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Biology JCCC Unit 1 Test Guide Questions and Answers
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Biology JCCC Unit 1 Test GuideQuestions and Answers
All 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. - Answer-organism, population.
these large areas interact with the environment, forming a __________. Ultimately all
life exists together as part of the _________. - Answer-community
ecosystem
examples of emerging properties? - Answer-organ system, cells made up of molecules.
7 characteristics of living things? - Answer-1. 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 - Answer-no nucleus
eukaryotes - Answer-have a nucleus.
3 traits that characterize a eukaryote? - Answer-1. nucleus
2. cellular
3. obtaining nutrients
taxonomy - Answer-system of naming and classifying species based on inherited traits.
, species names consist of _____ and ______ - Answer-genus, species
steps of scientific inquiry? - Answer-1. observation
2. hypothesis
3. test it
4. form/test hypothesis/experiment
5. results
science can't_____. - Answer-1. address morals
2. aesthetics
3. philosophical questions
4. the supernatural
scientific theories are hypothesizes that __________. - Answer-hasn't been disproven
after many years of testing.
law of nature has been _________ ex ______ - Answer-revised but not proven, gravity.
protons - Answer-+ charge, nucleus
electrons - Answer-- charge, orbits around nucleus.
neutrons - Answer-no charge, nucleus.
______ are made of atoms with the same atomic number (# of protons). - Answer-
elements.
The number of protons and neutrons determine an element's _______. - Answer-mass
number
Sometimes, the same element can differ in the number of ______ (isotopes) - Answer-
neutrons
Atoms can undergo ______ which occurs when ________. - Answer-radioactive decay,
their nucleus can decay or change over time often changing one element into another.
Taxonomy is used by scientists to determine the _______. - Answer-date of something.
The behavior of atoms is based on their electric _____. - Answer-charges.
Atoms can either ______, ______, or ____ electrons (e-) - Answer-acquire, share,
donate
e- travel around _____. Each holds ___ e-. If there is a vacancy, they can move -
Answer-orbitals, 2.
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