list several factors that impact physical fitness

1. SIGNS OF LIFE

2.  Every living things is called an organism. All living organisms have the
same biological characteristics and hey are the following:
 1. GROWTH – the capacity to increase in size, and it can be achieved
through materials in the form of nutrients taken into the body called
ASSIMILATION.
For one celled organisms, growth is by increase in size of the cell, or for a
bacteria.
For multi-cellular organisms, growth is the result of an increase in both
the number and size of cells.
Example Animals have limited growth as compared to plants, because
plants have continuous growth throughout their life defending on supply
sunshine and water,(as long as it received water and sunshine) whereas
animals have limited because of age factor like human.
2. REPRODUCTION – all living things are capable of reproduction which
ensure their survival. It is the process of producing new organisms of
same kind.
2 types of reproduction:
2.1 sexual it involves fusion of male and female sex cells which
create new gene combinations
2.2 asexual- single cell organisms can reproduce offspring without
the aid of another.

3. 3. METABOLISM – it is the sum total of all the physical and chemical
changes undergoing within the organisms. It defends on how the
structure mobilized its intake of food and digest it or how the chemical
reaction occur in the cells of the body.
Imagine how plants manufacture their own food in the process of
Photosynthesis, wherein simple molecules of water and carbon
dioxide with the aids of sunlight acting on chlorophyll produced
complex molecules called carbohydrates and oxygen. Wherein it is a
part of the structure of an organism, so organisms can repair or
replace worn – out parts .
Example: Flour in bread – carbohydrates can enter a minute cells
through the process of digestion (nutrients enter the cells be
converted to ENERGY molecules called ADENOSINE triphosphate
(ATP) through the process of cellular respiration . Most of the
chemical reactions that occur within the cells produce wastes, which
could be eliminated from the cell through excretion, all the process
are in the forms of metabolism.
Metabolic reaction are classified as:
1. Anabolic (anabolism) in which complex chemicals are built from
smaller components,
2. 2. catabolic ( catabolism) in which large complex chemicals are
broken down into smaller components (Chewing)

4. 4. HOMEOSTATIC RESPONSES – all living organisms have the capacity
to react to stimulus (Irritability) and adjust to change or situation in
environment (adaptation) to maintain its condition. Ex. during hot
weather you drink cold water to refresh because usually you sweat, to
maintain the stability of body temperature you take water to replace
the perspiration from sweating. Called Homeostasis .In Animals it
involves in the process of: excretory, endocrine, nervous and digestive
systems are involved in the process of regulation, which contribute in
maintaining homeostasis.
5. NUTRITION – these are the materials from the environment and
change into forms like food. For the conversion to energy to make
body energetic and strong. These are the nutrients taken by the body
needed for energy, growth, repair and maintenance to make the body
healthy.
6. MUTATION – capacity to change its genetic composition as a result
of change iun the environment or evolution. Types of Mutation: 1.
somatic mutation – change in the genetic composition of somatic cells
or body cells. Ex. Albinism (lack of skin pigmentation or melanin ) 2.
Germ Mutation change in the genetic composition of the germ cells or
reproductive cells, Ex. Klinefelter Syndrome (hermaphrodism)

5. 7. BIOLOGICAL ORGANIZATION – level of organization, like
cellular level of organization but function as organism, other
much higher level like tissues, organ, or organ system level.
8. MOVEMENT – capacity to move, they are motile, move
from one place to another, or based on sunlight like plants
they move according to position of sunlight, either
stationary or change in structures based base on response
to stimuli such as touch, presence and direction of light,
rise and fall of temperature, vibration, chemical gravity,
Locomotion for them to move like amoeba and flagella
(bacteria).
9. LIFE SPAN –controlled by its genetic composition (rate of
aging) and external environment (disease, accident etc.)
10. FORM AND SHAPE – capacity to have specific forms and
shape. Which is controlled by its genetic composition and
factors of the environment.