Answer:
The first one
Explanation:
Mark me brainliest please
I think it’s false idek it could be true I still don’t know
Answer:
c
Explanation:
An experiment in which an observer tests a hypothesis by looking for changes brought on by alterations to a variable. In a controlled experiment, an independent variable is the only factor that is allowed to be adjusted, with the dependent variable as the factor that the independent variable will affect.
in Basic terms The control group provides a baseline that lets us see if the treatment has an effect.
The category of organisms in a water ecosystem that includes the larger active swimmers is called Nekton. There are three classification of aquatic organisms that can be classified according to their location or habitat. One of them is Nekton which includes the larger swimmers in water ecosystem and the other two are Plankton and Benthos. Nekton are mostly fish or other living things that swim through the water.
Answer:
All organisms need air. There are organisms called anaerobic organisms that don’t need oxygen, but all organisms need air.
Explanation:
