Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Bio Mid-term 2014

study flash cards

Biosphere All parts of Earth inhabited by living things
Examples of Organisms Squirrels, oak trees
Basic unit of structure and function in life. Cell
A distinct type of organism Species
Eukarya Organisms in this domain have cells with a nucleus.
The process of keeping internal conditions stable. Homeostasis
A local group of organisms that belong to the same species. Population
Cells in a multicellular organism. Specialized to perform particular functions.
Levels of organization from simple to complex. Cell, tissue, organ system
All parts of the Earth inhabited by living organisms. Biosphere
Largest organizational level. Biosphere
Broadest category of life. Domain
Perform different functions. Cell specialization allows cells to...
Light and temperature are examples of... Factors to which living things respond.
A group of cells, performing a similar function. Tissue
Organ system Organs that work together in a major body function.
You make a suggestion to predict an outcome. Hypothesis
Controlled experiment Scientist isolate and test a single variable.
Observations and questions. The work of a scientist usually begins with...
Hypothesis supported by much experimental data may become a... Theory
Useful hypothesis can be tested
"All living things are made of cells," is an example of... A theory
Biology study of life.
An experiment that tests the effect of a single variable. Controlled experiment
Well-tested explanation of many observations. Theory
Hypothesis Maybe disproved by a single experiment.
Can be modified or discarded. A theory
A model ____________ new observations. explains; predicts; matches
An example of a model. A map
Using genetic engineering is an example. Technology
Oxygen, carbon, hydrogen, nitrogen Most common elements in living organisms.
Chemical combination of two or more elements Compound
Nucleus of an atom Protons and neutrons
Form of an element with the same number of protons but different number of neutrons. Isotope
Atoms in a chemical reaction are rearranged.
In the reaction, CO2 + H2O --> H2CO3, Which are the reactants. CO2 + H2O
A molecule of water two atoms of hydrogen, one atom of oxygen
Ice floats ice is less dense than liquid water
Three particles that make up an atom proton, neutron, eletron
Electrons in the space surrounding the nucleus of an atom
Atomic number Equals the number of protons
The bond formed by sharing electrons Covalent bond
Hydrogen combines with oxygen to form water. Water is the product
Water is polar oxygen side is slightly negative, hydrogen side slightly positive.
A substance with pH = 6 an acid
A solution a uniform mixture of two or more substances
Salt is dissolved in water, water is the solvent
Carbon produces a variety of carbon skeletons because carbon can bond with one or more other carbon atoms
Polymers are made of monomers. True or false True
Sugars main fuel supply for cellular work
Monosaccharide carbohydrate
Steroid has a carbon skeleton that has four fused rings
Amino acid is to protein as simple sugar is to starch
The number of bonds that carbon can make four (4)
A substance that accelerates a chemical reaction Catalyst
the energy needed to start a reaction activation energy
The reaction that adds a monomer to a chain dehydration reaction
Disaccharide a sugar made of two sugar units
Polysaccharide examples starch, glycogen, cellulose
Cholesterol Steroid
Amino acids differ in the side groups
Light microscopes magnify objects up to 1000 times
Cell type with a nucleus eukaryotes
Plasma membrane channels are made of proteins
Animal cell in fresh water will burst because osmosis causes water to move into the cell
Molecules will move across the membrane in both directions when concentration of molecules is the same
Organelle that breaks down macromolecules lysosome
The path of a protein in a cell rough endoplasmic reticulum, Golgi apparatus, released from cell
The organelle that releases energy from sugars Mitochondria
These structures carry out cell movement microfilaments
"Very few cells reproduce." Part of the cell theory, yes or no? NO
Thin, flexible barrier around the cell Plasma membrane
Organelle in plant cells, not in animal cells chloroplast
This cell structure that contains genetic material. Nucleus
Function of the cell wall protection and maintaining cell shape
Prokaryotic cells lack a nucleus
Regulating which materials enter and leave cell Function of plasma membrane
Diffusion the net movement of molecules from an area of high concentration to an area of low concentration.
Passive transport of water across a membrane Osmosis
Particle transport that require in put of energy Active transport
Biosphere all the organisms, land, water, and air on Earth
Members of the same species living in a particular area population
The biome with the least amount of precipitation desert
A biome is identified by the community of organisms, particularly plants
The biome with very low temperatures, high winds, and permafrost tundra
Soil type, temperature, water abiotic factors
Sun's energy strikes the Earth's surface at different angles at different latitudes
An example of a microclimate A forested park within a desert city
The main reason Earth has three major climate zones differences in latitude result in differences in the angle of heating by the sun
Biome with cold winters, warm summers and deciduous trees has what kinds of animals? deer, squirrels, rabbits
Which level is largest: community, organisms, ecosystem, population Ecosystem
150 cacti in per square kilometer population density
Density-dependent limiting factor disease
Niche an organism's habitat, food sources and factors specific to its life
When one organism captures and feeds on another, it is called predation
The relationship between a flower and the insect that pollinates it mutualism
Changes in a community over time ecological succession
Population growth will do what when resources become scarce? It reaches carrying capacity
A condition in the environment that restricts a population's growth limiting factor
This type of population will be least affected by a density-dependent factor. small, scattered population
Fire is an example of which type of limiting factor? density-independent
In the year 2000, the global human population was? about 6 billion
Primary succession starts on bare soil, secondary succession starts on soil. True or False? True
Energy transfer of energy and matter within food web. trophic level
Biomass pyramid shows the amount of living tissue at each trophic level
Transpiration process of plants moving water through their tissues and evaporating it off their leaves.
The movement of water from the Earth's surface to the atmosphere and back again water cycle
The increase in Earth's average temperature from excess carbon dioxide global warming
A snake eats a frog, that ate an insect that fed on a plant. The snake is what level of consumer? tertiary consumer
matter can be recycled through the biosphere because chemicals can be used again and again
Algae holds what position in a food chain producer
The value of biodiversity is in as natural resources, foods and goods, medicines for people
Organisms that break down wastes decomposers
A bird stalks, kills and eats an insect. The bird is a carnivore and consumer
Ozone is depleted by the action of chlorofluorocarbons (CFCs)
Measurements of a plant's growth data
A logical conclusion based on observations Inference
Habitat destruction threatens biological diversity
Created by: ccarlough