What provides evidenq/ji6j/xb j /rce that all life on Earth evolved from the same population of celj xj//jq/b6 rils?

  Identify the correct row in the 8ufy/,n2mbvd dk7 69me di2sl table regarding the formation of vesicles.

  Whose experiments disproved spontaneous generation?k // .i 8ysv+xein2vo (yk8ki0(iyiik

  Which type of isotopes are commonly used in absolute dating ofo7 ek6 j,jg8q06cge 9br-t fwq fossils?

  Which of the following statements are reasons that RNA is believed d.:3 jilr4i cato be the first ge3rd4i .ic lja:netic 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 shows the apparatus used in the experiments 5h/59i lezk4/gr ehqs conducted by Miller and Ure4gl qk zi/9/h5rhee5sy.


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

  In the early 19th cent o0vr)b ci 9vztsf/7o8zbx7 x)ury, vitalism was a widely accepted theory. This theory suggested that organi bvzxft b089zs7rx/i7o))oc vc 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 no8 mfza jjlu8fx,9l.y7 t evidence to support that the last universal common ancestor (LUCA) could have emfyl79xl, u mf z8.ajj8erged at hydrothermal vents?

Researchers carried out a similar experiment to Louis Pasteur’s famous expeq lsfx:s cjmn7r0fy0g6 rnwhm-44h64j h4 2qqriment disproving spontrg0 jnx- m4cqlm:ywhh644qf4 0 ns7sqj26 hfraneous generation, using the set up below 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 exper5:71yea ivxtq9hay 3oiments disproving spontaneous generation were replicated by placing broth into various flasksy71 9y5ae aiqhv:ox3 t.

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

Below is a diagram of Euglena a p:ol7k,hmr0+(n phn 7*aw do7n5pqeb whotosynthetic protist. It is a living cell which can carry out all the fhlh:en, a7 mow7q * wok7p+dr50p(nnbunctions of life.

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.