Living Environment Translated English 2014 | Page 7

6. All living organisms carry out basic life processes such as respiration,
excretion, digestion, growth and development, assimilation,
reproduction, and response .
7. Spontaneous generation is the idea that living things come from
nonliving things.
8. The work of Louis Pasteur disproved the theory of spontaneous
generation.
9. Biogenesis is the theory that living things come only from other living
things.
10.A biotic factor is a living organisms in an environment- such as trees,
bacteria, animals.
11.An abiotic factor is a nonliving factor in the environment- such as
water, air, temperature.
12.Size is a limiting factor in all living things. If a cell gets too large it
must divide or die.

Unit 3: Cell Biology
A. Microscopes
1. Vocabulary:
a. Compound Microscope- an instrument with a two lens
system that provides an enlarged image of an object
b. Ocular ( eyepiece)- the part of the microscope that a person
looks into; multiplies the image 10X
c. Body Tube- a tube that connects the eyepiece to the
nosepiece.
d. Turret ( nosepiece)- the part of the microscope that holds
the objectives and allows them to be moved into position
for viewing