6.3 The development of understanding of genetics and evolution

A scientist suggests that:

a fossilised fish jaw formed when minerals gradually replaced the bone
a small bird found in a peat bog was preserved because conditions in the bog were unsuitable for decay.

Which pair of observations would support both suggestions?

[1]

The jaw is rock with the shape of the bone and no bone left; the bird still has its original skin and feathers.

The jaw is only an imprint left in rock, with no solid copy; the bird's bones are minerals and no skin or feathers remain.

The jaw is rock with the shape of the bone and no bone left; the bird's bones are minerals and no skin or feathers remain.

The jaw is only an imprint left in rock, with no solid copy; the bird still has its original skin and feathers.

A scientist suggests that:

a fossilised fish jaw formed when minerals gradually replaced the bone
a small bird found in a peat bog was preserved because conditions in the bog were unsuitable for decay.

Which pair of observations would support both suggestions?

The jaw is rock with the shape of the bone and no bone left; the bird still has its original skin and feathers.

The jaw is only an imprint left in rock, with no solid copy; the bird's bones are minerals and no skin or feathers remain.

The jaw is rock with the shape of the bone and no bone left; the bird's bones are minerals and no skin or feathers remain.

The jaw is only an imprint left in rock, with no solid copy; the bird still has its original skin and feathers.

6.3 The development of understanding of genetics and evolution Questions