The radial symmetry is found in the animals of _____.

1. 1. Cnidaria
   2. Porifera
   3. Protozoa
   4. None of these

Villi and microvilli increase _____.

1. 1. digestion
   2. absorption
   3. assimilation
   4. blood pressure

Reflex actions below the neck are under control of _____.

1. 1. Brain
   2. Hypothalamus
   3. Spinal cord
   4. All of these

Which of the following is present in the underground parts of the plants and stored food?

1. 1. stem
   2. leucoplast
   3. chromoplast
   4. chloroplast

Ribosomes and DNA are also present in _____.

1. 1. endoplasmic reticulum
   2. mitochondria
   3. golgi complex
   4. lysosomes

Blubber is a thick layer of fat which is present in _____.

1. 1. Marine Mammals
   2. Flying mammals
   3. Fresh water mammals
   4. Terrestrial mammals

A group of similar cells that perform a specific function is_____.

1. 1. Organelle
   2. Organ
   3. Tissues
   4. Organ System

The scientific name of onion is _____.

1. 1. Rana tigrina
   2. Aspergillus
   3. Allium cepa
   4. None of these

Which one of the following is not the characteristic of the plants included in psilopsida?

1. 1. Aerial branches have veinless outgrowths
   2. Gametophyte is colourless
   3. Rhizoids bear Rhizome
   4. They have mycorrhizal association

Which of the following chemical component has the greatest contribution in the total mammalian cell weight?

1. 1. Water
   2. Proteins
   3. Lipids
   4. Carbohydrate