Scientists use models for many reasons. What is one of those reasons? A)
Scientists can manipulate different factors withot recreating the
experiment everytime.
B)
Models are more expensive than scientists salaries.
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Models are more accurate than the real thing.
D)
Models are less reliable than scientists.

Of course: ) what’s your name ?

Replicate prove reliability and validity

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.