Question

pls give answer for this this is for project work​

Answer 1

Answer:

HERE IS YOUR ANSWER

Explanation:

Early Microscopists

1. Galileo saw details of insect eyes with two crude lenses.

2. Robert Hooke used simple lenses to observe cork in which he saw tiny compartments he called cells (cellulae).

3. van Leeuwenhoek saw protistans, sperm, and bacteria with his lenses and microscopes.

B. The Cell Theory

1. Schleiden (a botanist) and Schwann (a zoologist): believed that all plants and animals consist of cells.

2. Virchow: cells come from preexisting cells.

C. The Cell Theory: three generalizations:

1. All organisms are composed of one or more cells.

2. The cell is the smallest unit having the properties of life.

3. The continuity of life arises directly from the growth and division of single cells.