What is the class midpoint of the first class?A. 6 B. 5 C. 4 d.3

Which of the following words identify a question as absolute

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.

What did pavlov initially notice about the animals in his original research after conditioning took place?