why is the formation of free oxygen crucial to the development of terrestrial life forms?
Answers
The formation of free oxygen played a crucial role in the evolution and development of terrestrial life forms, enabling the establishment of aerobic metabolism, protection from harmful UV radiation, and the creation of diverse ecological interactions.
The formation of free oxygen, particularly through the process of photosynthesis, is crucial to the development of terrestrial life forms for several reasons:
Oxygen as a respiratory gas: Many organisms, including animals, require oxygen for respiration. Oxygen serves as the final electron acceptor in the electron transport chain, which is essential for generating energy in the form of ATP. The availability of free oxygen in the atmosphere allows aerobic organisms to thrive and carry out efficient respiration.Ozone layer formation: Oxygen molecules in the upper atmosphere can react with ultraviolet (UV) radiation from the Sun to form ozone (O3) molecules. The ozone layer acts as a protective shield, absorbing much of the Sun's harmful UV radiation. This protection is crucial for preventing excessive UV radiation from reaching the Earth's surface, as high levels of UV radiation can be damaging to living organisms.Aerobic metabolism: Oxygen is necessary for aerobic metabolism, which is a highly efficient way of producing energy in organisms. Aerobic metabolism allows for the complete oxidation of organic molecules, providing organisms with more energy compared to anaerobic processes. The availability of oxygen enables terrestrial organisms to carry out aerobic metabolism, supporting their growth, development, and overall survival.Ecological interactions: The presence of oxygen in terrestrial environments allows for the establishment of diverse ecological interactions. For example, oxygen supports the colonization of land by aerobic bacteria, fungi, and plants, which in turn provide habitats and resources for other organisms. The availability of oxygen also facilitates the evolution of complex multicellular organisms and the development of intricate ecosystems.To know more about UV radiation
brainly.com/question/4144192
#SPJ11
Related Questions
What is the terminal electron acceptor in oxygenic photosynthesis?Choose one: A. oxygen B. water C. quinone D. ATPE. NADP+
Answers
The terminal electron acceptor in oxygenic photosynthesis is A. oxygen.
During oxygenic photosynthesis, light energy is used to generate ATP and NADPH, which are then utilized to convert carbon dioxide into glucose. In this process, water molecules are split in the light-dependent reactions, releasing oxygen as a byproduct. The oxygen produced serves as the terminal electron acceptor, accepting electrons from the electron transport chain and ultimately forming molecular oxygen.
The correct option for the terminal electron acceptor in oxygenic photosynthesis is A. oxygen. This process is vital for the production of oxygen and the subsequent energy storage in the form of ATP and NADPH, enabling the synthesis of organic molecules such as glucose.
To know more about photosynthesis click here:
https://brainly.com/question/29764662
#SPJ11
I have this project in science. We made a synthetic cell using clay. One of the questions is plan out an investigation to discover is a structure is living or non-living. In this case, since my synthetic cell is clay it is not living. But how do I prove that my synthetic cell isn't living using scientific terms? PLS HELP!!!!
Answers
Biologically active components, such as proteins, genes, enzymes, or other cellular structures, are encapsulated in artificial membranes in artificial cells, a class of artificial structures. Artificial membranes can be made from polymers, proteins, lipids, and their conjugates.
In 2010, researchers at JCVI created the first cell with an artificial genome. They started with cells from mycoplasma, a very basic type of bacteria. Cell-like designs utilizing inorganic matter that independently ingest, cycle producing a fundamental capability of living cells.
Learn more about artificial cells, here:
https://brainly.com/question/29708093
#SPJ1
The host says that osteoblasts and osteoclasts are like “frenemies “ working closely and communicating with each other to achieve opposite actions. Where else in the human body have you seen this type of relationship
Answers
Osteoclasts are responsible for aged bone resorption and osteoblasts are responsible for new bone formation.
What are the functions of osteoclasts?Osteoclasts are the cells that degrade bone to initiate normal bone remodeling and mediate bone loss in pathologic conditions by increasing their resorptive activity.
The primary role of osteoblasts is to lay down new bone during skeletal development and remodelling. Throughout this process osteoblasts directly interact with other cell types within bone, including osteocytes and haematopoietic stem cells.
The area of the osteoclast next to bone forms a “ruffled border” consisting of multiple infoldings of the osteoclast cell membrane. It secretes acid and proteases across the ruffled border.
Learn more about osteoclasts:
https://brainly.com/question/30019200
#SPJ2
Osmolarities of the filtrate Please label the nephron with the correct osmolarities of the filtrate at that particular point: Bowman's Initial capsule filtrate Proximal tubule Distal tubule Osmolarity 100 interstitial fluid (mOsm/l) 1200 300 Blood Thick 300 segment of Collecting ascending duct llimb 2o0t 400 400 Cortex Descending limb Loop 600 of Henle 4001 600 600 Outer medulla 900 700 3 900 Thin segment of ascending limb Inner medulla 200 To renal pelvis
Answers
Please find below the labeled nephron with the correct osmolarities of the filtrate at each point:
Bowman's Initial capsule filtrate: 100 (mOsm/l)
Proximal tubule: 300
Descending limb of Loop of Henle: 600
Thin segment of ascending limb of Loop of Henle: 200
Thick ascending limb of Loop of Henle: 400
Distal tubule: 100
Collecting duct in Cortex: 300
Collecting duct in Outer Medulla: 700
Collecting duct in Inner Medulla: 900
To renal pelvis: 200
To learn more about Medulla, Click here: brainly.com/question/14890528
#SPJ11
Make a food web for the rainforest
Answers
Answer:
VEGETERIANS, VEGANS, CARNIVORES, CANNIBALS, Omnivores
Explanation: EVERYWHERE!!
Cellulose is a type of
Answers
Answer:
Cellulose is a carbohydrate
Question 21 of 25
Which of the following is a correct name for a side of the given angle?
D
E
Ο Α. ΕΟ
Ο Ο Ο
B. Point E
C. DE
D. Point D
Answers
Answer:
C
Explanation:
Which of the following biomolecules is responsible for genetic information? *
A. Carbohydrates
B. Lipids
C. Nucleic Acids/Nucleotides
D. Proteins
Answers
Answer:
C
Explanation:
Hi, the answer is C, because nucleotides and acids form DNA and RNA, which store genetic information. Hope this helps!
Answer:
C. Nucleic Acids/Nucleotides
Explanation:
Among biomolecules, nucleic acids, namely DNA and RNA, have the unique function of storing an organism's genetic code—the sequence of nucleotides that determines the amino acid sequence of proteins, which are of critical importance to life on Earth.
A cold and warm air mass meet but neither has the force to push the other one?
A. Stationary Front
B. Warm Front
C. Cold Front
D. Occluded Front
Answers
Answer:
stationary front
Explanation:
When a warm air mass and a cold air mass meet, but they push at each other and neither one can move, it is called a/an Stationary front
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type
of limiting factor causes this?
O density dependent
O density independent
O population dependent
O population independent
Answers
Answer:
Density independent is the correct answer
The type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.
What are density-independent factors?Density-independent factors are environmental factors that affect populations regardless of their size or density. These factors can include natural disasters such as forest fires, floods, hurricanes, droughts, and other extreme weather events. Other examples of density-independent factors include habitat destruction, pollution, and climate change. In the scenario described, a forest fire destroyed an area, which can lead to the decline of both tree and bird populations. The fire could kill the trees and destroy their habitats, making it difficult for the surviving trees to grow or reproduce.
Hence, the type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.
Learn more about the density-independent factors here.
https://brainly.com/question/19277012
#SPJ7
Write the systematic position of silkworm.
Answers
Silkworms (Bombyx mori) are larvae or caterpillars of the Bombyx mori moth. In China, silk has been made for at least 5000 years. Despite not living in the wild anymore, the moth is essential because it produces silk. The species is entirely dependent on humans. The silkworms are native to northern China and eat mulberry leaves.
Bombyx mori
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Bombycidae
To learn more about silkworms refer to:
https://brainly.com/question/23566581
suppose that the initial frequencies of a deleterious allele are equal in both a small population and a large population. why is it easier for a recessive deleterious allele to be eliminated from a small population than from a large one? only a few copies of a recessive allele are present in a small population, and they are more likely to be lost through genetic drift than the many copies found in a larger population. small populations are more susceptible to diseases than large populations, making it more likely that a disease will kill individuals that carry a particular allele. reproductive rates are lower in small populations than in large populations due to difficulties in finding a mate. recessive alleles are more likely to be lost when reproduction is slow. large populations have had greater success in their ecological niche and are thus more fit than small populations, so individuals with deleterious alleles in large populations are better able to withstand the negative effects of the allele.
Answers
The fate of a deleterious allele depends on a complex interplay of factors, including population size, genetic drift, disease susceptibility, and reproductive rates.
When considering the fate of deleterious alleles in populations, it is important to consider the size of the population in question. If we assume that the initial frequencies of a recessive deleterious allele are equal in both a small and a large population, it is easier for the allele to be eliminated from the small population. This is due to several factors, including genetic drift, susceptibility to disease, and reproductive rates.
In small populations, only a few copies of the deleterious allele are present, making it more likely that they will be lost through genetic drift. Genetic drift occurs when chance events cause the frequency of an allele to change over time, and it is more pronounced in small populations. Additionally, small populations are more susceptible to diseases, making it more likely that individuals carrying the deleterious allele will be killed by a disease. Finally, reproductive rates are lower in small populations, which can make it more difficult for individuals carrying the deleterious allele to find a mate and reproduce.
In contrast, large populations have had greater success in their ecological niche and are generally more fit than small populations. This means that individuals carrying the deleterious allele in a large population may be better able to withstand the negative effects of the allele. However, if the frequency of the allele becomes too high, it may still be subject to selection against it. In summary, the fate of a deleterious allele depends on a complex interplay of factors, including population size, genetic drift, disease susceptibility, and reproductive rates.
To know more about deleterious alleles visit:
https://brainly.com/question/31820807
#SPJ11
in a population of lizards, the average tail length is selected against and the long and short tails are selected for in the population. which form of selection is best represented by this scenario?
Answers
Natural selection ensures that the fittest lizard survive by transferring the gene for survival to their offspring, preventing extinction.
Which of the following scenarios best exemplifies lizards' method of selection?According to an article published published this week in Nature, lizards that can securely cling to bushes are often more likely to withstand hurricanes – an instance of natural processes at action.
Hurricanes and other natural catastrophes can have catastrophic effects on ecosystems and cause widespread fatalities. However, it is unclear whether hurricane deaths are random or if they favor those with particular physical characteristics, such the capacity to withstand gale-force winds.
To know more about exemplifies lizards visit:
https://brainly.com/question/11469646
#SPJ4
Why do many fishermen support efforts to protect and restore mangrove forests? a. Most fishermen are environmentalists. B. Many fish breed in mangrove forests. C. They lay their nets in mangrove forests. D. Mangrove forests provide valuable hardwoods. Please select the best answer from the choices provided A B C D.
Answers
Mangroves are the forest ecosystem that are wetlands of the intertidal zones. Fisherman supports the protection of the mangroves because many fishes breed their.
What is the importance of mangrove forests?Mangrove forests are important as they include a very strong ecosystem in them and are huge habitat for the fishes and other aquatic organisms. Mangroves are the breeding habitat for a variety of fishes and contain some beneficiary fishes for the fishermen.
The environment of the mangroves is beneficial for aquatic animals like fishes, oysters, crabs and many others that are important seafood and catch for the fishermen.
Therefore, option B. fishes breed in mangrove forests is the reason that the fishermen support the protection of the mangrove forests.
Learn more about mangroves here:
https://brainly.com/question/1843283
Using these facts, describe the universe in 30 or less words
Answers
Answer:
Astronomers can use telescopes to look at very distant galaxies. This is how they see what the Universe looked like a long time ago. This is because the light from distant parts of the Universe takes a very long time to reach us. From these observations, it seems the physical laws and constants of the Universe have not changed.
Physicists are currently unsure if anything existed before the Big Bang. They are also unsure whether the size of the Universe is infinite.
A microorganism measures 5 μm in length. its length in mm would be:_______
Answers
An micro organism's length in millimeters would be 0.005mm if it were 5 Î14m long.
How wide and long are they?
When comparing two items, width is used to measure the width between the sides of the objects, whereas length measures the total length between the ends of the objects. An object's height is measured from top to bottom.
What factors affect the length?
One can measure length in a variety of quantities, such as centimeters, inches, meters, and so on, in addition to using handspan, foot span, and other techniques. The various length measurement units may be categorized into two groups: non-standard units and standard units
To know more about length click here:
brainly.com/question/30100801
#SPJ4
Carbon is able to bond…
A. many elements.
B. only with non-metal elements.
C. only with CHONPS elements and no others.
Answers
Give suitable reason
1. A dog immediately runs Away on seeing is simply kneeling down as it to pick up stone
2. Why is it particularly harmful to hit a person on the back of his head! explain
3. You suddenly bend down if you find an object (example stone) being hurled towards you .
Answers
Answer:
Suitable reasons
Explanation:
1. The dog is embarrassed it could not pick up the stone.
2. If u hit a person in the back of the head and the same person bends down and does his shoe lace, you will hit his wife in the nose and cause a scuffle---so dont do that.
3. You suddenly bend down when an object is hurled towards you because u want to get hit by it while bending-----Ahahahaha that's jokes.
which of the following organisms would be most likely to be preserved in the geologic record?
Answers
Answer:
Organisms with hard parts, such as shells, bones, or teeth, are most likely to be preserved in the geologic record. This is because hard parts are more resistant to decay and erosion than soft tissues.
Explanation:
which of the following best explains why food chains are sometimes short?
Answers
Answer: It really depends on how much biodiversity you have going on in the ecosystem. Less biodiversity, the shorter the food chain.
Explanation:
Of the following, which is NOT considered to increase the risk of developing cancer for humans?Select one:a.ultraviolet lightb.toxic chemicalsc.regular exercised.smoking
Answers
Answer is C.
Explanation: Exercise is good for the body. It helps regu
Which of the following images shows Facilitated Diffusion? *
Answers
Answer:
Image 2 is facilitated diffusion.
What is the answer ?
Answers
Answer:C
Explanation:
Answer:
the answer is c.
Explanation:
took the test
In man, two abnormal conditions, cataracts (C) in the eyes and excessive fragility (F) in the bones, seem to depend on separate dominant genes located on different chromosomes. Normal vision and normal bones are recessive traits. A man with cataracts and normal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones. Her father had normal bones.
Answers
Complete question:
In man, two abnormal conditions, cataracts (C) in the eyes and excessive fragility (F) in the bones, seem to depend on separate dominant genes located on different chromosomes. Normal vision and normal bones are recessive traits. A man with cataracts and normal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones. Her father had normal bones.
1. What is the genotype of the man with cataracts and normal bones?
2. What is the genotype of the woman with normal vision and fragile bones?
3. What type of offspring might this couple expect?
Answer:
Cc ffcc Ff F1) 4/16 = 1/2 = 25% CcFf, cataracts and fragile bones4/16 = 1/2 = 25% Ccff, cataracts and normal bones
4/16 = 1/2 = 25% ccFf, normal eyes and fragile bones
4/16 = 1/2 = 25% ccff normal eyes, normal bones
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Which homeostatic process moves particles against a concentration gradient?
dynamic equilibrium
passive transport
osmosis
active transport
Answers
Answer:
Yes, the correct answers is D: active transport
Explanation:
got it right in edg 2020
hope this is of help :)
Answer:
D it’s the answer
Explanation:
What are the three types of isolating mechanism that favor reproductive isolation and speciation?
Answers
Organic phosphate is taken up by producers during photosynthesis and released by cellular respiration.
True or false ?
Answers
Answer:
true
Explanation:
pa brainliest po please
#carryonlearning
Question 14 (2 points) The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called natural selection. O mutation. genetic drift. migration.
Answers
The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.
Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.
Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
To learn more about DNA sequence here
https://brainly.com/question/31650148
#SPJ11
Would you rather burn to death or freeze to death? Hmm...
A. approach-approach conflict
B. avoidance-avoidance conflict
C. approach-avoidance conflict
D. double approach-avoidance conflict
Answers
Answer:
c
Explanation:
can anyone please answer this question for me its almost the end of the day
