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Evolutionary Theory
Dating Rocks <3
Miscellaneous
Whatever the devil I felt like asking
Randomness
100
What are the Two Evolutionary Theories that were disproven? Explain what they mean.
Spontaneous Generation: organisms come fully armed for the environment Inheritance of Acquired Characteristics: anything that hppens to the parent will happen to the offspring
100
Explain a half-life.
The amount of time it takes for one half of the parent atoms to radioactively decay
100
Two Giraffes are very similar, but one giraffe has a shorte neck than the other giraffe. Explain how variation would treat the longer-necked giraffe "nicer".
The variation between the two should allow for the taller giraffe to be healthier due to the greater access to food and the taller giraffe is then able to reproduce more than the shorter giraffe.
100
What is a fossil?
A piece of evidence that shows the characteristics of a thing that lived at the time.
100
What was the first super continent called?
Pangaea
200
What are homologous structures?
Similar structures between species
200
What is the difference between the isotopes, parent elements, and the daughter elements?
Isotope: the forms of radioactive elements, changed based on the number of neutrons in the atom Parent Element: the original unstable element Daughter Element: the new more stable element after radioactive decay
200
Which is more accurate, radiometric dating or relative dating and why?
Radiometric dating because it can provide a more exact date than a date range from relative dating.
200
Explain why there might be an ash layer in between rock layers.
A volcanic eruption might have occurred.
200
Explain the phrase "Unity and Diversity".
Although all species on this planet are different, we share common characteristics because of evolution from a common ancestor.
300
What are the four parts of Natural Selection?
Variation Adaptation Selection Genetic Change
300
Waht is radioactive decay?
The break down of the nuclei of an unstable atom to form an atom of the sae element with the same stable isotope over time
300
How do all embryos start out? When do they begin to differ?
A cluster of cells. These cells differentiate when they begin to form certain specific structures.
300
DAILY DOUBLE, and by that I mean NOT. What do fossils that occur in the same layer tell us?
These organisms coexisted.
300
What would happen to the Winter Hare if the it did not snow in the winter (hint, there are white and brown hares and they are eaten by foxes)?
The white winter hare population would decrease while the brown winter hare population increases because the brown one can blend in better than the white one.
400
Name the Five ways to prove Support Evolutionary Theory.
Anatomical Evidence Ebryological Likeness Fossil Record Biochemical Likeness DNA Analysis
400
Explain how to use half-lives to find the date of a fossil.
By looking at the ratio of parent elements to daughter elements in the rock layer where the fossil is located.
400
Explain why the youngest rock layer is on top.
Because the rocks cannot be pumped into the ground, they just end up on top after settling.
400
Which came first, the first bacteria or the first mammal?
The first bacteria because they cells had not yet evolved into the complex structure of a eukaryote cell.
400
Explain how the millions of different species alive today are related be descent from a common ancestor.
The common ancestor split into more and more species after variation, adaptation, selection and genetic change (all natural selection) occurred.
500
Explain Natural Selection.
Organisms with the superior genes/characteristics are able to survive better and are able to produce more offspring.
500
Explain relative dating.
Using the known dates for rock layes above and below the layer specified to estimate the date range.
500
What causes genes in very different organism to be similar?
A common ancestor
500
YES, LAST QUESTION FOR ME TO WRITE! Define Abiotic and Biotic. Explain how these relate to natural selection
Abiotic: nonliving Biotic: living The two can both cause an effect on the population of a given species,such as immigration of wolves that eat rabbits or dry summer.
500
Explain why the finches on the galapagos islands have different beaks.
The food sources there were different depending the island and they evolved so they could easily get the corresponding food source.