Tommy is planning his science fair project. he wants to measure the rate of photosynthesis in plants that live in fresh water. is this an example of a scientific investigation or an experiment? an experiment because it shows a cause and effect relationship an experiment because it does not ask a testable question an investigation because it can be easily done in natural settings an investigation because there is a control group

It's B: An experiment because it does not ask a testable question.

Hoped this helped let me know if it was correct!

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals