Characteristics of Life
True or False: all living things use energy
TRUE
What is the most specific level of classification called?
species
The smallest unit of matter
Atom
What did Darwin notice was different between the finches on the Galapagos Islands depending on their food source?
their beaks
When graphing data, what goes along the Y axis: the independent or dependent variable?
dependent variable
What are the two types of reproduction?
sexual and asexual
What is the broadest level of classification called?
domain
Multiple atoms bonded together make up a ___________
molecule
What is natural selection?
Organisms more adapted to their environment survive and pass on their genes to the next generation.
Ms. Williams tries feeding her cat, Sherman, a new type of cat food to see if his weight changes (he needs to shed a few pounds). What would be the dependent variable in this experiment?
Sherman's weight
What is the fancy word that describes how living things maintain a stable internal environment?
Homeostasis
What domain are humans a part of?
Eukarya
Multiple organs working together to perform a specific function are called a(n) ______________________
organ system
What is artificial selection?
the process where humans deliberately choose and breed plants or animals with specific desirable traits to enhance those characteristics in future generations
What are the 3 domains?
Eukarya, Bacteria, Archaea
What controls the growth/development of an organism?
Its DNA
How do we write the scientific name of an organism?
Genus + species
A colony of ants living in your backyard would be considered a _____________
population
Change within a species over time
microevolution
What is a "control" in an experiment?
A variable that does not change so that other results can be compared to it.
Write a real life example of a living thing responding to a stimulus in its environment.
(answers will vary)
What class are humans a part of?
Mammalia
A population of grasshoppers living in an area with a population of grasses and a population of woodpeckers would make up a(n) ____________________
community
Large change over a long period of time that leads to the formation of new species (NOT proven)
macroevolution
What does DNA stand for? :)
deoxyribonucleic acid