Question

Progress Check!!!!!
1. Name the following:
(i) Any two one-celled organisms.
(ii) The longest cells in animals.
(iii) Amoeboid cells in humans.
(iv) Shape of white blood cells.

2. List three categories of substances which are
ensured greater diffusion due to large surface/
volume ratio of the cells.​

Answer 1

Explanation:

Answer are as follows ..

1.

1) Amoeba , Paramecium ,Diatom

2)Nerve cell also called neuron

3)Amoeboid cells are called White Blood Cells (WBC's)

4) White blood cells do not have a specific shape as red blood cells

2.

The first category is the respiratory gases, i.e., carbon dioxide and oxygen which are diffused in and out from the alveoli.

The second are the nutrients absorbed from the villi of small intestine.

The third category is the waste which is generated by the cells.

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Answer 2

Answer:

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