Food chains show energy transfer between organisms. The size of a food chain can vary, yet there is a limit to the number of
levels that a food chain can reach. Why is there a limit to the number of levels that a food chain can reach?
finiti

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Will mark you as ! keiko’s teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most closely resembled prokaryotes. which organelles should keiko mark? * the first image is the question and the second image is some information to you answer the !

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?