1. Over what proportion of the earth’s history were there only single-celled living organisms? ______ 2....
1. Over what proportion of the earth’s history were there only single-celled living organisms? ______
2. Over what proportion of the earth’s history have multi-celled organisms existed? ______
3. Over what proportion of the earth’s history have mammals been a dominant part of the fauna? ____
4. Over what proportion of the earth’s history have modern humans existed? ______
Homework Answers
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1. Over what proportion of the earth’s history were there only
single-celled living organisms? ______
2....
2) Earth’s oceans contains 1027 cells of Prochlorococcus, a tiny single-celled cyanobacterium. They have a generation...
2) Earth’s oceans contains 1027 cells of Prochlorococcus, a tiny single-celled cyanobacterium. They have a generation time of approximately 1 generation per day. One of them gets a mutation that increases its exponential growth rate by 5%. The total Prochlorococcus population size is virtually constant from day to day: as many are killed by phage as are born by cell division. a. What is the exponential growth rate of the ancestor? The mutant? b. Assuming the ocean is well-mixed and...
1. Why is taxonomy (the scheme of naming living organisms) so important in Biology? 2. How...
1. Why is taxonomy (the scheme of naming living organisms) so important in Biology? 2. How does a virus differ from all living organisms? 3. How does a virus affect a living organism? Give at least one specific example. 4. How has the excessive use of antibiotics resulted in a major global problem? 5. How are plants and animals dependent on each other? Give some specific examples. 6. What do the fungi and animals have in common? 7. Which types...
1. Identify all of the accounting standards board that have existed in US business history. 2....
1. Identify all of the accounting standards board that have existed in US business history. 2. What was their sponsoring organization? 3. What was their objective? 4. What did they achieve? 5. Why were they replaced?
1. What are the different sources of energy available to living organisms? 2. How do the...
1. What are the different sources of energy available to living organisms? 2. How do the acquisition and the use of energy by living organisms work according to the laws of thermodynamics? 3. Explain the energy use in the following reactions: endergonic/exergonic. 4. What is metabolism? How are chemical reactions related to metabolism? Why is energy needed to run a metabolism? What are coupled reactions? 5. Draw a picture of ATP. Why is this molecule so important for cells? How...
1. What kinds of marine mammals have been found in Oregon? Who were the 3 most...
1. What kinds of marine mammals have been found in Oregon? Who were the 3 most prolific collectors or workers in marine mammal paleontology? 2. What kind of fish was the sabre-toothed Smilodonichthyes? How big was it? How did it feed? Where was it found? 3. Who were the Associates? What did they do to further Oregon paleontology? Which university did they represent? 4.. What was Enteledon? What was its diet? What is their modern descendent? 5. What is the...
1) what body parts are prominent in mammals? Reptiles? 2) what body parts do reptiles (tortoise)...
1) what body parts are prominent in mammals?
Reptiles?
2) what body parts do reptiles (tortoise) and birds (chick) have in
common? why?
3) in the early stages, what body parts do humans have in common
with reptiles, birds, and other mammals? why?
4)what species has the biggest brain weight to body ratio? why?
Embryology Anchoring Event 1. What body parts are more prominent in: a. Reptiles? b. Mammals? I 2. What body parts do reptiles (tortoise) and birds (chick)...
20. Feathers are… 1. Living structures that continue to grow longer as the bird gets older....
20. Feathers are… 1. Living structures that continue to grow longer as the bird gets older. 2. Never shed except by accident. 3. Shed in a highly orderly manner. 4. Usually shed all at once and then gradually replaced. 5. Replaced only after one is lost 18 21. The ancestor of terrapins belongs to the subclass… 1. Diapsida. 2. Synapsida. 3. Parapsida. 4. Anapsida. 5. None of the above. 22. In birds the nitrogenous waste products of metabolism are eliminated...
Experiment 9: Pre-Lab Questions 1. Why is respiration important for living organisms? 2. (Circle one) a....
Experiment 9: Pre-Lab Questions 1. Why is respiration important for living organisms? 2. (Circle one) a. Yeast is heterotrophic or autotrophic b. TRUE OR FALSE. Yeast can carry out both aerobic and anaerobic cellular respiration. 3. What gas will be produced by the yeast, making the balloon bigger? 4. Explain the difference between aerobic respiration and anaerobic respiration. Which is more efficient in terms of energy? 5. What is the purpose of using various temperatures in this experiment? Explain 116
(a) What is the genotype of individual I-1? (b) What is the genotype of individual I-2?...
(a) What is the genotype of individual I-1?
(b) What is the genotype of individual I-2?
(c) What is the genotype of individual IV-3?
(d) What is the genotype of individual IV-6?
PART B
If individuals IV-3 and IV-6 were to have children:
(e) What is the probability that these children will express
this X-linked dominant trait? %
(f) If they only have sons, what is the probability that these
sons will express this X-linked dominant trait?
%
(g) If...
1. Why are both sponges and corals hardened? What benefit does this give the organisms? 2....
1. Why are both sponges and corals hardened? What benefit does this give the organisms? 2. Compare and contrast the different morphs in Cnidaria in terms of movement, shape, complexity, etc. 3. Sponges and cnidarians have no lungs or gills. How do they exchange gases with the environment? Are humans better off having lungs? Why/why not?
1. What are the different sources of energy available to living organisms? 2. How do the acquisition and the use of energy by living organisms work according to the laws of thermodynamics? 3. Explain the energy use in the following reactions: endergonic/exergonic. 4. What is metabolism? How are chemical reactions related to metabolism? Why is energy needed to run a metabolism? What are coupled reactions? 5. Draw a picture of ATP. Why is this molecule so important for cells? How...
1) what body parts are prominent in mammals?
Reptiles?
2) what body parts do reptiles (tortoise) and birds (chick) have in
common? why?
3) in the early stages, what body parts do humans have in common
with reptiles, birds, and other mammals? why?
4)what species has the biggest brain weight to body ratio? why?
Embryology Anchoring Event 1. What body parts are more prominent in: a. Reptiles? b. Mammals? I 2. What body parts do reptiles (tortoise) and birds (chick)...
Experiment 9: Pre-Lab Questions 1. Why is respiration important for living organisms? 2. (Circle one) a. Yeast is heterotrophic or autotrophic b. TRUE OR FALSE. Yeast can carry out both aerobic and anaerobic cellular respiration. 3. What gas will be produced by the yeast, making the balloon bigger? 4. Explain the difference between aerobic respiration and anaerobic respiration. Which is more efficient in terms of energy? 5. What is the purpose of using various temperatures in this experiment? Explain 116
(a) What is the genotype of individual I-1?
(b) What is the genotype of individual I-2?
(c) What is the genotype of individual IV-3?
(d) What is the genotype of individual IV-6?
PART B
If individuals IV-3 and IV-6 were to have children:
(e) What is the probability that these children will express
this X-linked dominant trait? %
(f) If they only have sons, what is the probability that these
sons will express this X-linked dominant trait?
%
(g) If...
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