What provides evidence that all life on Earth evolved from the same popu7 u9bh7jzzw dz(mh4 )uqgns/ 3lation of cellz9b 7)u(jwsq37huzh4n/ mgz d s?

  Identify the correct row in the table regarding:9a 5a bcpakxf97o-pfyneu)y 59 ry ma/-lh2n the formation of vesicles.

  Whose experiments disproved spontaneous iy.( m0faydb.generation?

  Which type of isotopes are commonly used in absolute datn 6v 7jpd:7gjjing of fossils?

  Which of the following statements are reasons that RNA is b;)d6cumt6d d0fm - y/mb8 eaqjelieved to be the first genetic matery8 ) muq/-0b d 6fj6amtce;mddial?
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 experiments conducted by v* d7utk7llz :Miller andtl7z 7kl*v u:d Urey.


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

  In the early 19th century, vita4;0/ *yy2abe joleovxlism was a widely accepted theory. This theory suggested that organic compounds, those found in living oevx0lb*a y e2/ ojoy;4rganisms, 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.2;)hnnmndkrryi klf 9.s e2: jxvn;k3c 2rp3 to support that the last universal common ancestor (LUCA) ccv:nnpe3;hl i3f9 r k2jn2k.k.x)d ;m2 rrs nyould have emerged at hydrothermal vents?

Researchers carried out a similar experiment t9nyz rcn:f muv ss01z9vl 6k0+o Louis Pasteur’s famous experiment disproving sv n990l nsk c1zm s0fz:uvr+y6pontaneous 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 spontaneouhrro0 /vmwg/,. :1/kdicdr rp7nlku ,s generation were replicated by placing broth into vag1rnik7cr.:/ od 0/udvkm,, phrw/lrrious 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 lseyq4 g +m7,sjiving cell which can carry out all the functioj +7ge,ms4 yqsns 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.