The angles marked in the diagram above are measured in degrees. Find x
15o
24o
30o
36o
48o
Correct answer is B
Sum of exterior angles = 360°
2x + 3x + 2x + 3x + 5x = 360°
15x = 360°
x = 360°/15 = 24°
concentration gradient across the respiratory surface
concentration gradient across the respiratory surface B. presence of thin membrane as the respiratory surface
last transportation of absorbed gases
presence of a large surface area in the respiratory organ
presence of a small, dry surface area in the respiratory organ
Correct answer is E
No explanation has been provided for this answer.
Which of the following is the medium of transporting nutrients within unicellular organisms?
Blood
Serum
Protoplasm
Plasma
Lymph
Correct answer is C
No explanation has been provided for this answer.
Which of the following diseases is caused by a deficiency of insulin in the body
Malaria
Diabetes mellitus
Hepatitis
Gonorrhoea
Cholera
Correct answer is B
No explanation has been provided for this answer.
a cellulose cell wall
chlorophyll
a centrally-placed nucleus
a cell membrane
a cell wall
Correct answer is D
No explanation has been provided for this answer.
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