What provides evidence that all life on Earth evolved from thpgjcu46x k m*(e same population of 6jx mck(gpu4 *cells?

  Identify the correct row in th25 nbf bua0a4wmeejz )mh7 .cr,x-)ta1+ gc sqe table regarding the formation of vesicles.

  Whose experiments disproved spp8nskpjzy7r f+i:8 ; lontaneous generation?

  Which type of isotopes are commonly7 grlqbaeq ,d- y1yrno(3cu06 used in absolute dating of fossils?

  Which of the following st+th(l .ctfhbi gt 66a3z)yj p7atements are reasons that RNA is believed to be the first genetic cyt7 6lt +bih)hp jgft a(6.z3material?
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 experimat;v pzx9,q(ul2vk b* ents conducted by Miller and Ure;pkq 9azu2 vxbvt(*,ly.


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 mvh)gn /5 7vj6i0o vuwtheory. This theory suggested that organic vohu5v0j/wmng) 67vicompounds, 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-rwd9loy , sh-frza5dso9 h49 m7x 4te to support that the last universal common ancestor (LUCA) could have emerged at hydrothwhr 7x9ho-elsos 44 5ar9tm-9f , ddyzermal vents?

Researchers carried out a similar experiment to Louis Pastrgqe/ a5 5, /sysiu3i1kgy 5mneur’s famous experiment disproving spontaneousygq, u5iag/sm5/3ys 5knr1e i 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 wereugsr4f50 a-g 47tfuuh replicated by placing broth into various flasks. h-f5a7 usg0ur4fu4gt

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

Below is a diagram of Euglena a photo n- +c82lqh/9sjlgwovsynthetic protist. It is a living cell which can carry out all the functions of life.lvng+ -how j/8 c2l9qs

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.