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1) Which of the following distinguishes living things from non living things?

ALiving things are made up of cells; no living things are not
Bliving things are made up of atoms; nonliving things are not
CLiving things are made up of elements; nonliving things are not
DLiving things are made up of molecules; nonliving things are not.


  1. why do living things need water

Aliving things need water to make food
Bliving things need water because it is the most abundant liquid on earth
Cliving things need water because many of the chemical reactions that sustain life require water
Dliving things need water because it is a major componet of cell membranes

  1. most bacteria are

Aunicellular eukaryotes
Bunicellular prokaryotes
Cmulticellular eukaryotes
Dmulticellular prokaryotes

  1. the cell theory was

Adeveloped by robert hook
Bdeveloped before microscopes were invented
Cdeveloped only after electron microscopes became widely used
Ddeveloped by many scientist over many years

Verified Answer :

genius321

1) is A
2) is C
3) is D
4) is C

Erudite1

The answers are as follows:
1. A
Cell is the basic unit of life. For a thing to be considered as a living thing it must possess at least a cell. The cell is the is basic unit of a living organism and all the biochemical activities that the cell need to maintain live is carried out inside the cell. On the contrary, non living things do not possess cells.
2. C.
For a living thing to remain alive, it must continue to carry out biochemical processes that maintain life. Most of these biochemical processes require water in order to occur, thus a living organism has to take in sufficient water in order to stay alive.
3. B.
Prokaryotes refers to those living organisms who do not possess a true nucleus and which lack membrane bound organelles in their cells. Prokaryotic cells are not well defined. Bacteria are a large group of unicellular micro organism and their cells is prokaryotic in nature.
4. D
The cell theory took years; close to 200 years to be developed and it involved the inputs of many scientists all over the world. Robert Hook was the first scientist to discover the cell, this was made possible by the help of a microscope. The cell theory continue to develop long after Robert Hook is dead.

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