Jackie is doubling the recipe and it says she needs 3/4 cup of milk. If she is doubling it how much would she need?

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.