Using the drop-down menus, identify the

structures common to all cells.

label a

label b

label c

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label d

As the image or labels are not provided, lets generally look at structures which are common to all cells (eukaryoic)

Explanation:

The eukaryotic cells can be divided into two main types: plant cell and animal cell.

The similar structures in both of these cells include:

Cell membrane: The covering which is semi- permeable and protects the cell from the external environment.

Cytoplasm: The fluid in which all the organelles of a cell float.

Vacuole: Storage house of a cell.

Nucleus: The are where all the hereditary material exists.

Ribosomes: Organelle where proteins are made.

Endoplasmic Reticulum: Also associated with the making of proteins.

Golgi-complex: Area where proteins are modified and packaged.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !

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