Lucture 2 Flashcards
What is cell?
It is the basic unit of structure and function of all living things
What we call the organisms that only consist of one cell?
Unicellular
What we call complex organisms that consist of many cells?
Multicellular
What is Eukaryotic cells?
Eukaryotic cells have a nuclei and are surrounded by a membrane Z
What is Prokaryotic cells?
Prokaryotic cells that does not have a nuclei and are not surrounded by a membrane.
Name all the levels of organization?
Cell, tissue, organ, organ system, organism, population, community,ecosystem, biome, biosphere
Define tissue?
group of cells of the same kind.
Define organ?
Structure composed of one or more types of tissues. The tissues of an organ work together to perform a specific function.
Examples to plants organs?
Stems, roots, leaves
Define the organ system?
Group of organs that work together to perform a certain function
Define organism ?
Individual living thing that may be made up of organ systems
What is population?
Organisms of the same species that live in the same area.
Define community?
All the populations that live in the same area.
What is an ecosystem?
An ecosystem consists of all the living things (biotic factors) in a given area, together with the nonliving environment (abiotic factors).
What is a biome?
A group of similar ecosystems with the same general type of physical environment
Define biosphere?
The biosphere consists of many different biomes
Mention all the organsystems in animals?
Nervous, respiratory, excretory, reproductive, resistive, skeletal , muscular,circulatory
What is the function of nervous system and what it’s main organs?
Control all functions and it’s me. Organs are brain nerves spinal.
What is the function of the nervous system and what are its main organs?
Controls all the functions, and its main organs are brain nerves spinal
What is the function of muscular system and what are its main organs?
Movement of all parts, muscles
What is the function of a skeletal system and what are it’s main organs?
Gives shape, strength and protect soft organs, bones.
What is the function of the digestive system and what are its main organs?
Digest food and given energy, stomach, and intestines.
What is the function of the respiratory system and what are its main organs?
Takes an oxygen and gives out carbon dioxide CO2, lungs nose.
What is the function of the excretory system?
Remove waste, kidney.
What is the function of the reproductive system and what are its main organs?
Enable to make copies of 0WN, male and female different organs.
What is the function of the circulatory system and what are its main organs?
Carries food to all parts of the body, heart , blood vessels.
