Four fundamental forces
<span>gravitation
electromagnetism
the weak interaction
the strong interaction.</span>
Vertebrates have back bones or spines that give there body support.
Answer:
i think it is friction bcs gravity helps an abject move and friction causes it to slow down
Explanation:
D. Fertilized egg
A zygote is a cell which is a diploid cell in the combination of the spem and egg cell. Furthermore, this cell which came from the parent cell was successfully fertilized at the fallopian tube of the female reproductive system.
A zygote will develop to become an embryo for the next few weeks.
Answer: More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away. But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.
Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify
