When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the ?

Which image shows labeled organelles that are present only in plant cells?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

If animal agriculture was eliminated, how much grain would become available for human consumption?