Many seeds are not able to germinate unless they are exposed to ____________.

The embryo grows rapidly, rupturing the covering layers and allowing the __________ to emerge.

• Radicle is the part of an embryo which forms root system in seed germination.

______________ forms the shoot system in seed germination.

• Plumule is the shoot making part in seed germination.

________________ is the basic process by which various plant species develop from a single seed into a plant.

• Germination of seed is resulted into formation of a plant.

If the soil is loose and has more holes, then it is said to hold a good amount of __________.

• Ploughing is done before sowing seeds so that the soil can hold more amount of oxygen.

_______________ aids as the dissolved oxygen for the growing embryo.

• As water contains oxygen molecule along with hydrogen it can provide oxygen to an embryo.

After imbibition, the activation of ____________ starts the growth process.

• Enzymes are activated to start growth after imbibition.
• Imbibition is a type of diffusion which occurs in liquids.

The embryo grows rapidly, rupturing the covering layers and allowing the ___________ to emerge.

• Embryo allows radicle to emerge as it is a Root making part of a seed.

_________ aids by giving protoplasm with the essential hydration.

• Water aids protoplasm to give hydration.

Predators are more likely to target ___________ birds in a species.

Birds use colors and patterns to ___________ their own species.

Colors can help birds ______________ themselves from predators.

______________ plumage may be worn for the full spring and summer in certain species, while it may only be worn for a few weeks in others.

___________ is a bird with a rare but not unheard-of plumage variation, such as very light or very black plumage, which is commonly a sign of leucism or melanism.

Pick the odd one out.

Melanism is the only genetically programmed plumage coloration system that is controlled directly at the cellular level.