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16 Cards in this Set
- Front
- Back
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What are the 7 basic criteria to living things? |
1. Order 2. Grow and Develop 3. Energy Utilization 4. Homeostasis 5. Respond to stimuli 6. Reproduce 7. Evolve and become adapted to the environment |
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What are 6 important biological concepts? |
1. Biological hierarchy 2. Ecosystem Dynamics - energy conversion 3. Information transfer (a cells heritage information) 4. Biological classification (3 domains of life) 5. Evolution 6. Scientific method |
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What is an atom? |
Basic unit of matter, small, dense Positively charged nucleus surrounded by negatively charged electrons |
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What are Molecules?
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made up of more than one atom
examples salt, water, sugar, protein etc. |
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What is a Cell? |
It is the smallest unit oflife that is classified asa living thing Sometimes called the building block of life |
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What is an organism? |
Independent living unit
Vary in size and complexity Unicellular organisms: a singlecell carries out all thefunctions of life (ex. bacteria) Multicellular organisms: madeof many cells that arespecialized for differentfunctions |
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What is an ecosystem? |
The community of organisms present in a particular typeof area and their interactions with the physical surroundings
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What is the Biosphere? |
is the part of the earth,including air, land, surfacerocks, and water, withinwhich life occurs (basicallyall of earth’s ecosystemstogether) |
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What are the two major processes of ecosystem Dynamics? |
1. The cycling of nutrients 2. The flow of energy from sunlight to producers toconsumers. |
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What is DNA? |
All cells containdeoxyribonucleic acid(DNA) The heritablematerial that directsthe cell’s activities. Basic blue print of anorganism Living things must have aset of instructions thatallow them to grow,develop, respond tostimuli, reproduce Those “instructions” arelocated in DNA DNA is made up of genes |
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What are genes? |
Genes are the units of inheritance thattransmit information from parentsto offspring. |
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What are characteristics shared by all cells? |
Enclosed by amembrane Use DNA as geneticinformation |
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What are the two main forms of cells? |
1. Prokaryotic: lackorganelles; DNA not separated in anucleus. 2. Eukaryotic: dividedinto organelles; DNAin nucleus. |
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What is the Hierarchy of Taxonomic Classification? |
Domain -> Kingdom -> Phylum -> Class -> Order ->Family -> Genus -> Species |
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What are the three domains of life? |
1. Bacteria(prokaryotes)
2. Archaea(prokaryotes)
3. Eukarya (eukaryotes): Eukaryotes include protists and thekingdoms Plantae,Fungi, Animalia....etc |
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What are the main steps of natural selection? |
1. Organisms in a population are notexactly alike (have different traits) 2. Organisms, reproduce, and mustcompete for resources to survive 3. Individuals that are better adapted toobtain resources, more likely tosurvive and reproduce 4. Survivors that reproduce pass ontheir traits (i.e. genes that arefavorable for survival) |
