quiz 9.23 Flashcards
Levels of Organization
atoms molecules organelle cells tissues organs organ systems organisms populations communities ecosystems and biospheres
Independent Variable
a variable often denoted by x directly changed by you
Dependent Variable
a variable (often denoted by y ) a variable you measure
Hypothesis
a testable prediction
control group
group used to compare results
expieremental group
group that was tested
constants
factors that remain the same
qualitative
observed using senses
quantitative
observed using numbers/measurments
1
Made up of at least one cell
uni cellular- single cell
Multi cellular- multiple cells
2
contains genetic material
DNA
3
Able to reproduce
Asexual- one parent cell splits in two
Sexual- Two parent cells join to create one offspring cell
4
Regulates Internal Environment
5
Obtain and use energy
6
Grow and develop
7
Respond to Stimuli
When you hear a loud noise what do you do?
Living things respond to changes in their environment
A stimulus refers to a detectable change in the internal or external environment while a response refers to any behavior of a living organism that results from an external or internal stimulus.
8
Adapt and evolve
as a group populations and organisms evolve and change over time
9
All living things maintain homeostasis.
Homeostasis- A state of balance among all the body systems needed for the body to survive and function correctly.
atom
single neutral particles
molecule
neutral particles made of two or more atoms bonded together.
organelle
specialized structures that perform various jobs inside cells
cells
the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
tissues
group of cells that have similar structure and that function together as a unit
organ
a group of tissues in a living organism that have been adapted to perform a specific function.
organ system
a group of organs that work together in the body to perform a complex function, such as pumping blood or processing and utilizing nutrients.
populations
one species
Community
an interacting group of various species in a common location.
Ecosystem
a geographic area where plants, animals, and other organisms, as well as weather and landscapes, work together to form a bubble of life.
Atmosphere
During cellular respiration, the inorganic byproduct CO2 is produced and released into the atmosphere. Photosynthetic organisms, such as plants, acquire inorganic CO2 from the atmosphere. Greenhouse gases, such as carbon dioxide, increase the overall temperature of the atmosphere by trapping and holding heat energy before releasing it into space. This is known as the greenhouse effect. Without it, the daily temperature would be much lower and nights would be unbearably cold. Carbon dioxide and other greenhouse gases are vastly important as they allow for the ability to inhabit the Earth.
Geosphere
the scientific name for the solid parts of a planet
Lithosphere
the solid, outer part of Earth, including the brittle upper portion of the mantle and the crust.
Hydrosphere
the sum of Earth’s water, in the ocean, the ground, on the surface, and in the air.
Biosphere
made up of the parts of Earth where life exists—all ecosystems.
Ecology
the study of the relationships between living organisms, including humans, and their physical environment;
Abiotic
Non living
Biotic
Living
