Answer:
Hundreds of years ago, South American fishermen observed that every year around December or Christmas, coastal waters of the Pacific became warmer as a current flowed from north to south. This change often meant a smaller fish catch but more rainfall inland that translated to more abundant crop harvest .
Explanation:
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Answer:
Explanation:
The independent variable determines the value that needs to be calculated or the decision that needs to be made from the observations of the experiment. Hence, experimental design decision would most likely produce invalid and unreliable results when having more than one independent variable.
Answer:
living: predataors- frogs, bigger fish, birds, bears(depends on location),
prey- insect, algae, seaweed, snails
nonliving: pollution, amount of oxygen in waters, pH levels
Explanation:
Answer:
D. Predator-prey!
Hope This Helps! And that I wasn't too late!
