An organism naturally adapts to it's environment. Organisms have to adapt to survive to live in a certain environment. Their outside appearance and physical features depends on how they get their food, how they protect themselves from predators, and how they keep their body warm or cold in that climate. This kind of goes with the idea of natural selection. Natural selection is when animals adapt to changes over time by reproducing and creating genetic variations in their offspring. For example, if there are two types of rabbits. One rabbit is black and the other is white. These rabbits live in a very cold place where there is a lot of snow. The predators have been eating most of the black rabbits since, they are easily seen. The white rabbits will keep on reproducing, while the black rabbits population will decrease. After a while the black rabbits will be no more and a new generation of white rabbits will be able to survive and thrive.
Answer:
This could represent something like sliding a small rock across an icy lake.
Explanation:
A 20N force of gravity (weight), and 20N normal force exerted back onto the object imply it is on the ground and has no vertical motion. There is a net force of 0N
An 80N force to the left and a 5N force to the right create a net force of 75N to the left. This means that there is a force acting on the object that makes it accelerate to the left. 80N represents a push or pull force and 5N represents a relatively small frictional force due to the object being slid on a surface such as steel or in this case ice.
Answer:
1st law known as low of inertial
2nd law of acelaration and force relationship
3rd law of action and reaction
Answer:
1) Used in optical instruments such as telescopes.
2) Used to form mirages
Explanation:
1) Perhaps the simplest example of this is the astronomical refractor telescope with a right-angle eyepiece holder. Astro scopes mostly point at things high in the sky, but it is inconvenient to place your eye low to look up through the scope, so the light path is bent 90 degrees just before the eyepiece. This can be done with a mirror, but using a simple 45 degree prism (internal angles 45, 45, and 90 degrees) will do the 90 degree bend more efficiently.
2) So when a light pass from cold air to hot air light tends to bend from its path which is known as refraction. As the light get refracted it reaches to a point where the light tends to form 90 degree angle.