Podcast
Questions and Answers
Which group of animals has a 3-chambered heart with two atria and a single ventricle?
Which group of animals has a 3-chambered heart with two atria and a single ventricle?
- Fishes
- Birds and mammals
- Amphibians and reptiles (except crocodiles) (correct)
- Arthropods and molluscs
What is the primary difference between open and closed circulatory systems?
What is the primary difference between open and closed circulatory systems?
- The type of vessels involved
- The oxygenation of blood
- The flow of fluid through open spaces or a closed network of blood vessels (correct)
- The presence or absence of a heart
What do all vertebrates possess?
What do all vertebrates possess?
- A 2-chambered heart
- A muscular chambered heart (correct)
- A 3-chambered heart
- A 4-chambered heart
In which type of circulatory system is the flow of fluid more precisely regulated?
In which type of circulatory system is the flow of fluid more precisely regulated?
What is unique about the circulatory system of birds and mammals?
What is unique about the circulatory system of birds and mammals?
What is the primary function of the gills in fishes?
What is the primary function of the gills in fishes?
In which type of circulatory system do blood vessels merge into open spaces or body cavities?
In which type of circulatory system do blood vessels merge into open spaces or body cavities?
What is the primary function of the atrium in the heart of vertebrates?
What is the primary function of the atrium in the heart of vertebrates?
What is common to the circulatory systems of amphibians and reptiles?
What is common to the circulatory systems of amphibians and reptiles?
What is the significance of the single ventricle in the heart of amphibians and reptiles?
What is the significance of the single ventricle in the heart of amphibians and reptiles?
What is the difference between the circulatory systems of fishes and birds/mammals?
What is the difference between the circulatory systems of fishes and birds/mammals?
What is the characteristic of the heart of annelids and chordates?
What is the characteristic of the heart of annelids and chordates?
