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The blood transports oxygen from the lungs to the cells of the body, where it is needed for metabolism. The carbon dioxide produced during metabolism is carried back to the lungs by the blood, where it is then exhaled (breathed out)
HT
Question 10. Fiber in some kinds of food is necessary for the digestive system to work normally. We need to eat enough food rich in fiber. The kinds of food rich in fiber are ……10 điểm
A. rice and corn.
B. eggs and milk.
C. fruits and vegetables.
D. meat and fish.
Question 3. Which process(es) can change a material from liquid to gas? A. Only evaporation B. Only boiling C. Evaporation and boiling D. Evaporation, boiling, and melting
D nha
o l m . v n
có người thì nói là đáp án C có người thì nói là đáp án D
Question 9. “Calcium is a ... (1) ... which helps you to grow strong ... (2) .... Calcium can be found in ... (3) ....”. The appropriate words to fill in the blanks (1), (2), (3) respectively are 10 điểm
A. protein, bones, meat
B. protein, heart, milk
C. mineral, heart, meat
D. mineral, bones, milk
Question 9. “Calcium is a ... (1) ... which helps you to grow strong ... (2) .... Calcium can be found in ... (3) ....”. The appropriate words to fill in the blanks (1), (2), (3) respectively are 10 điểm
A. protein, bones, meat
B. protein, heart, milk
C. mineral, heart, meat
D. mineral, bones, milk
Sự biến đổi hóa học là gì?
D. Sự biến đổi từ chất này sang chất khác
Question 8. A material which is NOT an electrical insulator _______.10 điểm
A. does not allow electricity to pass through it easily
B. does not allow heat to travel through it easily
C. allows heat to travel through it easily
D. allows electricity to pass through it easily
B/ banana
d meat