How does a marine iguana maintain homeostasis despite ingesting large amounts of salt with its food?
Marine iguanas throw up large amounts of salt.
Marine iguanas pass large amounts of salt through their urine.
Marine iguanas sneeze excess salt out of their bodies.
Marine iguanas sweat a lot to get rid of the extra salt
The correct answer is: Marine iguanas sneeze excess salt out of their bodies.
Marine iguanas are unique among reptiles as they rely on the ocean as their primary source of food, feeding on marine algae and seaweed. These marine plants are rich in salt, which the iguanas ingest along with their food. However, excessive salt intake can be detrimental to their health. To maintain homeostasis and balance their body's salt levels, marine iguanas have evolved a special adaptation.
Marine iguanas possess specialized glands in their nasal passages known as "salt glands." These glands efficiently filter excess salt from the bloodstream and excrete it through the nostrils. This process is triggered by a combination of heat and high salt concentration, which stimulates the iguanas to expel the excess salt by sneezing. The expelled salty fluid is then evaporated from the nasal passages, leaving the iguana with a reduced salt load.
This unique adaptation allows marine iguanas to survive and thrive in their marine environment without suffering from the negative effects of excessive salt accumulation.
How does the human body prevent internal energy levels from becoming too low?
The digestive system transmits feelings of hunger to the brain, which initiates eating.
The nervous system transmits feelings of fullness to the digestive system, which signals metabolism to stop.
The brain transmits feelings of hunger to the digestive system, which initiates eating.
The digestive system transmits feelings of fullness to the nervous system, which signals metabolism to stop
The correct answer is: The brain transmits feelings of hunger to the digestive system, which initiates eating.
When the body's internal energy levels become too low, the brain is responsible for maintaining homeostasis. The brain detects the decrease in energy levels and transmits signals to the digestive system, specifically the hypothalamus, which is responsible for regulating appetite and food intake. These signals trigger feelings of hunger, motivating an individual to eat and replenish their energy stores.
Once the individual consumes food and the energy levels increase, the digestive system sends signals back to the brain to indicate feelings of fullness. This feedback loop allows the brain and digestive system to communicate and regulate the intake of food to prevent energy levels from becoming too low or excessively high.
How does the body react to cold temperatures?
Your body sweats to help it maintain homeostasis.
Your body shivers to make the internal temperature balanced with the external environment.
You body sweats to make the internal temperature balanced with the external environment.
Your body shivers to help it maintain homeostasis.
The correct answer is: Your body shivers to help it maintain homeostasis.
When exposed to cold temperatures, the body initiates several responses to maintain its internal temperature and prevent hypothermia. One of these responses is shivering. Shivering is an involuntary muscle contraction and relaxation that generates heat. It helps to raise the body's internal temperature and counteract the heat loss caused by the cold environment. By shivering, the body increases its metabolic rate, which leads to the production of heat as a byproduct.
Shivering is a mechanism employed by the body to help maintain homeostasis, which is the balance of internal conditions required for optimal functioning. By shivering, the body attempts to restore its core temperature to a normal range and prevent any potential negative effects that may arise due to exposure to cold temperatures.
Which statement describes homeostasis?
It is a process of maintaining an internal state of balance for an organism.
It is how an organism reacts to internal factors.
It is a process of maintaining an external state of balance for an organism.
It is how an organism reacts to external factors.
The correct answer is: It is a process of maintaining an internal state of balance for an organism.
Homeostasis refers to the ability of an organism to maintain a stable internal environment despite changes in the external environment. It involves various physiological processes and mechanisms that work together to regulate important factors such as body temperature, blood pressure, pH levels, and glucose concentration within a narrow range. Homeostasis ensures that the internal conditions necessary for the proper functioning of cells and bodily systems are maintained, allowing organisms to survive and thrive.