If an outdoor runner develops a headache, feels tired, and has an elevated heart rate, what is the most probable cause?

A. Insufficient calories

B. Overhydration

C. Dehydration

D. Lack of protein

How are earthquakes and volcanoes related

The area of shoreline that is ultimately exposed and submerged is the

7. How do our other senses - - taste, smell, touch and hearing - - influence communication within the body? Provide an example for each sense

What is the most common method of bone formation? is it a. endochondral ossification or b. intramembranous ossification?

The offspring of two koalas develops a genetic disease. When scientists studied the parents' DNA, they found that both parents carried harmful recessive genes passed down from the exact same lineage.

Which of the following could describe a population that is decreasing in size

Which creature cannot survive in the presence of oxygen? Give Examples. What does the creature need to survive instead of oxygen?

Why nitrogen must cycle through an ecosystem

How many cell types are present in your groups set of organisms?

Which of the following is the functional unit of a myofibril? a. sarcomere b. myofilament c. sarcolemma d. endomysium