Which one of the following animals has two separate circulatory pathways?

1.	Frog	2.	Lizard
3.	Whale	4.	Shark

Which of the following events is not associated with ovulation in human females?

1. Decrease in Oestradiol

2. Full development of Graafian follicle

3. Release of secondary oocyte

4. LH Surge

Most animals that are in deep oceanic water are?

1. Primary consumers

2. Secondary consumers

3. Tertiary consumers

4. Detritivores

If you suspect a major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?

The structures that help some bacteria to attach to rocks and/or host tissues are?

An increase in the concentration of the toxicant at successive trophic levels is known as:

1. Biomagnifications

2. Biodeterioration

3. Biotransformation

4. Biogeochemical cycling

Body having meshwork of cells, internal cavities lined with food filtering flagellated Cells and indirect development is the characteristics of phylum?

1. Coelenterata

2. Porifera

3. Mollusca

4. Protozoa

The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements are involved in this reaction?

1. Manganese and chlorine

2. Manganese and potassium

3. Magnesium and molybdenum

4. Magnesium and chlorine

The primary dentition in humans differs from permanent dentition in not having one of the following types of teeth:

1. Canine

2. Premolars

3. Molars

4. Incisors

Coconut water from a tender coconut is?

1. Immature embryo

2. Free nuclear endosperm

3. Innermost layers of the seed coat

4. Degenerated nucellus