What provides evidence that alwq k 74zik1j-6 kl5vqol life on Earth evolved from the same population of ce1kkq7 lvw 46-5i qojzklls?

  Identify the correct row in the table regawa5 -kylz,+yi.sk/, t1thmgwrding the formation of vesicles.

  Whose experiments disproved spontkotvg:-yq0*s:m,na ,4 blh quaneous generation?

  Which type of isotopes are comp 9/)nj*epjplm,b:hxjh,65s dyu z5qmonly used in absolute dating of fossils?

  Which of the following statements are7gkn7)kzh p)7ii-t cj smnv1+ reasons that RNA is believed to be the first gevmn -n si j i7)tp)k1+kc77hgznetic 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 useunu z l))k hh.4eg6w6gd in the experiments conducted by Miller)gh u k .lzn)wheu64g6 and Urey.


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

  In the early 19th century, vitali +ooinse, bm09r w5v2rp2rps*e/;w gusm was a widely accepted theory. This theory su5;iws son90oubrwer/vp2 m,pr+ e 2g*ggested 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 to support apjte9x b34 f3y b; 6w)w8ahn4bvldb3that the last universal common ancestor (LUCAp9 axfwb e 8 lw33jay6bnb4;) 3dv4thb) could have emerged at hydrothermal vents?

Researchers carried out a similar experiment to Loup ,8;avgsmdy ykk.37k is Pasteur’s famous experiment disproving spontand 3sag8mkykv . 7,kpy;eous 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 experiments disproving spontaneous generation were repkdz(i i +j (1okmg0ct9licated 0dj+(i1koci (kg t mz9by placing 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 is a living cell whi()4tg4 hakecm ch cah(4mga 4t ec)kn carry 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.