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.

sample response

Explanation:

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.

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:

that was the sample response, but if you want to make your own then these are thing you need to include:

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

carbon atoms, hydrogen, oxygen, and nitrogen.