What provides evidence that all life on Earth evolvedw-ku8mv5 lx j0 from the same population of wm8 5vj0ku- xlcells?

  Identify the correct row in the table regarding the formation of e(z83nlx11 +zid zw4zga ys(o vesicles.

  Whose experiments disproved spon/ms4a hkt4c3oait,wu*ak na-+q 3am5 taneous generation?

  Which type of isotopes are commonly used in absolute msl 3jm4pg y+gb79dr;g0dfi) dating of fossils?

  Which of the following statements are reavd yi qwho2r (d2ut8: a*fnz i0nb-5o3sons that RNA is believed to be the first genetic mater8f qzda2nb0*do(wt5:h3u2o-rni yi vial?
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 exp6jr7q+c e ant.+-a dhjj)cai/eriments conducted by Miller and Ureyrjc-qt hieana c.dj+) 7+ a6/j.


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

  In the early 19th century, vitalism was a vqjb77p ;6daw+ ra1 hk.3xtm*qrkj1s widely accepted theory. This theory suggested that organic compounds, those found in living organisrqj7 asb + k* kat3jxh;p.wq7d 1rm1v6ms, 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 evidence to support that theo10ox 7b ,fnqp.d f(ml last universal common ancestopql dn0.mf 1f7o,x( bor (LUCA) could have emerged at hydrothermal vents?

Researchers carried out a similar experimlrwo t+v2v6(e5t jjy.bl(m 9 sent to Louis Pasteur’s famous experiment disproving spontaneous generation, um.r 6v9j+( 2b(sl t e5wlovytjsing 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 experiment0ka;cqc 9djf2op.o1-e m fcy6 s disproving spontaneous generation were replicated by placing b2.f ep;dyafo0o jcq 1m6 9ck-croth into various flasks.

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

Below is a diagram of Euglena a photosynthetic protist. It is a living cell xwo h(h 9o,knm;hb0 m4which can carry out all thok49nm w,(m;hhb 0 xohe functions 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.