A single heart beat involves _____stages.

1. 1. 2
   2. 3
   3. 4
   4. 5

Cytoplasmic strands that extend through pores in adjacent cell walls are known as_____.

1. 1. Pseudopods
   2. Symplasts
   3. Pili
   4. Plasmodesmata

Today the land habitat is dominated by_____.

1. 1. Tracheophytes
   2. Fungi
   3. Gymnosperms
   4. Angiosperms

The point at which there is no net exchange of gases between leaves and atmosphere is known as_____.

1. 1. Neutral point
   2. Parallel point
   3. Competitive point
   4. Compensation point

Carotenoids perform protective function in_____.

1. 1. Plants
   2. Animals
   3. Both of these
   4. All of these

At the induction of action potential opening of Na+ gate with influx of Na+ is a _____processes?

1. 1. Passive transport
   2. Active transport
   3. Diffusion
   4. All of these

Mammals became dominant in_____.

1. 1. Mesozoic era
   2. Proterozoic era
   3. Cenozoic era
   4. Paleozoic era

Polysome is formed during _____process?

1. 1. Translation
   2. Transcription
   3. Secretion
   4. Division

Robert Hooke discovered_____.

1. 1. Cell
   2. Nucleus
   3. DNA
   4. Mitochondria

Fatty acids containing 18 C atoms and a single double bond is_____.

1. 1. Saturated Fatty acid
   2. Oleic Acid
   3. Plamitic acid
   4. Unsaturated fatty acid