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Biology JCCC Unit 1 Test Questions and Answers 2024
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Biology JCCC Unit 1 Test
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Biology JCCC Unit 1 TestAll living things (living or not) are made of ______, the building blocks of matter. -
answer atoms.
atoms combine and form _________ (water, carbs, proteins) - answer molecules
Many molecules organize to form _______ the smallest unit of life, which live and
reproduce as individuals or as multicellular organisms. - answer cells
many cells living together to perform a task are called ________. - answer tissues.
These interacting tissues from a structural unit called an _________. Together these
work together and perform new tasks as ___________. - answer organ system.
after an organ system, an _______ emerges. - answer organism
many organisms living together form a _______ which then forms a ___________ of
multiple species living together. - answerorganism, population.
these large areas interact with the environment, forming a __________. Ultimately all
life exists together as part of the _________. - answercommunity
ecosystem
examples of emerging properties? - answerorgan system, cells made up of molecules.
7 characteristics of living things? - answer1. order (cells, organ system)
2. produce their own kind (reproduction, all living things)
3. energy/nutrients from the sun
4. sense and respond
5. regulate internal environment
6. undergo evolutionary adaptations
bacteria and arcea - answerno nucleus
eukaryotes - answerhave a nucleus.
3 traits that characterize a eukaryote? - answer1. nucleus
2. cellular
3. obtaining nutrients
taxonomy - answersystem of naming and classifying species based on inherited traits.
, species names consist of _____ and ______ - answergenus, species
steps of scientific inquiry? - answer1. observation
2. hypothesis
3. test it
4. form/test hypothesis/experiment
5. results
science can't_____. - answer1. address morals
2. aesthetics
3. philosophical questions
4. the supernatural
scientific theories are hypothesizes that __________. - answerhasn't been disproven
after many years of testing.
law of nature has been _________ ex ______ - answerrevised but not proven, gravity.
protons - answer+ charge, nucleus
electrons - answer- charge, orbits around nucleus.
neutrons - answerno charge, nucleus.
______ are made of atoms with the same atomic number (# of protons). -
answerelements.
The number of protons and neutrons determine an element's _______. - answermass
number
Sometimes, the same element can differ in the number of ______ (isotopes) -
answerneutrons
Atoms can undergo ______ which occurs when ________. - answerradioactive decay,
their nucleus can decay or change over time often changing one element into another.
Taxonomy is used by scientists to determine the _______. - answerdate of something.
The behavior of atoms is based on their electric _____. - answercharges.
Atoms can either ______, ______, or ____ electrons (e-) - answeracquire, share,
donate
e- travel around _____. Each holds ___ e-. If there is a vacancy, they can move -
answerorbitals, 2.
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