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REVIEW FOR EXAM #1 SPEERS BIOLOGY 1610 SLCC QUESTIONS AND ANSWERS $12.49   Add to cart

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REVIEW FOR EXAM #1 SPEERS BIOLOGY 1610 SLCC QUESTIONS AND ANSWERS

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REVIEW FOR EXAM #1 SPEERS BIOLOGY 1610 SLCC QUESTIONS AND ANSWERS

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  • August 8, 2024
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  • Questions & answers
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REVIEW FOR EXAM #1 SPEERS
BIOLOGY 1610 SLCC QUESTIONS AND
ANSWERS
Emergent properties - Answer-results from the arrangement and interaction of parts
within a system

Reductionism - Answer-Complex systems are reduced to simpler components

Evolution- two precepts - Answer-Descent with modification (gradual change)

Prokaryotic vs. Eukaryotic - Answer-Prokaryotic- simple cells with no nucleus
Eukaryotic- complex cells with nucleus and much bigger

The 3 biological domains - Answer-Bacteria, Archaea, Eukarya

The 4 groups of eukaryotes - Answer-animals, plants, fungi, protist

Darwin- what is it and what is it NOT - Answer-Natural selection- it is NOT survival of
the fittest

Deduction vs. Induction - Answer-deduction: general to specific
induction- specific to general

Scientific Method - Answer-A series of steps to plan and carry out investigations

Hypothesis vs. Theory - Answer-Hypothesis- a testable observation
Theory- supported by a large body of evidence

What is true about a good hypothesis? - Answer-It must be testable

What does falsifiable mean? - Answer-Can be ruled out by data

4 main elements of life - Answer-carbon, hydrogen, oxygen, nitrogen

Trace elements - Answer-an element indispensable for life but required in extremely
minute amounts.

Elements & Isotopes - Answer-Elements- any substance that cannot be broken down to
any other substance by chemical reactions
Isotopes- Different forms of the same element. Different number of neutrons.

Atoms - Answer-Smallest unit of matter

, Where is a proton located and what is the electrical charge? - Answer-Proton is located
in nucleus of an atom and is a single positive electrical charge

Where is the neutron located and what is the electrical charge? - Answer-Neutron is
found in the nucleus of an atom and has a neutral charge

Where is the electron located and what is the electrical charge? - Answer-Electrons
revolve around the nucleus and is negatively charged

Which particle defines or distinguished different elements? - Answer-Protons

What does the atomic number represent? - Answer-The number of protons in an atom

What does the mass number represent? - Answer-Total number of protons and
neutrons in an atom

What can we estimate using the mass number? - Answer-Estimate the atomic mass in
daltons (approx. 4)

What is Dalton? - Answer-Unit of measurement

Which particle distinguished different isotopes of the same element? What is true about
isotopes of the same element? - Answer-Neutrons and the number of neutrons

Which particle determines the chemical behavior of an atom? - Answer-Electrons

reactants and products - Answer-substances that exist before a reaction; substances
that exist after the reaction

potential energy vs. kinetic energy - Answer-potential: stored energy Kinetic: energy of
motion

Valence - Answer-unpaired electrons in its outermost shell

octet rule - Answer-atoms react by gaining or losing electrons or share electrons to have
8 electrons in their outer electron shell

duet rule - Answer-hydrogen forms stable molecules when it shares two electrons

Why are noble gases unreactive? - Answer-They have a full outer shell

covalent bond - Answer-A chemical bond formed when two atoms share electrons

ionic bond - Answer-A chemical bond resulting from the attraction between oppositely
charged ions

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