Answer:
This is easy, CO2 is (Carbon Dioxide) a main cause of air pollution. We put it in the air every day when we drive cars or vehicles. And from wildfires and volcanoes, but they rarely erupt now.
Explanation:
B. the bond forms when electrons are shared
Both A, B, and C are found in the excretory system.
Myofibrils are in the muscle of the intestines, villi increase surface area of the intestine, and nephrons help to filter in the kidney. Osteoblasts are found in bone, so therefore is not part of the excretory system
Answer:
A
Explanation:
They do not have highly developer senses or surely they don't have a backbone ,every animal that have a backbone isn't an inverterbate.Thy don't have an enclosed circulatory sistem neither
