Wednesday, April 30, 2014
Tuesday, April 29, 2014
Monday, April 14, 2014
Study Guide Answers
Study Guide Answers:
1. The theory that chloroplasts and mitochondria are descendants of Eubacteria. The four factors that support this are size and structure, genetic material, ribosomes, and reproduction. (BE ABLE TO EXPLAIN THE FOUR FACTORS!)
2. The theory of evolution states that all living things have changed over time. Natural selection is the process that leads to evolution.
3. Charles Darwin
4. Malthus
5. Punctuated Equillibrium and Gradualism
6. True
7. Carrying Capacity
8. Natural Selection
9. Yes, antibiotics kill living bacteria
10. No, viruses are not living
11. Simple to Complex
12. Similar amino acid sequences indicate a recent common ancestor and a close evolutionary relationship.
13. Homologous: Similar structure, different function (Recent common ancestor)
Analogous: Different structure, similar function (Not closely related)
Vestigial: Structures that are reduced in size or function
14. Scientists compare anatomy of different organisms to provide evidence for the theory of evolution.
15. Selective breeding or artificial selection
16. So they produce enough eggs so that some survive the challenges of the environment.
17. Cladogram
1. The theory that chloroplasts and mitochondria are descendants of Eubacteria. The four factors that support this are size and structure, genetic material, ribosomes, and reproduction. (BE ABLE TO EXPLAIN THE FOUR FACTORS!)
2. The theory of evolution states that all living things have changed over time. Natural selection is the process that leads to evolution.
3. Charles Darwin
4. Malthus
5. Punctuated Equillibrium and Gradualism
6. True
7. Carrying Capacity
8. Natural Selection
9. Yes, antibiotics kill living bacteria
10. No, viruses are not living
11. Simple to Complex
12. Similar amino acid sequences indicate a recent common ancestor and a close evolutionary relationship.
13. Homologous: Similar structure, different function (Recent common ancestor)
Analogous: Different structure, similar function (Not closely related)
Vestigial: Structures that are reduced in size or function
14. Scientists compare anatomy of different organisms to provide evidence for the theory of evolution.
15. Selective breeding or artificial selection
16. So they produce enough eggs so that some survive the challenges of the environment.
17. Cladogram
4/14/14
Principals of Natural Selection: (Be able to explain)
1. All species have genetic variation
2. The environment presents many different challenges to an individuals ability to reproduce
3. Organisms tend to leave more offspring than they can support so individuals of a species often compete to survive.
4. Individuals within a population that are better able to cope with the changes of their environment tend to leave more offspring.
5. The traits of the individual best suited to a particular environment tend to increase in a population over time.
Endosymbiosis- The theory that proposes mitochondria and chloroplasts are the descendants of symbiotic aerobic eubacteria.
Four factors that support the theory:
1. Size and Structure- Mitochondria are about the same size as eubacteria and have two membranes.
2. Genetic Material- Mitochondria have circular DNA similar to DNA in bacteria. Both mitochondria and chloroplasts have DNA different than the nucleus of the cell.
3. Ribosomes- Mitochondrial and bacterial ribosomes are similar in size and structure.
4. Reproduction- Like bacteria, mitochondria and chloroplasts reproduce by fission.
1. All species have genetic variation
2. The environment presents many different challenges to an individuals ability to reproduce
3. Organisms tend to leave more offspring than they can support so individuals of a species often compete to survive.
4. Individuals within a population that are better able to cope with the changes of their environment tend to leave more offspring.
5. The traits of the individual best suited to a particular environment tend to increase in a population over time.
Endosymbiosis- The theory that proposes mitochondria and chloroplasts are the descendants of symbiotic aerobic eubacteria.
Four factors that support the theory:
1. Size and Structure- Mitochondria are about the same size as eubacteria and have two membranes.
2. Genetic Material- Mitochondria have circular DNA similar to DNA in bacteria. Both mitochondria and chloroplasts have DNA different than the nucleus of the cell.
3. Ribosomes- Mitochondrial and bacterial ribosomes are similar in size and structure.
4. Reproduction- Like bacteria, mitochondria and chloroplasts reproduce by fission.
Friday, April 11, 2014
Monday, April 7, 2014
4/7/14
Unit 2 Announcements!
Unit 2 Test is on Tuesday, April 15th.
There will be a test review after school on Friday, April 11th.
Unit 2 Test is on Tuesday, April 15th.
There will be a test review after school on Friday, April 11th.
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