What defines an ecosystem?

O living things

O the environment

both living things and the environment

Which of the following is a difficulty associated with environmental protection? a. cost b. unpredictability c. sustainability d. all of the above

Soils are an important part of the global carbon cycle. tree or false?

One person can carry a 4 day supply of food and water for a trip

What is the casparian strip? why is it important?

What would happen if global warming were continue

Scientists use a standardized taxonomic system to separate organisms into hierarchical groups based on similarities and differences in their structural and genetic characteristics Which of the following best explains why a standardized

What happens to atoms after an animal has died?

If an organism has high biological fitness in one environment, does that mean it would also have high biological fitness in another environment? Why or why not

Where is magnet the strongest A) at the poles B) South pole C) North pole D) None of the aboves

A piece of iron at 25 °C is dropped into a glass of water at 15 °C. Which statement is correct? Heat will flow from the iron to the water in the glass until both reach the same temperature.