Chimpanzees reproduce sexually, and sponges reproduce asexually. What disadvantage do chimpanzees have compared to sponges? Chimpanzees’ offspring have differences in their DNA.
Chimpanzees require less energy to make offspring.
Chimpanzees reproduce more slowly.
Chimpanzees’ offspring have to fight harder for resources.

Dna is colied into chromosomes in a cell

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.