Biology questions
20584 published questions with worked solutions.
- In veins, valves are present to check backward flow of blood flowing at
- The mammal with nucleated RBCs is
- Absolute refractory period of heart is during
- Blood vessels which bring deoxygenated blood from the muscles of heart are
- Heart attack is also called [MHTCET 2023]
- During sinus arrhythmia _________. [MHTCET 2023]
- Atrial systole lasts for ______ in cardiac cycle. [MHTCET 2023]
- Stimulation of RBCs production is by the hormone ________. [MHTCET 2022]
- Which is NOT the function of lymph? [MHTCET 2022]
- The increase in blood flow to heart stimulates secretion of [MHTCET 2022]
- Heaviness with severe chest pain which may disappear with rest indicates [MHTCET 2022]
- Which of the following animal has enucleated erythrocytes? [MHTCET 2021]
- Which of the following produces erythropoietin? [MHTCET 2021]
- The functioning of circulatory system in human was first discovered by [MHTCET 2021]
- Which of the following is correct for the circulatory system of cockroach? [MHTCET 2021]
- The important function of lymph is to [MHTCET 2021]
- In terms of descending order of percentage proportions of leucocytes in human blood, which one is correct? [MHTCET 2020]
- Which blood vessels carry blood from different parts of your body to the heart? [MHTCET 2020]
- Deposition of cholesterol in arteries is called [MHTCET 2020]
- The difference between systolic and diastolic pressure is [MHTCET 2019]