Question

Not all cells are microscopic. The egg of an ostrich is made of a single cell. It is about 15 cm
multicellular organisms, the nerve cells are the longest. A human nerve cell can be as long as 1
The nerve cell in the leg of a giraffe can be more than 3 m long. A giant squid may have nervec
with naked eyes. We need a microsco)
long
The smallest cells (about 0.1 to 0.2 micrometre in diameter) are found in
up to 10 m long.
Learning Milestone
Fill in the blanks.
1.
_______is an example of a unicellular organism that is irregular in shape.
2.
_____discovered the cell.
3. The invention of______
led to a better study of the cell.
4. The thread-like projections lining the small intestine are called ________


answer as fast as you can
Structure of a Cell
​

Answer 1

Answer:

1. Amoeba

Explanation:

2. Robert Hooke

3. Microscopes

4. Microvilli

Answer 2

Answer: 1) amoeba

2) Robert Hooke

3) Microscope

4) villi

Hope it helps