Characteristics of Life Flashcards
Characteristic of Life: All organisms are composed of ________ (the smallest structural and functional unit of an organism)
Cells
(Under Cells) __________ organisms are made up of only one cell that carries out all of the functions needed by the organism
Unicellular
(Under Cells) ___________ organisms use many different cells to function
Multicellular
(Under Cells) ___________ organisms made up of cells that lack a cell nucleus or any membrane-encased organelles
Prokaryotes
(Under Cells) _________ are organisms made up of cells that possess a membrane-bound nucleus that holds genetic material as well as membrane-bound organelles.
Eukaryotes
Characteristic of Life: All organisms have the ability to G_________ and D_________
Grow and Develop
Increase in size and mass
Growth
Specified state of growth or/of advancement
Development
How do living organisms grow
Through intussusceptions (ingestion, digestion, absorption; when there is addition of material and formation of the cells inside the organisms)
How do non-living organisms grow
Through accretion/extrinsic grow (addition; the increase in size due to deposition of material on the external surface is known)
Characteristic of Life: a natural process among organisms by which new individuals are generated and the species perpetuated
Reproduction
In terms of reproduction, hybrid animals are __________
infertile
What is Asexual Reproduction?
involves a single parent. It results in offspring that are genetically identical to each other and to the parent. All prokaryotes and some eukaryotes reproduce this way.
what is sexual reproduction?
two parents contribute genetic information to produce unique offspring. in sexual reproduction, parents produce reproductive cells—called gametes—that unite to form an offspring. Gametes are haploid cells. This means they contain only half the number of chromosomes found in other cells of the organism.
Characteristic of Life: Self-regulating process to maintain stability
Homeostasis
