Answer:
An arthropod is an invertebrate animal having an exoskeleton like a crab and a centipede.
Answer:
A mutation that cause changes to short stretches of nucleotides. These mutations affect the specific genes that provide instructions for various functional molecules, including protein . changes in these molecules can have impact on any number of an organism's physical characteristics
No if it is squared it is a parabola. To be linear it has to be. A straight line
Answer:
According to the current fossil record, scientists believe that the life on earth began about 3.5 billion years ago.
