Metabolic rates can vary depending on physiological states. The circulatory system and respiratory system play a crucial role in ensuring efficient delivery of oxygen to cells around the body.
The basal metabolic rate (BMR) of an organism can be described as what?
The metabolic rate of an organism at rest
The metabolic rate of an organism during an active period
The metabolic rate of an organism when it is decomposing
In an amphibian heart, how many atria and ventricles are there?
2 atria, 2 ventricles
1 atria, 2 ventricles
2 atria, 1 ventricle
Which group of animals have the simplest vertebrate heart structure?
How do birds exchange gas within their lungs?
They force air into their lungs by a process called buccal pumping
The have parabronchi where air travels in only one direction
They have sacs called alveoli
Which statement best describes the bird and mammalian heart and circulation system?
A single circulatory system with 2 chambered hearts
A double circulatory system with 3 chambered hearts
A double circulatory system with 4 chambered hearts
Which example is not a physiological adaptation that animals have to survive in low oxygen niches?
They have a higher concentration of the protein myoglobin within their muscles
They are nocturnal and only come out at night
They have a decreased heart rate
Which description best fits that of a conformer?
They have a low metabolic activity and some bask in the sun to absorb heat energy
They can withstand extreme differences in their external environment
They have a high metabolic activity and can control their internal environment
Homeostasis is the body’s ability to regulate temperature. Which part of the body controls the body’s temperature?
Which sequence correctly describes the order of events during homeostasis?
Stimulus - Response - Receptor - Effector
Stimulus - Receptor - Effector - Response
Stimulus - Effector - Receptor - Response
Which mechanism best describes homeostasis?
Positive feedback control
Negative feedback control