Answer:
Since marine life can only see blue, n creature would have evolved anything but blue colors because that would not have helped their survival
Explanation:
1.Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills either on side of the pharynx.
2.Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries.
3.The colour is red
4. A Gill filaments project from each arc between the dorsal upper and ventral lower surfaces of the filaments.
Human Immunodeficiency Virus causes HIV
Varicella Zoster Virus causes chicken pox
Answer:
Option B, 
Explanation:
Given-
The average surface area of one foot pad of an elephant is 
Weight of an Asian elephant is 
newton
As we know, pressure is equal to total weight divided by total area of the surface on which it is concentrated.
Thus, pressure on one foot pad of elephant is 
Hence, option B is correct answer
True. Many innovators
and inventors have used new scientific methods to develop and improve
communication and transportation devices in many ways. They were able to either make them faster or
more fuel efficient. They have also
given rise to new ways to communicate such as the internet and have developed
devices that make it easier for people to come together.
