TOPIC 1 Flashcards
Science that is concerned with animal life
Zoology
Study of the Classification of animals
Taxonomy
study of the relationship of animals with their environment
Ecology
study of the distribution of animals on earth
Zoogeography
study of how the existing kinds of animals came into being
Animal Evolution
stresses the structural aspects of the animal
Morphology
study of animal structure as revealed by gross dissection.
Anatomy
study of various animal types from the lowest to the highest form, with the aim of establishing homologies and the origin and modification of body structures
Comparative Anatomy
study of tissues as revealed by the microscope
Histology
study of the minute parts and functions of cells
Cytology
study of the formation and early development of the organism
Embryology
study of past life as revealed by fossils
Paleontology
includes subdivisions that are concerned with experimental alterations of the patterns of organisms
Experimental Zoology
study of heredity
Genetics
study of animal structure
Experimental Morphology
study of growth and development of the animal from fertilization up to birth or hatching
Embryology
study of the ultimate or ultramicroscopic structure and function of
living matter.
Molecular Biology
study of the chemical make-up of living tissues
Biochemistry
study of the chemistry of genes
Genetics
study of the chemical make-up of large
molecules that make up living matter
Chemistry of Macromolecules
study of insects
Entomology
study of worms with specific reference to parasitic forms
Helminthology
study of reptiles
Herpetology
study of birds.
Ornithology
study of parasitic organisms.
Parasitology
study of fishes
Ichthyology
study of mammals
Mammalogy
Living organisms were formed on our planet by some supernatural power called God or Creator, so it believed in divine creation of life.
THEORY OF SPECIAL CREATIONS/RELIGIOUS EXPLANATIONS
It states that life originated abiogenetically from non-living decaying and rotting matter like straw,
mud, etc., by spontaneous generation about 3.5 billion years ago
ABIOGENESIS OR THEORY OF SPONTANEOUS CREATION OR AUTOBIOGENESIS
abiogenesis was experimentally rejected by
Francisco Redi
proposed that worms, insects, fish, frogs and even mice developed from soil and filth; tapeworms from excreta of animals; crabs and salamanders from earth and slime.
Aristotle
showed that minute organisms like protists and bacteria arise from pre-existing organisms of the same kind
Louis Pasteur
It states life arises from pre-existing life only
BIOGENESIS
The idea of spontaneous generation came to an end with his experiment of. He founded the theory of biogenesis.
Francisco Redi
It states that life came on the earth from some other planet in the form of seed or spore called panspermia, so is also called spore theory
OSMOZOIC OR EXTRATERRESTRIAL OR INTERPLANETARY OR PANSPERMIATIC
THEORY
OSMOZOIC OR EXTRATERRESTRIAL OR INTERPLANETARY OR PANSPERMIATIC
THEORY It was proposed by ____ and was supported by _____
Richter & Arrhenius
also known as “chemical theory” or theory of primary abiogenesis
MODERN THEORY
The idea of chemical theory was put forward by two scientists
A.I. Oparin and
J.B.S Haldane
This is the extension of the theory of special creation. This theory assumes that life has originated by the creation and it is followed by catastrophe due to
geographical disturbances
THEORY OF CATASTROPHISM
capture energy from the sun and convert it into chemical energy in food
(photosynthesis)
use chemical energy in molecules they take in as food
cellular respiration
the collective name given to essential chemical processes that go on in living cells and organisms
Metabolism
Organisms are highly organized, coordinated structures that consist of one or more cells
Order
Living things respond to stimuli from their environment
Irritability or Sensitivity
tiny bacteria can move toward or away from chemicals
chemotaxis
tiny bacteria can move toward or away from or light
phototaxis
Living things reproduce themselves, using a molecular blueprint called
DNA
Reproduction
Organisms grow and develop following specific instructions coded for by their genes
Growth and Development
Living things, taken as a whole, have the capacity to evolve
Evolution
The most important force in evolution, it is the process by which organisms with traits that help them cope with the rigors of their environment survive and reproduce more successfully than others that
lack these features
natural selection
In order to function properly, cells need to have appropriate conditions such as proper temperature, pH, and appropriate concentration of diverse chemicals
Homeostasis
the smallest and most fundamental unit of matter
atom
is a chemical structure consisting of at least two atoms held together by one or more chemical bonds
molecule
is a large molecule that is made by combining smaller units called monomers, which are simpler than macromolecules
polymer
An example of a macromolecule, which contains the instructions for the structure and functioning of all living organisms
deoxyribonucleic acid (DNA)
Some cells contain aggregates of macromolecules surrounded by membranes; these are small structures that exist within cells
Organelles
produce energy to power the cell
mitochondria
enable green plants to utilize the energy in sunlight to make sugars
chloroplasts
the smallest fundamental unit of structure and function in living organisms
cell
are single-celled or colonial organisms that do not have membrane-bound nuclei or organelles
Prokaryotes
do have membrane-bound organelles and a membrane-bound nucleus.
eukaryotes
In larger organisms, cells combine to make _____, which are groups of similar cells carrying out similar or related functions.
tissues
are collections of tissues grouped together performing a common function
Organs
higher level of organization that consists of functionally related organs
organ system
are individual living entities
Organisms
Single-celled prokaryotes and single-celled eukaryotes are also considered organisms and are typically
referred to as ______.
microorganisms
All the individuals of a species living within a specific area
population
is the sum of populations inhabiting a
particular area
community
consists of all the living things in a particular area together with the abiotic, non-living parts of that environment
such as nitrogen in the soil or rain water
ecosystem
highest level of organization, the collection of all ecosystems, and represents the zones of life on earth.
biosphere