Question : Which of the following is not among the main classes of algae?

Option 1: Chlorophyceae

Option 2: Rhodophyceae

Option 3: Phaeophyceae

Option 4: Gymnosperms

Question : In which of the following classes can we put Adrenaline?

Option 1: Hormone

Option 2: Enzyme

Option 3: Protein

Option 4: Fat

Question : Direction: Which one of the given responses would be a meaningful order of the following?

1. Absorption

2. Digestion

3. Nutrition

4. Excretion

Option 1: 3, 1, 2, 4

Option 2: 2, 1, 3, 4

Option 3: 3, 4, 2, 1

Option 4: 3, 2, 1, 4

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
$\frac{1}{2}, \frac{3}{4}, ?, \frac{5}{4}$

Option 1: 1

Option 2: $\frac{1}{4}$

Option 3: $\frac{3}{4}$

Option 4: $\frac{2}{3}$

Question : Syrinx is the voice box in:

Option 1: Amphibians

Option 2: Reptiles

Option 3: Birds

Option 4: Mammals