Exam 3: Basic Needs of Living Things

Denitrification in sewage treatment systems requires

Which one of the following is the broadest scope of ecological study?

Which one of the following is the most inclusive category?

In most energy conversions,such as burning coal to produce heat,

Which of the following would most likely cause the greatest harm to wild Giant Panda populations in China?

Nina gets a new baby turtle from a friend,and is told to feed it worms.For the first few months,the turtle seemed to grow well.But as time passed,the turtle's shell appeared soft and fragile.Someone suggested that the turtle might not be getting enough calcium in its diet.If this is true for this turtle,dietary calcium is

Cell respiration and photosynthesis are both complex processes that

An average person might consume 2,000 Kilocalories of food in one day.This is enough energy to heat up how many 2-liter bottles of liquid water from 0 degrees Celsius to 100 degrees Celsius (just reaching the boiling point of water,but not turning the water into steam)?

Perpetual motion machines without an additional energy input cannot exist because

The continuing addition of large amounts of nitrogen and phosphorus to aquatic ecosystems may exceed planetary boundaries and create a "tipping point" in which

Which one of the following statements about the carbon,phosphorus,and nitrogen cycles is true?

Take a big breath of air.You have not inhaled any

In the Appalachian Mountains,several species of salamander live in or near a stream.The largest species lives in the stream and along its edges,a smaller species lives on land within a meter or two of the stream,and a smaller species lives about 3-5 meters away from the stream.In this region,these three salamander species are using

Most amphibians in Georgia can tolerate the warm temperatures of summer.However,during one particularly dry year,when humidity was very low and temperatures were high,many of the frogs died.In this situation,

Which one of the following characteristics is most useful in identifying separate species? Closely related but separate species do not

Which of the following processes reduces entropy?

The oxygen released from photosynthesis came from

Some birds have been seen to consume certain soils in what is called geophagy.In some cases,the soils help the birds digest toxins that occur in their diets.These birds eating soil represent a member of the

You sit comfortably in your room studying and notice that the air temperature is fluctuating considerably.Perhaps the air conditioning system is not well regulated.Sometimes it gets too hot and you sweat while other times you get so cold that you shiver.When you are sweating or shivering,you are exhibiting your

Living organisms draw their essential elements from