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43 Cards in this Set
- Front
- Back
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d&c 59 |
lord gave us earth for our benefit. pleasing to the eye and enjoyable. but we must give him credit and acknowledge his hand in all things.
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d&c 104 |
we are stewards over the earth. |
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Sources of variation |
Gene mutation (new) Crossing over (shuffle) Separation of alleles (shuffle) Independent assortment (shuffle) Fertilization (shuffle) |
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Habitat: |
an organism’s "address" |
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Niche |
an organism's job |
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What is the habitat and niche for humans?
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Habitat is any place "liveable" with water food and shelter. Our niche is to help replenish the Earth and to bring to pass God’s eternal plan |
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Biggest Extinction |
Permian |
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RTTR |
Replication, transcription, translation, and regulation.
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central dogma of biology |
dan makes rna makes protein |
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solar energy |
Solar energy, less than 1% of solar energy goes to living organsisms
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biotic |
Biotic: involving life
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abiotic |
not involving life |
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How does energy flow through ecosystems?
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trophic levels |
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biochemical cycles |
Carbon Cycle, Nitrogen cycle
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exponential curves |
Exponential curves - species interacting. More and more. |
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what makes life? |
1. Evolve
only rodents grow under rapid rivers everywhere |
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hypothesis for origin of life |
1. Origin of self-replicating molecules
always admire fat orangoutangs |
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Spontaneous generation |
: the hypothesis that life can arise regularly from nonliving matter
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panspermia |
the hypothesis that life exists throughout the universe. |
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Phylogenetic Tree of Life - 3 main branches |
1. Eucaryota
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extremophiles |
Extremophiles - microbe that lives in an extreme environment. (technically, its anything living in such conditions)
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hubris |
Hubris: excessive amount of pride, prideful
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aristotle |
Aristotle - 384 BC, died 322 BC - good field biologist he was. Developed the idea of a chain or ladder of life; all connected. "everything was its own link in the chain. |
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artificial selection |
Artificial selection - Bovine. We (humans) figured out breeding for special things. Breeding for the best milk producer. |
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who's the father of evolution? |
Charles Darwin didn't come up with the idea of Evo., but his Grandfather Arastus and Lamarck. |
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darwin |
* Naturalist |
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Natural Selection |
Overproduction - Cod and a million eggs, humans and around 10. maybe. Limited resources - Not enough for all of 'em. Genetic variation - genders, size, characteristics. Survival of the adequate -Just have to be adequate really. Octopi Love Great Sharks (Always - adequate)
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darwin's theory of evolution by natural selection |
A population can change through time (evolve) when individuals differ in one or more heritable traits that are responsible for differences in the ability to survive and reproduce. |
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evidence of evolution |
1. Molecular biology
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synamorphy |
Synapomorphy- shared new characteristics, novelties, something new comes around and all descendants have it
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homology |
Homology- similarities necessary to draw a diagram (One bone two bones many bones)
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monophyly |
Monophyly- common descent from a single ancestor
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Parsimony |
Parsimony - The simplest use is the best. Occam's razor - One should not increase, beyond what is necessary, the number of entities required to explain anything. Keep it simple! * When two or more solutions are possible, take the simplest one which explains ALL the FACTS. |
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homoplasy |
Homoplasy: (mistake in homology) Porpoise - what is it? Fish? No, mammal, cuz it has nipples!! |
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convergence |
Convergence - : change to look like something else (bats and birds) became similar for a similar reason, yet not at all.
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reversal |
Reversal - snakes and worms: don't have a backbone, eyes, tongues? Lizards and snakes - yes :) |
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thermoregulation |
Thermoregulation - warm blooded vs cold blooded
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cladogram of life, vascular |
1. Angiosperms - has the most species!!!!: flowering plants
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pollination strategies |
Wind Insect: if yellow or blue more likely for insect to pollinate Bird: hummingbirds like red flowers Mammal None!!! Weird Instructors Broke My Nose |
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fruits |
Fruits: mature ovaries of flowering plants.
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General Animal Characteristics:
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1. Bodies contain collagen, a protein
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life cycle |
Meiosis (Haploid) Fertilization - sex (becomes diploid at this point) Mitosis Blastula - hollow ball, cells form walls Early gastrula Later gastrula - future middle layer of cells, mesoderm 3 layers of tissue: Outer - ectoderm Middle layer - mesoderm Inner cell layer - endoderm Larva |
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general body planes |
symmetry cephalization type of gut body cavities segmentation tissue differentiation |
