BioBeyond unit 4- First signatures of life
From the video, what do scientists use to determine the age of these
rock layers exposed in the Australian desert? - ANS -Tiny mineral grains
in the rock
Let's take a moment to review what you observed at Nilpena. The
organisms you observed represented: - ANS -The rise of the oldest
complex organisms
If life was microscopic, what kind of evidence would be the easiest to
look for while observing the rock to indicate something once lived here?
- ANS -Indirect
- ANS -click on image 2 or 3
What characteristics could you use to identify more of these structures?
The structure has been outlined for you and you can get a closer look in
the gigapan image (magnifying glass icon) if necessary. - ANS -- Tiny
laminations in the layers
- A foamy texture within the rock
- Appears eroded or a deeper cut in the rock
From the video, what do scientists use to determine the age of these
rock layers exposed in the Australian desert? - ANS -Tiny mineral grains
in the rock
Let's take a moment to review what you observed at Nilpena. The
organisms you observed represented: - ANS -The rise of the oldest
complex organisms
If life was microscopic, what kind of evidence would be the easiest to
look for while observing the rock to indicate something once lived here?
- ANS -Indirect
- ANS -click on image 2 or 3
What characteristics could you use to identify more of these structures?
The structure has been outlined for you and you can get a closer look in
the gigapan image (magnifying glass icon) if necessary. - ANS -- Tiny
laminations in the layers
- A foamy texture within the rock
- Appears eroded or a deeper cut in the rock
