Q: In which organs does gas exchange take place between blood and air? Choices: - liver and spleen - kidneys - esophagus and larynx - lungs A:
lungs

(Question)
Q: Designed to exchange materials, what spongy structure consists of membranes and blood vessels from both mother and embryo? Choices: - endometrium - uterus - umbilicus - placenta A:
(Answer)
placenta

Ques: Q: What chambers are responsible for pumping blood out of the heart? Choices: - vacuoles - cells - valves - ventricles A:
Ans: ventricles

(Q).
Q: The name of a monatomic cation is simply the name of the element followed by this word? Choices: - amine - laser - bond - ion A:
(A).
ion

Ques:Q: What is the general name for a solid material that is formed via a natural process? Choices: - chemical - gas - plasma - mineral A:

Ans:mineral

Question: Q: Echinoderms have a unique system for gas exchange, nutrient circulation, and locomotion called the water vascular system. the system consists of a central ring canal and radial canals extending along each arm. water circulates through these structures allowing for gas, nutrient, and this? Choices: - water evaporation - nerve exchange - cell exchange - waste exchange A:
Answer:
waste exchange