If land was cleared 100 years ago for farming and has recently returned to its natural state covered with plants and trees. What has taken place?

People may behave differently in artificial situations than they would in the "real world". This poses a particular problem for researchers using A. questionnaires. B. content analysis. C. replication. D. laboratory experiments

In the presence of oxygen glycolysis is followed by

Imagine the food chain a hawk eats a robin, the robin ate a grasshopper, the grasshopper ate grass, which organism is the source of energy for the food chain

How many levels of classification do scientists use today?

In which climatic zone is the day length about the same during the entire year?

Many mutations have been identified in the lac operon. A particular mutation prevents the repressor protein from binding to the operator under all circumstances.

What is the independent variable in this experiment? A) temperature B) Number of chirps C) Number of crickets D) Location of the laboratory

The parents of a client with a mental illness being cared for at home tell the nurse that they have been feeling overwhelmed lately. they say, "we need to get away for a few days to recharge ourselves.

Explain how the conversion of wetlands to farmland has impacted streams and rivers.

What type of bond links monomers together to form polymers? using the analogy of a train, if cars represent amino acids, what does the entire train represent?