Imagine you are outside on a hot summer day, and the temperature rises to 106°F. In an attempt to cool down, you notice that your body immediately starts producing sweat. You decide to go back inside with the air conditioning on, and notice that you stop sweating after a short period of time.

Identify which two body systems are interacting in this scenario and explain their roles in maintaining homeostasis.

When the skin comes in contact with an irritant, receptors in the skin send signals to the spinal cord. The signal is then sent to the brain for processing, and the individual begins to scratch the affected area.

Which systems are most likely interacting when a person experiences itching caused by a skin irritant?

As a runner begins to run a race, his or her respiration rate will increase. The runner begins to breathe deeper and at a rapid rate. In addition, the heart beats more quickly. This will result in more oxygen delivered to the muscle cells. Lastly, the skin starts to sweat, allowing body temperature to cool.

Which four body systems interact when someone participates in a race?

Strep throat is caused by a pathogen (bacteria) known as Streptococcus pyogenes. Whenever someone is sick with strep, white blood cells are transported through arteries to your throat, where they can fight and kill the invading bacteria, stopping the infection from spreading.

How do the two body systems described above interact to keep you from getting sick?

Sex determination as an embryo develops involves many body systems. A partial list of the process is shown below.

Which two systems are interacting in the diagram above to help maintain homeostasis?

Based on the diagram above, which systems are involved with maintaining homeostasis by regulating your body temperature?

Select FOUR correct answers.

Three-banded armadillos can be found in Bolivia, Brazil, Paraguay, and Argentina. Armadillos are the only mammal covered by a "shell". This shell is different than that of a turtle shell in that the armadillo's shell is made of bony plates covered by thickened, hard skin.

In order to protect themselves from predators, the three-banded armadillo will curl into a ball. This shields their soft underbelly from attacks.

Which body systems assist the three-banded armadillo in protection against predators?

Select TWO correct answers.

The diagram below represents how body temperature changes over time.

Sweating and shivering occur at different times and are regulated because...

The Emerald Jewel Wasp has the ability to enslave cockroaches by stinging their brains and injecting venom into them. The wasp then uses the antenna of the roach to direct its movement into a chamber, where it lays a single egg on the relaxed roach and seals it inside with pebbles.

Which two systems is the Jewel Wasp targeting as it takes control of the cockroach?

Acne vulgaris is a self-resolving skin condition where there is a blockage of hair follicles in the skin. This causes an increase in bacteria. To help prevent an infection, many white blood cells begin to rush to the area, resulting in large, white-appearing pimples.

Which two systems are interacting in this scenario?

Which systems are interacting to maintain homeostasis based on the diagram?

Select THREE correct answers.

Part B

Which statement BEST supports the answer to Part A?