PLEASE HELP EMERGENCY PLEASE!! Question: What can you infer about carbon dioxide from the function of the respiratory system?

It helps you breathe

It is more common than oxygen

It is harmful to your body

It is not found in the body

(This is 7th grade science)

What was carolus linnaeus' classification system of organisms based on? a.physical characteristics of organisms b.food habits of organisms c.habitat of organisms d.size of organisms

The images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that . the archaeopteryx and bird have wings, while dinosaurs have limbs. so, it can be concluded that .

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?