The machine found no kidney stones and the patient is healthy
Large floral are used in the reproduction in pteridophytes
Answer:
Explanation:
The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar and share common traits.
The correct answer is (b) Circulatory system
The circulatory system transports the oxygen throughout the system. The deoxygenated blood is carried from other parts of the body to the lungs and the exchange of gases takes place. The oxygenated blood from the lungs is carried to other parts of the body. Only 1.5% of oxygen is transported through this system other 96% of the oxygen is transported by combing with pigment called hemoglobin. This hemoglobin also an important of circulatory system that helps in purifying the blood.
Answer:a. gastropods, bivalves
Explanation:mollusca is a phylum which consist of organisms whose body are bilaterally symmentrical (can be dived into two equal mirror part through a unique plane)and segmented, except the gastropods which are asymmetrical.
Mollusca possess a ventral body wall and is modified into a muscular foot for lomotion.they use radula for feeding , except the bivalves which are filter feeders
They possess gills/ctinedia for respiration.they may also use lungs or body surface for respiration.
Snail is an example of gastropoda.they are the most populous and diverse class of mollusca.other examples include slugs, periwinkle etc.
Oysters is an example of bivalva.they have two calcerous valves held together by a ligament.they have no head and their body is compressed in their shell.examples oysters and clams.
