phil. 1
is a field of science that deals with the study of the interaction between the human and natural systems.
Environmental science
It deals with the physical, biological, and chemical sciences to study the environment and discover solutions to environmental problems.
Environmental science
To discover sustainable ways of living and utilize natural resources efficiently
ENVIRONMENTAL SCIENCE
To realize that environmental problems are global and to create awareness about environmental problems at local, national, and international levels
ENVIRONMENTAL SCIENCE
To understand the impacts of development on the environment
ENVIRONMENTAL SCIENCE
To understand the interrelationship between organisms
ENVIRONMENTAL SCIENCE
To enlighten people about contemporary concepts such as how to conserve biodiversity
ENVIRONMENTAL SCIENCE
LEVELS OF BIOLOGICAL ORGANIZATION
cell
tissue
organ
organ system
organism
population
community
ecosystem
biosphere
earth
Group of cells
Tissue
Smallest unit of living things
Cell
Group of organs that perform different functions
Organ system
Group of differentiated tissues doing the same work
Organ
Group of similar organisms occupying a definite area
Population
Individual living thing
Organism
Group of communities interacting with their abiotic factors.
Ecosystem
Group of different populations interacting with one another
Community
The planetary environment
Earth
All the ecosystem on earth with its physical environment
Biosphere
a branch of biological science that deals with the interaction between living things and their environment.
ECOLOGY
Ecology comes from the Greek word _______
oikos
oikos means
house or environment
Ecology comes from the Greek word "oikos," which means house or environment. It was coined by the ____________
German scientist Ernst Haeckel
TWO MAIN BRANCHES OF ECOLOGY
AUTECOLOGY
SYNECOLOGY
also called population ecology
AUTECOLOGY
the study of individual organisms or species and their relationship to the environment
AUTECOLOGY
also called community ecology
SYNECOLOGY
the study of groups of organisms of different species and their relationship to each other and to their environment
SYNECOLOGY
it is a Living component
BIOTIC FACTOR
it is a Non-living component
ABIOTIC FACTOR
4 ABIOTIC FACTOR
WATER
SOIL
SUNLIGHT
TEMPERATURE
An odorless, tasteless inorganic substance made of two hydrogen and one oxygen
WATER
It serves as habitat for marine and freshwater organisms
water
It comprises a large percentage of the body of an organism.
Water
It transports substances in the bodies of plants and animals.
water
It helps in seed germination
water
TYPES OF PLANT ACCORDING TO ITS WATER REQUIREMENT
HYDROPHYTES
HALOPHYTES
MESOPHYTES
XEROPHYTES
TROPOPHYTES
Plants that can survive water containing high salinity
HALOPHYTES
Plants that need an abundant supply of water
HYDROPHYTES
Plants that need a moderate supply of water.
MESOPHYTES
Plants that can tolerate a scanty water supply
XEROPHYTES
Plants that live in an environment which heavy rainfall alternates with periods of drought
TROPOPHYTES
is a material formed from small particles of rock mixed with organic materials and minerals and found in the upper layer of the earth's crust.
soil
TYPES OF SOIL
SAND
CLAY
SILT
LOAM
SAND
Plants do not grow well because water goes rapidly through the spaces and dries off quickly.
soil that has the largest particle
SAND
It retains water before drying, so it is sticky, often damp, and not suitable for plant growth.
CLAY
the smallest particle of soil
CLAY
Soil that is found near the river and other water bodies.
silt
Soil that can hold water better than sand and is usually carried by moving current.
silt
soil that is smaller than sand but larger than clay
SILT
soil that is good for agriculture and is made up of sand, silt, and clay with an organic material called humus.
LOAM
is needed by plant for photosynthesis and animals for warmth
SUNLIGHT
is the main and the oldest of all energy sources
SUNLIGHT
Some animals may escape the cold by hibernation or migration.
TEMPERATURE
it may affect the presence or absence of animals in different habitats.
TEMPERATURE
is the hottest or coldness of an area
TEMPERATURE
It may be between individuals of the same species (intraspecific) or between different species (interspecific).
BIOTIC FACTORS
There are biological relationships that happen in an ecosystem.
BIOTIC FACTORS
These are the living components of an ecosystem.
BIOTIC FACTORS
include different species struggling with each other for space and food.
Interspecific relationships
include mating, assistance, gregariousness, and competition.
Intraspecific relationships
INTERACTION IN AN ECOSYSTEM
Abiotic - abiotic → interaction among physical factors
Biotic - biotic → interaction among biotic factors
Biotic - abiotic → relationship between living and non-living things