What provides evidence that all life on Earth evolved from the same population o:kyim gq9ab86 f cells b a89qigymk:6?

  Identify the correct row in the table regarding the formation of vesicles;1 027aaql twao6ihl(dm m,ir.

  Whose experiments disproved spontaneous gener;gp rde42ty.ration?

  Which type of isotopes are commonly used in absolute dating of foshahomc p 89 ./ct )pkrk/u,z7xsils?

  Which of the following statemencp9t.sexc9akvfo/* 4iy :wi 1z4 g ol1ts are reasons that RNA is believed to be the first genetic mate* 9 1ifv w9:4 x/a4ztyo eci1clgsokp.rial?
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 1sf/bv 39 qldythe apparatus used in the experiments conducted by Miller and Uryb1fls q93v/ dey.


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 t56.spzcf 3eo 0d07itbs(xapt heory. This theory suggested that organic compounds, those found in living organisms, could only be produzep t7 ip.0(sad30b 6xft 5csoced 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 supportrj4d;h 657u*zu fxh ib that the last universal common ancestor (LUCA) could have emerged at hydrothermal75hd 64;ujihrx *uzfb vents?

Researchers carried out a similar ex l8x*+qto a7usperiment to Louis Pasteur’s famous experiment disproving spontaneous generation, using the set up below at 3xsu8*+ aot l7q0°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 expjx vrv9l 3qn+g6: 8 3xk0jhltreriments disproving spontaneous generation were replicated by placing broth into vxtr:h8njlr093j gqv6 +lk 3x various flasks.

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

Below is a diagram of Euglena a phot. 4 cru(x ot/w wb/v/nzs,qsg0osynthetic protist. It is a living cell whic(wn/srw/utvos/ g4,q 0 c z.bxh can 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.