Answer:
B:The formation of two or more species from a common ancestor.
Explanation:
The force of gravity is a major force that created the earth. As rocks and ice clumped together as they spun around the newly formed star (sun), the force of gravitational pull increased and attracted more debris (rocks and ice). The clumps of rocks, debris, and ice, therefore, grew into a planet.
Another is electromagnetic force. The spinning currents in the outer core of the earth create a dynamo effect that forms a magnetic field around the earth. This shields the earth from the solar storms of the sun hence protects life and the atmosphere.
Weak nuclear force is responsible for maintaining the heat of the earth’s interior which is critical for maintaining the dynamo effect of the outer core so the earth is protected by its magnetic field.
Answer:
D 2 million years is the answer
Explanation:
There are many cells in multi cellular organisms. During the development of a multi cellular organism, cells usually become differentiated, so that they can perform different functions. Differentiation means to become specialized in carrying out a particular function. A tissue is formed when a group of specialized cells of similar structure and functions come together. Tissues can be solid or liquid. An example of a solid tissue is muscle while blood is an example of a liquid tissue. <span />
