Black widow spiders are considered the most venomous spiders in North America. They are roughly 1.5 inches long. Black widows have a life cycle of one to three years. Is a black widow spider a vertebrate or an invertebrate? Be sure to justify your answer.

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Biology

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28 March, 19:17

Black widow spiders are considered the most venomous spiders in North America. They are roughly 1.5 inches long. Black widows have a life cycle of one to three years. Is a black widow spider a vertebrate or an invertebrate? Be sure to justify your answer.

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Answers (2)

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Alejandro Sloan · Answer 1

A black widow spider is classified as an invertebrate. It does not have a backbone or internal skeleton. It has an exoskeleton. The life cycle for the black widow spider is short.

Explanation: I took the test and this was the sample response.

Grayson Mathis · Answer 2

The black widow spider is an invertebrate. Its skeleton system hangs outside its body. The only difference between a vertebrate and invertebrate is the presence of backbone or a similar kind of structure with in the body. In case of black widow spider, the internal structural element is missing. Its skeleton system can be classified as exoskeleton.