A sponge of Antarctica which is more than a meter tall is_____.

1. 1. Euplectella
   2. Scolymastra joubini
   3. Spongilla
   4. Leucoselenia

One cubic yard is equal to _____.

1. 1. 0.723 m
   2. 0.788 m
   3. 0.741 m
   4. 0.765 m

Shell of egg is leathery in appearance in_____.

1. 1. Amphibians
   2. Birds
   3. Prototherians
   4. Reptiles

Locomotory structures are not found in which of the following group?

1. 1. Apicomplexans
   2. Amoebas
   3. Zooflagellates
   4. Ciliates

All of the following are blood clots except_____.

1. 1. Atheroma
   2. Thrombus
   3. Embolus
   4. Hematoma

If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction_____.

1. 1. increase in concentration of substrate
   2. increase in concentration of enzyme
   3. increase in pH
   4. increase in temperature

First time crossing over was observed in _____.

1. 1. 1811
   2. 1927
   3. 1990
   4. 1911

Which of the following plays the major role in providing support to young herbaceous parts of the plant?

1. 1. Living cells of cortex and pith with higher turgor pressure.
   2. Living cells of epidermis with higher turgor pressure.
   3. Collenchyma cells
   4. All of these

_____are the first group of invertebrates which have developed a closed circulatory system.

1. 1. Nematods
   2. Arthropods
   3. Molluscs
   4. Annelids

The most important photosynthetic pigment is _____.

1. 1. Chlorophyll a
   2. Chlorophyll b
   3. Xanthophyll
   4. Carotenes