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Biological Principles: Unit 1 Exam (Brooks) Questions and Answers (GRADED A)
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  • Biological Principles: Unit 1

What is life? - ANSWER_defining life is challenging life is characterized by? - ANSWER_a list of atributes attributes of living things - ANSWER_complex organization growth metabolism movement reproduction responsiveness complex organization - ANSWER_from macromolecules (such as protei...

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  • March 26, 2024
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  • 2023/2024
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Biological Principles: Unit 1 Exam
(Brooks) Questions and Answers
(GRADED A)

What is science? - ANSWER_knowledge attained through study or practice

What is life? - ANSWER_defining life is challenging

life is characterized by? - ANSWER_a list of atributes

attributes of living things - ANSWER_complex organization
growth
metabolism
movement
reproduction
responsiveness

complex organization - ANSWER_from macromolecules (such as proteins, lipids,
carbohydrates) to cells with their organelles, to tissues, organs and systems,
organisms have extreme complexity

growth - ANSWER_organisms can grow typically by producing new cells via mitosis

metabolism - ANSWER_chemical reactions are the basis of life. some release a net
amount of energy (catabolic) while others require a steady amount of energy to
proceed (anabolic). life, or metabolism, is the net result of kinds of reactions.

catabolism - ANSWER_break down molecules, release energy.

anabolism - ANSWER_metabolic pathways that construct molecules, requiring
energy.

movement - ANSWER_the ability to move to locate resources or avoid predation

reproduction - ANSWER_organisms can reproduce (most important)

responsiveness - ANSWER_responding to environmental cues

the scientific method - ANSWER_observation and formulation of hypothesis
test hypothesis
statistical analysis

a hypothesis must be ____ and _____ - ANSWER_testable and falsifiable

, evolution - ANSWER_ALL organisms are related to each other via common ancestry

mechanisms for evolution - ANSWER_acquired characteristics and natural selection

acquired characteristics - ANSWER_alter characteristics during an organisms
lifetime, they then pass it onto their offspring

natural selection - ANSWER_animals produce many offsprings which leads to
variations within them, causing some to have adaptations to increase their survival
rate

vertebrae show - ANSWER_strong evidence of close evolutionary relationship
(similar embryos)

artificial selection - ANSWER_domestication of animals and plants

artificial selection proves the concept of natural selection - ANSWER_humans can
take advantage of the natural mechanisms of reproduction to artificially select
adaptive traits to successfully produce offsprings

basic chemistry of life - ANSWER_chemical reactions are the basis of life.
(metabolism is the net result of both kinds of reaction: catabolic release a net amount
of energy and anabolic require a steady amount of energy)

elements are - ANSWER_components of matter that cannot be broken down into
simpler units with ordinary chemical reactions. also, they are represented as atoms

how many elements occur naturally? - ANSWER_92/100

98% of living things have - ANSWER_SPONCH
sulfur, phosphorus, oxygen, nitrogen, carbon, hydrogen

carbon is - ANSWER_most important

hydrogen is - ANSWER_most abundant

atoms are - ANSWER_composed of subatomic particles (protons, electrons, and
neutrons)

protons and neutrons are found - ANSWER_in the nucleus of an atom

electrons are found - ANSWER_around the nucleus

which model is an accurate depiction of electron location? - ANSWER_electron
cloud model

protons charge and mass - ANSWER_postive and 1 amu

neutrons charge and mass - ANSWER_neutral and 1 amu

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