An exoskeleton is found in _Molluscs and Arthropods__; an endoskeleton is found in _____sponges, echinoderms, and vertebrates. __.
There are many ways you can prevent a heart attack :
You can be a healthy weight
Have high cholesterols and blood
You can not smoke
Avoid drinking too much
Controls any illnesses that you have for example diabetes
There’s a few hope that helps if you need any more I know some more !
C. the periodic rise and fall of the ocean surface
The final product of the Calvin cycle is <span>glucose</span>