Which steps do scientists take when investigating the natural world? Form a question.
Develop a hypothesis.
Make observations.
Conduct controlled experiments.
Make predictions
Collect data.
Analyze data
Develop a conclusion.
RETRY

Make observations

Develop a hypothesis

Analyze data

Collect data

Develop a conclusion

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

it would lead to upper respiratory infections and pneumonia.