Answer:
Two types of orientation behavior are as follows:
Taxis behavior:
This is a type of orientation behavior that mainly occur in response towards the external stimulus. Taxis may be positive (movement towards the stimulus) or negative ( movement away from the stimulus). Different types of taxis behavior are phototaxis, aerotaxis, chemotaxis and magnetotaxis.
Kinesis:
Kinesis may be defined as a type of orientation behavior that can change the complete movement or orientation of the organism. Kinesis is a random movement and organism can move in either direction. Different type of kinesis are klinokinesis and orthokinesis.
Spray
drying is a process in which a liquid containing dissolved or suspended solids
is sprayed through a nozzle into a chamber in which hot air is being blown into
at the same time. As the nozzle releases small drops of the solution, it comes
in contact with the hot air and the moisture content of each droplet is
removed. This way, the liquid is turned to powder form which moves to a conveyor belt at
the bottom of the chamber.
Answer: A compound is a substance in which two or more elements are combined together chemically.
Explanation: Elements present in a compound are always in a fixed proportion and can be separated only by a chemical method. For example, water is a compound composed of hydrogen and oxygen atoms in the ratio of 2:1. The chemical formula of water is H2O.
This question isn't really finished, but bacterium are unicellular prokaryote.
I hope this helps?.. :S