Homework Answers
ANSWER
- option E is correct.
- The accumulation of of oxygen molecule in earth's atmosphere began with the emergence of The first photosynthetic bacteria ie, cyanobacteria.
cyanobacteria
- Also called BLUE-GREEN ALGAE
- Contains chlorophyll A so they are photosynthetic autotrophic bacteria.
- they are unicellular organism which are existed in colonial or filamentous form.
- HABITAT - fresh water or marine.
- They are the most primitive oraganism on earth which produce oxygen on earth atmosphere for the first time.
- so they are called first photosynthetic bacteria.
- example for cyanobacteria are nostoc & anabaena
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QUESTION 28 The accumulation of O2 in Earth's atmosphere began with the emergence of O A...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
QUESTION 36 Where does the Calvin cycle take place in algae and plants O A. Stroma...
QUESTION 36 Where does the Calvin cycle take place in algae and plants O A. Stroma of the chloroplast B. None of these answers are correct OC. Cytoplasm surrounding the chloroplast OD. On the thylakoid membrane E. Interior of the thylakold (thylakoid space) F. Outer membrane of the chloroplast
2 pts Question 1 Where did most of the water and carbon dioxide from Earth's early...
2 pts Question 1 Where did most of the water and carbon dioxide from Earth's early atmosphere go (order is water then carbon dioxide)? O both into ocean O water into ocean carbon dioxide into plants O water into plants carbon dioxide into ocean O both went into plants Question 2 2 pts How long ago did life on earth emerge (according to science)? 3.9 billion years 600 million years ago 23 million years ago 13.8 billion years ago D...
QUESTION 1 while the partial pressure of the atmosphere remains constant, the fractional compostion changes dependi...
QUESTION 1 while the partial pressure of the atmosphere remains constant, the fractional compostion changes depending on the total pressure. O True False QUESTION 2 energy. Energy released from an object and transmitted via particles or waves is referred to as OA Mechanical C Electrical ,°C. Radiant D.Chemical QUESTION 3 The first living organism on planet Earth was most likely a A Photosynthetic autotroph B. heterotroph (herbivore) o C. Heterotroph (carnivore) O D. Chemoautolithotroph
QUESTION 1 while the partial pressure...
Question 3 The current partial pressure of Co, in the Earth's atmosphere is 3.9 · 104...
Question 3 The current partial pressure of Co, in the Earth's atmosphere is 3.9 · 104 atm. If the Henry's law constant is 2.3 · 10M/atm, calculate the equilibrium concentration of dissolved CO2 in bodies of water. Incorrect 0.00 points out of 0.30 p Flag question Select one: A. 1.7 x 10PM © B. 59 M X C. 9.0 x 100M O D. 9.0 x 100M
I will give thumbs up and really appreciate it. Thank you! For these questions, refer to...
I will give thumbs up and really appreciate it. Thank
you!
For these questions, refer to the graph below, which shows atmospheric O2 levels throughout Earth's history 3. 35 O2 levels were almost 50% higher than present. Giant flying insects 30 Invasion First of land chordates 25 First plants 20 First eukaryotes 15 First photosynthetic multicellular cyanobacteria eukaryotes 02 levels were 25-40% lower than present. O 10 Rapid drop of 02 levels occurred at end of the Permian. First 5...
question 23 to 28 pls DUC 120°C 23. The complex inten thermop! terdependency of the 200...
question 23 to 28 pls
DUC 120°C 23. The complex inten thermop! terdependency of the 200 species of bacteria that inhabit the human mouth a. Quorem (Б.Biofilm c. Population d. Microcosm e. Family 24. Enzymes such as super zymes such as superoxide dismutase and catalase are important because y allow an organism to tolerate the accumulation of fermentation product b. They eliminate reactive oxygen species They are important components of the respiratory electron transport system d Answers A and B...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
of none of the above QUESTION 10 The Uribe and Jagendorf acid bath experiment provided the...
of none of the above QUESTION 10 The Uribe and Jagendorf acid bath experiment provided the first direct evidence in support of Mitchell's chemiosmotic coupling hypothesis. Which of the following is correct regarding the experiment? O It was conducted using chloroplasts membranes o It showed that a pH gradient could drive ATP synthesis separate from electron transport o It was camed out using mitochondna membranes o It was conducted using intact bacteria O Both A and B above of Both...
QUESTION 17 Which of the following roles do protists play in ecological communities? A. Digestion of...
QUESTION 17 Which of the following roles do protists play in ecological communities? A. Digestion of cellulose in termite guts B. Fish kills O C. Primary production in aquatic environments D. None of the possible answers is correct O E. "A", "B", and "C" are correct VOLTUIN 21 21. Which of the following set of characteristics defines a fungus? A. Photosynthetic, composed of mycelia that form hyphae Heterotrophic, composed of mycelia that form hyphae May function as decomposers or parasites...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
QUESTION 36 Where does the Calvin cycle take place in algae and plants O A. Stroma of the chloroplast B. None of these answers are correct OC. Cytoplasm surrounding the chloroplast OD. On the thylakoid membrane E. Interior of the thylakold (thylakoid space) F. Outer membrane of the chloroplast
2 pts Question 1 Where did most of the water and carbon dioxide from Earth's early atmosphere go (order is water then carbon dioxide)? O both into ocean O water into ocean carbon dioxide into plants O water into plants carbon dioxide into ocean O both went into plants Question 2 2 pts How long ago did life on earth emerge (according to science)? 3.9 billion years 600 million years ago 23 million years ago 13.8 billion years ago D...
QUESTION 1 while the partial pressure of the atmosphere remains constant, the fractional compostion changes depending on the total pressure. O True False QUESTION 2 energy. Energy released from an object and transmitted via particles or waves is referred to as OA Mechanical C Electrical ,°C. Radiant D.Chemical QUESTION 3 The first living organism on planet Earth was most likely a A Photosynthetic autotroph B. heterotroph (herbivore) o C. Heterotroph (carnivore) O D. Chemoautolithotroph
QUESTION 1 while the partial pressure...
Question 3 The current partial pressure of Co, in the Earth's atmosphere is 3.9 · 104 atm. If the Henry's law constant is 2.3 · 10M/atm, calculate the equilibrium concentration of dissolved CO2 in bodies of water. Incorrect 0.00 points out of 0.30 p Flag question Select one: A. 1.7 x 10PM © B. 59 M X C. 9.0 x 100M O D. 9.0 x 100M
I will give thumbs up and really appreciate it. Thank
you!
For these questions, refer to the graph below, which shows atmospheric O2 levels throughout Earth's history 3. 35 O2 levels were almost 50% higher than present. Giant flying insects 30 Invasion First of land chordates 25 First plants 20 First eukaryotes 15 First photosynthetic multicellular cyanobacteria eukaryotes 02 levels were 25-40% lower than present. O 10 Rapid drop of 02 levels occurred at end of the Permian. First 5...
question 23 to 28 pls
DUC 120°C 23. The complex inten thermop! terdependency of the 200 species of bacteria that inhabit the human mouth a. Quorem (Б.Biofilm c. Population d. Microcosm e. Family 24. Enzymes such as super zymes such as superoxide dismutase and catalase are important because y allow an organism to tolerate the accumulation of fermentation product b. They eliminate reactive oxygen species They are important components of the respiratory electron transport system d Answers A and B...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
of none of the above QUESTION 10 The Uribe and Jagendorf acid bath experiment provided the first direct evidence in support of Mitchell's chemiosmotic coupling hypothesis. Which of the following is correct regarding the experiment? O It was conducted using chloroplasts membranes o It showed that a pH gradient could drive ATP synthesis separate from electron transport o It was camed out using mitochondna membranes o It was conducted using intact bacteria O Both A and B above of Both...
QUESTION 17 Which of the following roles do protists play in ecological communities? A. Digestion of cellulose in termite guts B. Fish kills O C. Primary production in aquatic environments D. None of the possible answers is correct O E. "A", "B", and "C" are correct VOLTUIN 21 21. Which of the following set of characteristics defines a fungus? A. Photosynthetic, composed of mycelia that form hyphae Heterotrophic, composed of mycelia that form hyphae May function as decomposers or parasites...
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