Biology 1402 TTU Held Exam 1
Questions & Answers (Grade A+)
Evolution -
correct answer ✅Change
Natural Selection -
correct answer ✅Cause of change
Adaptation -
correct answer ✅Increase in "fitness"
Heritable Variations -
correct answer ✅Traits capable of being inherited
DNA -
correct answer ✅Universal genetic code
Biome -
correct answer ✅Community of species that are adapted to a
particular environment.
Element -
correct answer ✅A substance that cannot be broken down to
other substances
,Biology 1402 TTU Held Exam 1
Questions & Answers (Grade A+)
Atom -
correct answer ✅The smallest unit of stuff. Particle.
Compound -
correct answer ✅2 or more elements combined
Molecule -
correct answer ✅Atoms of the same element in a covalent bond.
Particle in a compound.
Proton -
correct answer ✅Positively charged, found in nucleus.
Neutron -
correct answer ✅Neutral charge, found in nucleus
Electron -
correct answer ✅Negatively charged, found in electron orbital.
, Biology 1402 TTU Held Exam 1
Questions & Answers (Grade A+)
Atomic Nucleus -
correct answer ✅Atom's central core.
Isotope -
correct answer ✅Same element, different number of neutrons.
Some are radioactive.
Isomer -
correct answer ✅Compounds with same formula, but different
order.
Ion -
correct answer ✅Atom with net charge of +1 or -1, due to gaining
or losing on of electron(s).
Inert elements -
correct answer ✅Don't react. All orbitals are full.
Orbital -
correct answer ✅Orbit/ cloud around nucleus, occupied by an
electron. Sphere or dumbbell shaped.
Questions & Answers (Grade A+)
Evolution -
correct answer ✅Change
Natural Selection -
correct answer ✅Cause of change
Adaptation -
correct answer ✅Increase in "fitness"
Heritable Variations -
correct answer ✅Traits capable of being inherited
DNA -
correct answer ✅Universal genetic code
Biome -
correct answer ✅Community of species that are adapted to a
particular environment.
Element -
correct answer ✅A substance that cannot be broken down to
other substances
,Biology 1402 TTU Held Exam 1
Questions & Answers (Grade A+)
Atom -
correct answer ✅The smallest unit of stuff. Particle.
Compound -
correct answer ✅2 or more elements combined
Molecule -
correct answer ✅Atoms of the same element in a covalent bond.
Particle in a compound.
Proton -
correct answer ✅Positively charged, found in nucleus.
Neutron -
correct answer ✅Neutral charge, found in nucleus
Electron -
correct answer ✅Negatively charged, found in electron orbital.
, Biology 1402 TTU Held Exam 1
Questions & Answers (Grade A+)
Atomic Nucleus -
correct answer ✅Atom's central core.
Isotope -
correct answer ✅Same element, different number of neutrons.
Some are radioactive.
Isomer -
correct answer ✅Compounds with same formula, but different
order.
Ion -
correct answer ✅Atom with net charge of +1 or -1, due to gaining
or losing on of electron(s).
Inert elements -
correct answer ✅Don't react. All orbitals are full.
Orbital -
correct answer ✅Orbit/ cloud around nucleus, occupied by an
electron. Sphere or dumbbell shaped.
