced when the body is exposed to A. white blood cells. B. receptor proteins. C. antigens. D. macrophages.

Weegy: Antibodies are produced when the body is exposed to antigens.
selymi|Points 8182|

User: The body's most important nonspecific defense against pathogens is/are A. tears. B. mucus. C. saliva. D. skin.

Weegy: The body's most important nonspecific defense against pathogens is skin.
vandar|Points 911|

Question
Asked 5/6/2012 1:33:54 AM
Updated 4/2/2018 9:15:50 AM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by Masamune [4/2/2018 9:15:30 AM], Edited by Masamune [4/2/2018 9:15:49 AM], Confirmed by Masamune [4/2/2018 9:15:50 AM]
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Organisms are grouped in an ecosystem by how they get their energy.
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Updated 11/4/2016 7:11:18 AM
2 Answers/Comments
The excretory system consists of kidneys, ureters, urinary bladder.
Added 11/4/2016 6:44:34 AM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [11/4/2016 7:10:24 AM], Rated good by Janet17
A group of organs that work together to perform a closely related function is called an organ system.
Added 11/4/2016 7:11:18 AM
This answer has been confirmed as correct and helpful.
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Updated 11/4/2016 7:29:52 AM
1 Answer/Comment
What is the liver an example of? A. a cell B. a tissue C. an organ D. an organ system
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Updated 11/4/2016 7:26:39 AM
4 Answers/Comments
The liver is an example of an organ.
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This answer has been confirmed as correct and helpful.
An amoeba is not an animal because: it is unicellular.
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This answer has been confirmed as correct and helpful.
Collections of similar cells are called: tissues.
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