The study of lifee

Biology : The of living things and onced-living things.

 Light Microscope: Light passes through the object being looked at and then through two or more lenses.

Stereomicroscope: used for viewing large objects and things through which light cannot pass.

 

International System of units: A meausring system based on unit.

Meter : An SI unit of mass.

Volume : The amount of space  a substance occupies .

Kilogram: Ab SI unit of mass.

Celsius : A scale with wich scientist measure sentences.

Scientific method :series of steps used by scientists

 

hypothesis: a statement that can be tested.

experiment: testing an hypothesis using a series of steps with controlled conditions.

variable:  something that causes the changes observed in an experiment.

control: a standard for comparing results.

data: recorded facts or measurements from an experiment.

theory: a hypothesis that has been tested again and again by many scientists, with similar results each time.

technology: the use of scientific discoveries to solve everyday problems.

Protist and Fungi

protozoan: one-celled animal-like organism with a nucleus.

cilia: short hair like parts on the surface of the cell.

 sporozoans: protozoans that reproduce by forming spores.

spores: special cells that develop into new organism.

algae: plantlike protists

multicellular: means that an organism has many different cells that do certain jobs for the organism.

 slime mold: fungus like protists that are consumers.

hyphae: network of threadlike structures most fungi are made up.

sporangium fungi: fungi that produce spores in sporangia.

sporangia: structure on the tips of hyphae that make spores.

club fungi: fungi with club-shaped parts that produce spores.

sac fungi: produce spores in saclike structures.

budding; reproduction in which small part of the parent grows into a new organism.

mutualism: arrangement in which both organism are benefit.

lichen: a fungus and an organism with chlorophyll living together.

 

Viruses and Monerans

Virus: it is made of chromosome-like part surrounded by a protein coat.

Host: is an organism that provides food for a parasite. Parasite: is an organism that lives in or on another living thing and gets food from it.

Interferon: is a chemical substance that interferes with the way viruses reproduce.

Vaccines: substances made from weakened or dead viruses.

Bacteria: very small, one-celled monerans.

Colony: a group of similar cells growing next to each other that do not dependon each other.

Capsule: bacteria`s sticky outer layer.

Flagellum: long whiplike thread.

Fission: the process of one organism dividing into two organisms.

Asexual reproduction: the reproducing of a living thing from only one parent.

Endospore: is a thick-walled structure that forms inside the cell, enclosing the  all the nuclear material and some cytoplasm.

Saprophytes: are organism that use dead materials for food.

Decomposers: living things that get their food from breaking down dead matter into simpler chemicals.

Koch`s postulate: are steps for proving that a disease is caused by a certain microscopic organism.

 

Communicable diseases: diseases that can be passed form one organism into another.

Antibiotic: are chemical substances that kill or slow the grouth of bacteria.

Biotechnology: the use of living things to solve practical problems.

Pasteurization: the process of boiling milk to kill harmfull bacteria.

Blue-green bacteria: small, one-celled monerans that contain chlorophyll and can make their own food