maybe cuz of ultraviolet radiation (mars)
If a cow were to fall from space, it would likely burn up upon reentry into the Earth's atmosphere due to the intense heat generated by friction. Even if it were to somehow survive the fall, it would likely not survive the impact with the Earth's surface.
The irregular shape and low density of the Martian moons, Phobos and Deimos, suggest that they were not formed with Mars. Instead, it is more likely that they are captured asteroids that were gravitationally pulled into orbit around Mars.
Mercury has a surface that contains scraps. These scraps are likely remnants of impacts from asteroids and comets that have struck the planet over its history.
No cockroaches are one of the few organisms able to survive nuclear explosions. Scorpions cannot.
The object you are describing is likely a meteorite. Meteorites are chunks of rock and metal that originate from asteroids or comets, which once orbited the sun. When these objects break apart or collide, fragments can enter Earth's atmosphere and survive the journey to the surface, becoming meteorites.
The "Martian canals" originally thought to be evidence of a complex network of waterways were later found to be an optical illusion. These features observed by early astronomers were likely due to limitations in their equipment and interpretation of what they were seeing on the Martian surface.
Adaptation
An example of adaptation is camouflage. What is camouflage? Answer: a camouflaged organism blends into its environment and is more likely to reproduce and survive.
Water cannot be absorbed through the surface of a leaf.
Single-celled organisms would likely fare well. The television show 'Mythbusters' tested and seems to have proved that cockroaches would not survive radiation very well at all. In fact they discovered that flour beetles could and did survive doses of 100,000 Rads (1000 Rads is lethal to a human) with no signs of dying out.
A camel has humps that store fat.
It Is Fitness.
Some organism's are more adapted to their environment so predator's don't see them, so then they survive and they keep on passing their gene's on to the next generation for year's to come.
If an organism's food source disappears, it will likely lead to starvation and eventually death for the organism. Without food, the organism will not be able to obtain the necessary energy and nutrients to survive. This can also disrupt the ecosystem if the organism plays a key role in the food chain.
An adaptation. Adaptations are heritable traits that enhance an organism's ability to survive and reproduce in its environment, increasing its fitness. Through the process of natural selection, organisms with beneficial adaptations are more likely to pass on their genes to the next generation.
Fitness -Apex (Survival of the Fitness)
The organism is likely a member of the kingdom Animalia.