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56 Cards in this Set
- Front
- Back
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What is the age of the Earth?
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10 billion years old
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When did life begin?
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3.5-4.0 Billion years ago.
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Biology?
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The study of Life
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Ecology?
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Study of environment
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Adaptation
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changes and organism makes to survive an environmental change.
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morphology.
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study of anatomy of organisms.
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diversity?
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different kinds or life.
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who is Linneaus?
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Father of modern taxonomy. made the key.
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dichtomous key?
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has 2 questions to determine the unknown
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Phylogenic tree?
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diagram, helps show relationships between organisms.
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Includes bacteria that is primitive and doesn't use oxygen.
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Archeobacteria.
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Uses oxygen
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Eubacteria.
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Makes own food?
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Plantae.
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Protozoa, algae, has nucleus, single celled.
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Protista.
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mushrooms, spores, yeast
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fungi
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What are Arthropoda, chordata?
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Phylums
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What is Arthropoda?
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jointed legs, and thick shell
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What is Chordata?
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animals with spinal cord.
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Insecta?
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organism with 3 pairs of legs 3 body segments, have wings.
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mamalia?
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warm blooded, connection between embryo called placenta.
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What does autotrophic mean?
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organismas that make their own food.
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What does heterotrophic mean?
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find their own food.
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your results, variable that happens during experiment.
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Dependent variable.
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what the scientist changes?
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Independent variable.
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the things you keep the same in an experiment.
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control.
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aerobic
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uses oxygen to release energy.
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anaerobic
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doesnt use oxygen to realease energy.
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Chemical energy used by the cell.
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ATP
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cells that have a full set of chromosomes.
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body cells
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sex cells, have 1/2 the chromosomes.
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gametes.
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The fertilized egg is called?
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Zygote.
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what 3 things are in the atom? and what are their charges?
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proton (+), electron (-), and Neutron (+-)
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What does this describe: polar molecule, best solvent, floats when solid?
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Water
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What is pH?
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measurment of acids and bases
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What is the strongest acid?
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1.
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Strongest base?
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14
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Neutral?
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7.
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What is Kinetic Energy?
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Energy in motion
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What is potential energy?
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Energy being stored.
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What is activation energy?
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energy needed to start a reaction
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what is thermal energy?
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heat.
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always have carbon and hydrogen?
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Organic molecules.
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Sugars, starches, and cellulose, are examples of:
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Carbohydrates
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oils and fats are examples of: and they are used for:
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Lipids; energy.
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Proteins are?
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tissues for growing, enzymes.
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DNA, RNA, ATP, are:
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nucleic acids.
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Smallest basic unit of a molecule is a(n)?
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Atom
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How do you find atomic mass?
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Protons + nutrons.
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How do you find the atomic number?
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number of protons.
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What is the solute?
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substance being disolved
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What is the solvent?
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substance doing the disolving.
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what is most dense, and least dense?
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Most-solid, least- gas
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Bonds between atoms sharing electrons are called?
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covalent bonds
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Bonds between atoms giving the electrons are called?
[strongest bond] |
ionic.
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no electrons in this bond? [weakest]
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hydrogen bond
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a molecule the one end has one charge and the other end has a different charge is called?
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a Polar Molecule
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