My Heart
What are the four chambers of the heart?
The right atrium, right ventricle, left atrium, and left ventricle.
What is the focus of a microbiologist's studies?
Microbiologists study microorganisms, including bacteria, viruses, fungi, and protozoa.
Explain the importance of macroinvertebrates in stream ecosystems.
Macroinvertebrates serve as indicators of water quality and are vital in the food web, breaking down organic materials.
Describe the pathway of blood from the body to the heart.
Blood returns to the heart via the superior and inferior vena cava into the right atrium.
What is entomology?
Entomology is the scientific study of insects.
Describe the function of the left ventricle.
The left ventricle pumps oxygenated blood to the body through the aorta.
Define the role of an ecologist.
Ecologists study the relationships between organisms and their environments, including ecosystems and biodiversity.
Describe the impact of pollution on stream biodiversity.
Pollution can lead to a decline in species diversity, disrupt food webs, and harm aquatic organisms.
What is the function of the atrioventricular valves?
Atrioventricular valves prevent backflow of blood from the ventricles into the atria during contraction.
Order Hymenoptera have what major characteristics?
3 main body segments (Head, Thorax, Abdomen), 2 pairs of wings, and 3 pairs of legs
What is the role of arteries?
What distinguishes a zoologist from a botanist?
Zoologists study animals, while botanists focus on plants.
How do stream ecosystems respond to seasonal changes in flow?
Stream ecosystems may experience changes in species composition, nutrient availability, and habitat structure based on seasonal flow variations.
Explain how oxygenated blood travels from the lungs to the heart.
Oxygenated blood returns from the lungs via the pulmonary veins into the left atrium.
Describe the role of pollinators in ecosystems.
Pollinators facilitate the reproduction of flowering plants, which is essential for food production and biodiversity.
What structural adaptations allow the heart to maintain a unidirectional flow of blood?
The presence of valves (atrioventricular and semilunar valves) ensures unidirectional blood flow.
Describe the work of a conservation biologist.
Conservation biologists work to protect and restore biodiversity and ecosystems, often through research and policy development.
Why are some species found in almost all bodies of water, and some species only found in a select few in the same area?
Pollution and Disturbance Tolerance, Hardiness, Water Health and Quality, etc.
What is the significance of the sinoatrial node?
The sinoatrial node acts as the heart's natural pacemaker, initiating the heartbeat.
What are the ecological impacts of invasive insect species?
Invasive insects can disrupt local ecosystems, outcompete native species, and cause economic damage.
What structures take blood to and from the lungs?
Pulmonary Arteries and Pulmonary Veins.
How does a field biologist differ from a laboratory biologist?
Field biologists conduct research in natural environments, while laboratory biologists perform experiments in controlled settings.
What makes an indicator species?
An organism with low tolerance to human disturbance and pollution that has specific requirements for survival, which indicate the health of an ecosystem.
Which atrioventricular valve is on the right side of the heart?
Tricuspid Valve
Explain the process of metamorphosis in insects and its significance.
Metamorphosis is the developmental process in which insects transition from larva to adult, allowing for specialization and reduced competition between life stages.