Natural Selection
Organisms of a population with favorable traits will....
Survive/ produce offspring/ pass their traits on to their offspring
Name 2 differences between bacteria and viruses
Bacteria reproduce through cell division, viruses require a host cell
Viruses do not contain any cell structures, just protein shell
Name 2 pieces of evidence for evolution
fossils, molecular generics, homologous structures, vestigial structures, biogeography, analogous structures, embryology
List 3 barriers that cause speciation
Geographic, reproductive, mechanical, habitat, behavioral, gametic
What color is biology? (Yes there is a right answer)
Green!
True or false: In populations there are more organisms born than can survive.
(There is a fight for recourses)
True!
Explain endosymbiosis
+ 50 if you mention what organelles are thought to have been created from this
Prokaryotic cells undergoing phagocytosis to eventually create eukaryotic cells (inside cell became mitochondria/ chloroplast)
Which organism would be more closely related to humans, ones that have 1 amino acid difference, or one that has 5 amino acid difference
1!
Greater chance of adapting to a changing environment
If an organism is placed in front of a node, do they have the trait associated with that node?
Yes
Name one similarity and one difference between natural selection and evolution.
Evolution happens over time
Natural selection causes evolution
(both are a response to changing environments)
Explain how mutations cause viruses to be able to survive even though vaccines exist
(Up to Ms. W's discretion)
Explain how homologous structure can prove relatedness between different organisms even if they have different functions?
Explain in detail ONE barrier for speciation
Ms. W's discretion
Explain how vestigial structures prove the idea of a common ancestor
+50 for an example of a vestigial structure and it's original funtion
A population has a high allele frequency of the dominant allele which codes for dark fur. The recessive allele codes for light fur. An environmental change has caused strong winds to blow light sand into the habitat of this population that blends into the ground to hide from predators. Over time what will happen to the allele frequency?
The recessive allele will increase in frequency
What causes bacteria to spread so easily?
Rapid replication
Chose ONE piece of evidence for evolution and explain HOW it proves the theory of evolution
Up to Ms. W's discretion
If two organisms interbreed and their offspring is sterile, are they the same species?
No
What is Ms. Wheeler's Dunkins order
Med iced caramel with oat milk
Name at least 3/5 of Darwin's points of natural selection
1- variation exists in all populations
2- some variations are favorable
3- more offspring are produced than can survive
4- those that do survive will live long enough to reach maturity (reproduce)
5- Favorable traits will be passed from parent to offspring
Challenge question!
Explain why an antibiotic that targets the cell membrane would not help cure a viral sickness.
Viruses don't have a cell membrane
Explain how biogeography is a way to support the idea of speciation and evolution
Different species can form through geographic isolation, but may have started as the same species supporting the idea of a common ancestor
Explain why morphological differences are not enough to consider organisms different species?
Variation exists in all species, have to rely on other ways to differentiate
What is the name of Ms. Wheeler's favorite enzyme?
Flipase/ Flopase