During ecological succession:

1.	gradual and predictable change in the composition of species occurs in a given area.
2.	establishment of a new biotic community is very fast in its primary phase.
3.	the number and types of animals are constant.
4.	changes lead to a community that is in equilibrium with the environment and is called a pioneer community.

The body cells in cockroaches discharge the nitrogenous waste in the hemolymph mainly in the form of?

1. Ammonia

2. Potassium urate

3. Urea

4. Calcium carbonate

Which of the following biomolecules have a phosphodiester bond?

1. Fatty acids in a diglyceride

2. Monosaccharides in a polysaccharide

3. Amino acids in a polypeptide

4. Nucleic acids in a nucleotide

The UN Conference of Parties on climate change in the year 2012 was held at?

1. Durban

2. Doha

3. Lima

4. Warsaw

Arrange the following events of meiosis in a correct sequence:
I. Crossing over 
II. Synapsis 
III. Terminalisation of chiasmata 
IV. Disappearance of nucleolus

Root pressure develops due to?
1. Active absorption
2. Low osmotic potential in Soil
3. Passive absorption
4. Increase in transpiration

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?

1. Fibrinogin in plasma

2. Serum albumins

3. Haemocyres

4. Serum globulins