What provides evidenc sd784j*edo rie that all life on Earth evolved from the same population of cer8odsi*7jd4e lls?

  Identify the correct row in the table regarding the formation of vesicld) agw h3t0v/.6d* c8u :p6tcrgkv oiqes.

  Whose experiments disprovedzsd6 .7c.jxb;;kaljq qwj k3 ao v,.1v spontaneous generation?

  Which type of isotopes are coi 4 a;gt/t9hrkmmonly used in absolute dating of fossils?

  Which of the following statements are reasons that R7+jdb 7zjoj bqydwa789y y9r8NA is believed to be the firs jb9j78ybo7dayd9w jq7y+z 8r t genetic material?
I. RNA can form spontaneously when nucleotides are present
II. RNA contains ribose as its sugar
III. Miller demonstrated that organic molecules could be produced from a mixture of gases under conditions that simulated early Earth

The diagram below shou oxx7)4 l jwh6d.zl,gws the apparatus used in the experiments conducted by Miller and Urex 6 xl4dou.g7,)zhwjly.


Describe how this experiment showed that the origin of life was possible on early Earth.

  In the early 19th century, vitalism was a widely accepted theory. Thkltw j1t442nv is theory suggested that orgvltjw n41k4t2anic compounds, those found in living organisms, could only be produced through a "vital force" present in living matter.

What was the role of urea in falsifying the theory of vitalism?

  Which of the following is not evid4arr 2onhs6(.txxzp,f l1dc)ence to support that the last universal common ancestor (LUCA) (ft 4ha,sn62 .o 1)rcdxlpzrxcould have emerged at hydrothermal vents?

Researchers carried out a similar experiment to Louis Pasteur’s famous experud:4p-6e k a1khalf3/yij8cv iment disproving spontaneous generation, using the set up belowd4lk ha1euafyc:6/ kv i8- p3j at 30°C.



1.Outline the theory of spontaneous generation.

2.1.State two variables that must be controlled in this experiment.

2.2.Explain why it is important to have controlled variables in this study.

3.1.State the letters of three flasks which would show signs of decomposition of broth.

3.2.Explain your answer to part (i).

4.Suggest, with reasons, how the results of the study would differ if the flasks were incubated at 4°C.

  Louis Pasteur's famous experim9prw6k j*ib k,ents disproving spontaneous generation were replicated by placing broth into vari6,k 9b jrk*wpious flasks.

Which two flasks would show the presence of microorganisms in the results?

Below is a diagram of Euglena a photosynthefolh),7o- goew 2er9v3bc6a m tic protist. It is a living cell which can carry out all the functions of llme ob,o7ch orf aw 3)9-vg6e2ife.

1.1.State which function of life the flagellum is adapted for.

1.2.State which function of life is enabled by the contractile vacuole.

2.Outline why viruses are not regarded as living organisms.

3.State two main principles of the cell theory

4.Explain how the properties of phospholipids mean they naturally form vesicles when in aqueous solution.

5.Explain how the formation of vesicles was important in the evolution of cells.