Geological activities have distributed Earth’s resources, including energy resources, unequally around the world. What is the original source of energy on Earth?

Nerve cells are specialized to respond to stimulitrue or false?

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.