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32 Cards in this Set
- Front
- Back
Living things contain these organic molecules
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Proteins
Carbs Lipids Nucleic Acids |
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Living things are composed of____
What are the two types of these |
Cells
Unicellular and Multicellular |
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Where do cells come from
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pre-existing cells
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Define Biology
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the study of living things or organisms
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metabolism
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all chemical processes taking place within cells of living organisms
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living things grow and reproduce
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continue species through reproduction using gene material
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cell
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the smallest functional unit of life
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living things must obtain ____&____ from the environment
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energy and nutrients
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living things respond to _____ by doing what
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stimuli by sensing changes in the environment and responding to them
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How do plants obtain energy and nutrients?
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Plants maintain energy from the sun and obtain nutrients from the soil
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Stimuli
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change causes a response in an environment
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living things maintain homeostasis
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living things maintain homeostasis
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homeostasis
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the ability to maintain a steady state of equilibrium in the internal environment
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external environments
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conditions outside the body
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internal environments
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conditions inside the body
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homeostatic mechanisms
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processes inside your body to regain or maintain homeostasis when you are faced with stresses that push us out of range
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what age group has the most homeostatic problems
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infants and the elderly
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Four reasons that Infants have problems maintaining homeostasis
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1)Small body size
2) homeostatic mechanisms not fully functioning 3)cant act on signals, they need help 4)dont always sweat enough to cool them down |
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Why do the elderly have problems maintaining homeostasis
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they gradually lose their sensitivity to coldness as they get older
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populations of living things _____and have ________ traits
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Evolve
adaptive |
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How does each population have the ability to be successful(live and reproduce)
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Through Natural selection
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Adaptive traits
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genetic traits (determining structure and function ) that help an organism be successful
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Natural selection
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Means by which over millions of years, organisms evolved to have certain traits
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Adaptations
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lead to biodiversity
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Levels of Biological Organization
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Molocule
Cell tissue Organ Organ system Organism --------------- Ecology |
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What is required to maintain organization
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Energy
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Levels of Biochemistry
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Biochemistry/ molecular biology
cytology histology anatomy and physiology |
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How are structure and function related?
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How something is structured depends on what it needs to do to correctly function
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3 Ways we can consider Biology a science
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1) Science is Objective not subjective
2) Helps humans understand the natural world. 3) Conclusions may change or modify. |
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Objective
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observed using senses
factual measurable |
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Subjective
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Personal Opinion
Values Bias |
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Steps of the scientific method
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Observe
Hypothesize Analyze report or publish |