Basic Life Concepts
Define an organism.
What is a living thing?
A single-celled organism that lacks a nucleus.
What is bacteria?
The process of grouping things based on their similarities.
What is classification?
A body structure composed of different kinds of tissues that work together.
What is an organ?
The type of reproduction that only requires one parent.
What is asexual reproduction?
The basic building block of all living things.
What is a cell?
Heterotrophs that feed by absorbing food through their cell walls.
What is fungi?
The scientific study of how organisms are classified.
What is taxonomy?
An animal that has a backbone
What is a vertebrate?
This tool is used to identify organisms by following a series of choices.
What is a taxonomic key?
The process by which organisms maintain a relatively stable internal environment.
What is homeostasis?
A tiny, nonliving particle that invades and then reproduces inside a living cell.
What is a virus?
Broadest level of classification.
What is domain?
An animal that does NOT have a backbone.
What is an invertebrate?
This system gives every organism a two-part scientific name.
What is binomial nomenclature?
A change or signal in the environment that can make an organism react in some way.
What is a stimulus?
An organism that benefits from living with, on, or in a host.
What is a parasite?
A group of similar, closely-related organisms.
What is genus?
When only one line can be drawn to divide the body into halves that are mirror images.
What is bilateral symmetry?
This process allows bacteria to reproduce by splitting into two identical cells.
What is binary fission?
The four basic needs of living things.
What is water, food, space, and homeostasis?
A eukaryotic organism that cannot be classified as an animal, plant, or fungus.
What is a protist?
A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce.
What is species?
When many imaginary lines can be drawn through a central point to divide the body into two mirror images.
What is radial symmetry?
The mistaken idea that living things can come from nonliving matter.
What is spontaneous generation?