What provides evidence that all life on Earth 7a xhy: aq:qt58t*pfrevolved from the same population of cells?*:t:5ap axt87hqr fy q

  Identify the correct row in the table.x ;zj1dcf 1uv regarding the formation of vesicles.

  Whose experiments disproved spontane1wf.o1 n5qfoa5u *n mfous generation?

  Which type of isotopes are commonly used in absolute d 7q/gvkv f uqw46aho/3ating of fossils?

  Which of the following statements are reasons that RNA is believed to be the4 tw6pplhe7;8qfugqdb+l-kz+ n8w :o first genp8 wk l+4wd6f7lzuqn ;bet+h:p- ogq8etic 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 expeqc ft- 2hu9njs:9:xyjriments conducted by Miller 2qxtsuj: hf-: nycj99and Urey.


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

  In the early 19th century, vitalism was a widely accepted theors7msb5 f,ea4m y. This theory suggested that organic compounds, those found in liviem, 574a bssmfng 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 that the last sp. 28 yk2zd+,ct jrsruniversal common ancestor (LUCA) could have emerged at hydrothermal ve.ty2,s8dcjpzrk2 r s +nts?

Researchers carried out a similar experiment to Louis Pasteur’s famous expen+e/ y )scwry8riment disproving spontaneous genc+nyr s 8yw)e/eration, 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 generationdsv +d,(w ;8 :0 uh)wvkpfqgpw were replicated by placing broth into vaww dphdv 80+:vfg;k)w ,( qusprious flasks.

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

Below is a diagram of Euglena a photosynz rj,38yg i)ugthetic protist. It is a living cell which can carry out a i8)z,grj3 guyll 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.