What provides evidence that all life on Earth evolved from t0foms mbp :w,3he same population of ce : ms,0pw3mobflls?

  Identify the correct row in the table regarding the formation of ves -k71k zmat0 4ckknn)qb6 m.ynicles.

  Whose experiments disproved spontaneous generation?lww8vm u62u;ch7q 9 sr /ocrusy/vm5,

  Which type of isotopes are commonly used in absolute rxk5y+ hq:6 xndating of fossils?

  Which of the following statements are reasons that RNA is believed to be)nvp bqw mbp gv7o ou d-8f3-)a88nw2n the first genetic mata7n38 q)82-mobgvbw)u np d powv8f-nerial?
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 expebbo:5r 6:2 av4c7 vegfrygo.xriments conducted by Miller4v eg6 y:a7fcb.2bg:5roxv ro and Urey.


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

  In the early 19th ce9r5se(,(ut +a3sgxfwf6z h k hntury, vitalism was a widely accepted theory. This theory suggested that 9,xwa 5k hhrt(s +ugf6(ezfs3organic 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 to support t (iyk/ me ;m2g;9emc*2zmjyl rhat the last universal common an; e;2 /yymgmimz(jl *2rm9ekccestor (LUCA) could have emerged at hydrothermal vents?

Researchers carried out a similar experiment to Loy whzjuq 0m *:x0ej28wuis Pasteur’s famous experiment disproving spontaneous generation, using the set upx y:m* 2eh0jq0uwzj w8 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 experimv rzgm1 k ;8z57popo.uents disproving spontaneous generation were replicated by pkp5rpm.;v 7o zuog z18lacing broth 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 4c 0 (bcs8pvcxyi 3gv+*ptf8nis a living cell which can yi4 gc83(ncv p0 +sf8btcx *pvcarry 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.