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Science
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The kidneys in human beings are part of the system for:
Xylem in plants is responsible for:
Autotrophic nutrition in green plants requires:
The breakdown of pyruvate to carbon dioxide, water, and energy takes place in:
Where does fat digestion mainly take place in humans?
Saliva helps digestion because it contains:
Yeast can respire anaerobically to produce:
Alveoli are suitable for gas exchange because they:
A deficiency of haemoglobin mainly reduces the blood's ability to carry:
Double circulation means:
Translocation in phloem requires energy because:
In a nephron, Bowman's capsule mainly:
Which option is a correct plant excretion method?
In the two-bell-jar experiment, potassium hydroxide is placed beside one plant to:
A stomatal pore closes when:
Assertion: Villi in the small intestine are richly supplied with blood capillaries. Reason: Villi complete digestion of food.
When oxygen is insufficient in human muscle cells, pyruvate is converted into:
Which vessel carries deoxygenated blood away from the heart?
Which statement about lymph is correct?
Which set is normally reabsorbed from nephron filtrate into blood?