Blood platelets are important because they are
amoeboid and nucleated
produce antitoxins
produce antibodies
digest harmful bacteria
release thrombin for blood clothing
Correct answer is E
No explanation has been provided for this answer.
The vein which returns blood from the head and arms to the heart is called
aorta
inferior vena cava
superior vena cava
pulmonary vein
pulmonary artery
Correct answer is C
No explanation has been provided for this answer.
The function of lymph nodes is to
supply oxygen
filter out bacteria
form red blood cells
supply amino acids
supply simple sugars
Correct answer is B
No explanation has been provided for this answer.
Partially digested food ready to leave the stomach is referred to as
chyme
curd
glycogen
paste
roughage
Correct answer is A
No explanation has been provided for this answer.
If calcium is deficient in food this may cause
anaemia
retarded growth
sterility
goitre
beri-beri
Correct answer is B
No explanation has been provided for this answer.