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Science Ojective2

Life is organized in the this manner atoms molecules cells tissues organs organ systemsorganismpopulationscommunitiesecosystems
Structure is the way something is put together and function is the job that the structure performs. These two concepts are interrelated.
Unicellular organisms carry out all of the functions necessary for the organism to stay alive within a single cell.
Multicellular organisms are composed of many specialized cells that work together to help the organism survive.
Autotrophs are organisms that can make their own food, they are also known as producers
Heterotrophs cannot make their own food so they must eat other organisms, they are known as consumers
Homeostasis is the attempt of the body or a cell to maintain a constant internal environment
feedback mechanism a response of an organism to a given change.
cell membrane The function of the----------is to control what substances come into and out of the cell.
cell wall Plant cells have a------outside the cell membrane whose function is to shape and support the cell.
nucleus The nucleus of a cell directs all of the cell's activities.
DNA is the genetic material of the cell and it is found in the nucleus.
Mitochondria are organelles that produce most of the energy the cell needs to carry out its functions.
Endoplasmic reticulum ) is an organelle that carries proteins and other materials from one part of the cell to another.
Ribosomes are organelles that produce proteins inside of a cell.
Chloroplast is an organelle found only in plant cells that captures energy from sunlight and uses it to produce food for the cell
Vacuole is an organelle that is a storage area of the cell.
prokaryotes Bacteria cells are called prokaryotes because they do not have a nucleus.
Eukaryotes are cells that contain a nucleus.
heredity. is the process by which traits are passed on from parent to offspring.
Asexual reproduction is a reproductive process that involves only one parent and in this process the offspring is identical to the parent.
photosynthesis During photosynthesis cells capture energy from sunlight and use to produce food
photosynthesis this is the equation for--------CO2 + H2O  C6H12O6 + O2
respiration During ---------- cells break down glucose to produce energy that is needed to function
adaptation the structures of animal body help the animal to------ to survive in its habitat.
invertebrate is an animal without a backbone while a vertebrate is an animal with a backbone
ecosystem. 36) All of the living and nonliving things that interact in a particular area make up an ----------
biotic factors 37) The living parts of an ecosystem are called the ------and the nonliving parts of an ecosystem.
habitat An organism’s ----- the things an organism needs to live, grow, and reproduce
population 39) All the members of one species in a particular area are referred to as a --------.
community All the different populations that live together in an area make up a --------.
limiting factor is an environmental factor that prevents a population from increasing.
Decomposers obtain energy by breaking down waste and the remains of dead organisms.
Created by: cruzc