What provides evidence that all life on Earo8 qd 3*wq,bi o:e*wsvth evolved from the same population owqwd *bi,8vooe3s :*q f cells?

  Identify the correct row in the table rj a-49oi- gqhps o-c q8x.gn1iegarding the formation of vesicles.

  Whose experiments disproved sp a++t:mnj vgy8ontaneous generation?

  Which type of isotopes are commonly used in absolute dating of fossils)a 4-wxc5t e qc3sd+xs?

  Which of the following statements are reasons that RNA /ra)5kvt .aw zis believed to be the first genetic mater a)wk5a ./rztvial?
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 apparatudo6q0pxywhl:5:r,k r yf w3i2 s used in the experiments conducted by Miller and Urey.dk, 5wh2:xlyw 63rrqp:iyf 0o


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

  In the early 19th century, vitali/p wyv6;+p7jn 6 8fg hggyukx;sm was a widely accepted theory. This theory sug7ypgwyjf8 ;+g k6un hpv/x6g;gested that organic 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 evidence sy5h+cbn2g:: ty k 0sdn7r ftw+g*x(j to support that the last universal common ancestor (LUCA) could have emerged++sb nh7fr:5:k2 gy n d*jtc xtgs0y(w at hydrothermal vents?

Researchers carried out a similar experiment to Lou(e vx y6otkr ty4te ku.8a3 uqsz/.lqo f)(o0.is Pasteur’s famous experiment disproving spontaneous genk.t6 ft(e(yu )0oo/kxua4orq. l8tyv qs3.e zeration, 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 experiments disproving spontaneous generation we8 fk9f)df* (m,(nnv qqkid x0s:.ge utre replicated by placing broth into vxnkekvf.dfn)qtq,u g 80:i ds( * (m9farious flasks.

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

Below is a diagram of Euglena a photos(fo .l4ns ri zbr:0of)ynthetic protist. It is a living cell which can car4(ns:.l )oo zfif0 rbrry out all the 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.