Biological science

Where are histamine-secreting cells found?

• Nervous tissue

• Connective tissue

• Areolar tissue

• None of the above

What is collagen?

• Fat

• Protein

• Carbohydrate

• None of the above

What types of motor proteins do you know?

• Myosin, kinesin

• Albumin, creatine

• Casein, bilirubin

• Lipase, maltase

How to separate the jelly beans?

• Filtration method

• Sieving method

• Hand-picking method

• Floatation method

Water and oil could be described as...

• a heterogeneous mixture in which oil floats above water

• a heterogeneous mixture in which water is lighter than oil

• a homogeneous mixture

Soil is important in life .

• True

• False