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Which are four requirements for natural selection to occur ?
Select all the apply
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Related Questions
The _______ of a sensory receptor may be irregular in shape and overlap with those of neighboring receptors. The size of this area determines the sensitivity to a stimulus.
Answers
Answer:
The receptive field
Explanation:
Quizlet
What are two ways humans impact the nitrogen cycle.
Answers
Answer:
burning up fossil fuels and making fertilizers
List three ways RNA is different from DNA?
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Answer:
RNA contains the sugar ribose
DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom
RNA has the nucleolus uracil while DNA contains thymine.
Explanation:
Question 26:
Answer each of the following questions clearly and concisely.
1. Compare and discuss how cells store energy and release energy using ATP. Be specific!
2. Compare lactic acid fermentation and alcoholic fermentation by describing what pyruvic acid is changed into. Be sure to include what type of organism each one takes place in.
What is pyruvic acid changed into? Organism:
Alcoholic Fermentation
Lactic Acid Fermentation
3. Name the three processes of aerobic cellular respiration. What is the total ATP produced from one glucose?
3 Processes of Cellular Respiration:
4. Name the two stages of photosynthesis and list the starting molecule(s) and ending molecule(s) of each.
Stages Starting Molecule(s) Product(s)
5. What is the general chemical equation of photosynthesis?
6. When and why does our body use lactic acid fermentation?
7. Explain how the equations for photosynthesis and cellular respiration compare.
Question 27:
Critical Reading
Read these passages from the text and answer the questions that follow.
Fermentation
An important way of making ATP without oxygen is called fermentation. It involves glycolysis but not the other two stages of aerobic respiration. Many bacteria and yeasts carry out fermentation. People use these organisms to make yogurt, bread, wine, and biofuels. Human muscle cells also use fermentation. This occurs when muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration. There are two types of fermentation: lactic acid fermentation and alcoholic fermentation. Both types are described below.
Lactic Acid Fermentation
In lactic acid fermentation, pyruvic acid from glycolysis changes to lactic acid. In the process, NAD+ forms from NADH. NAD+, in turn, lets glycolysis continue. This results in additional molecules of ATP. This type of fermentation is carried out by the bacteria in yogurt. It is also used by your muscle cells when you work them hard and fast.
Did you ever run a race and notice that your muscles feel tired and sore afterward? This is because your muscle cells use lactic acid fermentation for energy. This causes lactic acid to build up in the muscles. It is the buildup of lactic acid that makes the muscles feel tired and sore.
Alcoholic Fermentation
In alcoholic fermentation, pyruvic acid changes to alcohol and carbon dioxide. NAD+ also forms from NADH, allowing glycolysis to continue making ATP. This type of fermentation is carried out by yeasts and some bacteria. It is used to make bread, wine, and biofuels.
Alcoholic fermentation produces ethanol and NAD+. The NAD+ allows glycolysis to continue making ATP.
Have your parents ever put corn in the gas tank of their car? They did if they used gas-containing ethanol. Ethanol is produced by the alcoholic fermentation of glucose in corn or other plants. This type of fermentation also explains why bread dough rises. Yeasts in bread dough use alcoholic fermentation and produce carbon dioxide gas. The gas forms bubbles in the dough, which causes the dough to expand. The bubbles also leave small holes in the bread after it bakes, making the bread light and fluffy.
Questions
1. What is fermentation?
2. Why is NAD+ so important in fermentation?
3. Both lactic acid fermentation and alcoholic fermentation begin with the same molecule. What is that molecule and where did it come from?
4. Why is bread light and fluffy?
5. Why do your muscles get sore after intense activity?
Answers
(2) Alcoholic fermentation takes place in yeast and results in the production of ethyl alchol from pyruvate.
Lactic acid fermentation takes place in animals and results in the production of lactic acid from pyruvate.
Neither of these processes will be slowed or stopped if there is no oxygen present.
(3) Glycolysis= 2 ATP
Krebs Cycle= 2 ATP
Electron Transport Chain= 32 ATP
Total ATP= 36 ATP
glycolysis, Krebs cycle, and electron transport chain
(4) Stage 1 is referred to as the light-dependent reaction stage.
6H2O and sunlight are the starting molecules.
ATP and NADPH are the last molecules (Nicotinamide adenine dinucleotide phosphate)
Cycle of Calvin.
6CO2 with ADP (Adenosine diphosphate)
(5) In this case, when 6 atoms of Carbon and 12 atoms of water are mixed together, the plant gets glucose, 6 atoms of water, and 6 atoms of oxygen out of it.
(6) Why? In the absence of Lactic acid fermentation, our bodies would be unable to perform many activities, including allowing our muscles to continue creating ATP from glucose when oxygen levels are low or during severe activity, as well as allowing bacteria to carry out its functions in our bodies.
When? When our cells want energy, they break down basic chemicals such as glycolysis in order to produce it.
(7) Photosynthesis is the process through which carbon dioxide and water are converted into glucose and oxygen. During the process of respiration, glucose and oxygen are exchanged for carbon dioxide and water. glucose (C6H12O6) combined with oxygen (O2) yields CO2 (Carbon Dioxide) with water (H2O) and ATP energy.
(1) During the fermentation process, an organism turns a carbohydrate into either alcohol or acid, which is carried out in the absence of oxygen.
(2) Because glycolysis is dependent on it, glycolysis also recycles it in order to allow it to enter glycolysis.
(3) Glycolysis and pyruvate
(4) When yeast rises, air bubbles are created.
(5) Lactic acid builds up in muscles after strenuous exercise, making them sore.
In embryonic stage humans, birds and fish are similar in many aspects
why
help me answer this fast
Answers
Answer:
The developing of the humans, fish and other kind of embryos share the features like tails and gill like features. The human embryos resemble that of other species because these are related with the evolutionary relationship belonging to the same ancestor.
Explanation:
I hope this helps!What is the name of the enzyme that is responsible for building a mrna strand that is complementary to a dna template strand?.
Answers
You wait for game while sitting or standing in one spot. This hunting strategy is called:
still hunting
stalking
posting
trailing
PLEASE HURRY I NEED THE ANSWER NOWWW!!!!!!
Answers
Answer:
posting
Explanation:
The hunting strategy where you wait for the game while sitting or standing in one spot is called "posting." The correct option is "posting".
What is Posting?
It is a hunting strategy where a hunter positions themselves in a specific location, often a concealed or strategic spot, and waits for the game to come within range.
The hunter remains stationary and observes their surroundings for signs of wildlife activity.
This strategy is commonly employed in hunting scenarios where the hunter has knowledge of animal movement patterns, feeding areas, or travel routes.
By remaining still and patient, hunters aim to blend into the environment and minimize disturbances that may alert or scare away the game. The chosen location for posting is often selected based on factors such as visibility, cover, wind direction, and proximity to areas frequented by the target species.
Thus, the correct option is "posting".
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What inference can be made from the scientific discovery that life processes are shared by all organisms?
Innate behavior is programmed into the genetic code.
Natural selection is no longer the driving force of evolution.
Organisms alive today will not exist in thousands of years.
Species are linked by lines of descent or close relatives.
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Answer:
species are linked by lines of descent or close relatives.
Many years ago, a scientist grew pea plants that produced wrinkled peas. The peas from these plants produced new plants that also produced wrinkled peas. The scientist concluded that something in the parent plants was being transmitted to the next generation. This discovery is now known as.
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Have a great day!
Some members of the Euglenids are photosynthetic, yet they will lose their photosynthetic pigment if left in the dark. True or False: After storing Euglenids in the dark, the loss of the photosynthetic pigment is permanent.
Answers
A) Some members of the Euglenoids lose their photosynthetic pigment when left in Dark : TRUE
B )The loss of photosynthetic pigment in Euglenids stored in the dark is permanent : False
What are EuglenasEuglenas are unicellular organisms belonging to the kingdom Protista, when kept in the dark for too long Euglenoids begin to lose their chlorophyll. As it loses its chlorophyll it becomes unable to produce its own food and starts consuming bacterias within its habitat.
The loss of chlorophyll in Euglenids can be regained after it is been exposed to sunlight and allowed to grow exponentially for several weeks.
Hence we can conclude that Some members of the Euglenoids lose their photosynthetic pigment when left in Dark : TRUE while The loss of photosynthetic pigment in Euglenids stored in the dark is permanent : False
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50 POINTS AND BRAINLIEST IF YOU GIVE CORRECT ANSWER.
A Colorblind male and a female that is h o m o z y g o u s for the normal allele have offspring. what percent of males would have normal vision, what percent of males would have c o l o r b l i n d n e s s, what percent of females would have normal vision, and what percent of females would have colorblindness?
Answers
Answer:
none of the males or females could be colorblind, assuming that this question is referring to x-linked recessive inheritance patterns.
Explanation:
if it is an x linked recessive trait, then the male's genotype is [tex]x^{b} y[/tex], with (b) representing colorblindness and (B) representing normal vision. the female, who is h o m o z y g ou s for normal vision, would have the genotype [tex]x^{B} x^{B}[/tex].
It would be impossible for the dad to pass on his colorblind gene to a son, because he can only pass a Y chromosome to the son. and a daughter would get the colorblind gene, but the normal gene donated by the mom would dominate it so the daughter could not actually be colorblind
Answer:
none of the males or females could be colorblind, assuming that this question is referring to x-linked recessive inheritance patterns.
Explanation:
if it is an x linked recessive trait, then the male's genotype is , with (b) representing colorblindness and (B) representing normal vision. the female, who is h o m o z y g ou s for normal vision, would have the genotype .
It would be impossible for the dad to pass on his colorblind gene to a son, because he can only pass a Y chromosome to the son. and a daughter would get the colorblind gene, but the normal gene donated by the mom would dominate it so the daughter could not actually be colorblind
Choose all the answers that apply.
Which of the following conditions are necessary for fossilization?
presence of minerals
warm temperature
exposure to oxygen
stable geological conditions
rapid burial
Answers
Answer:
warm temperature
Explanation:
it helps fossilzation
A characteristic that distinguishes meiosis from mitosis is.
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Answer:
Most cells divide by mitosis and create two identical daughter cells. In meiosis, four non-identical daughter cells are created.
Explanation:
What term describes the continuation of a visual sensation.
Answers
Answer:
Afterimage.
Explanation:
An afterimage describes the continuation of a visual sensation after removal of the stimulus. For example, when you stare briefly at the sun and then look away from it, you may still perceive a spot of light although the stimulus (the sun) has been removed.
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Which osseous tissue is found on the surface of bones and composed of tightly arranged parallel osteons?.
Answers
Read the short excerpt below and answer the questions after. You will be doing math so please show your work.
During the hottest months of summer, ewes (females) and lambs come to waterholes almost daily. The male sheep (rams) sometimes do not come to water for nearly a week at a time. Rams may roam 20 miles (32 kilometers) away from the available water supply. Add 20 miles (32 kilometers) to the approximately 5 miles (8 kilometers) traveled per day, and rams may travel almost 75 miles (120 kilometers) before they drink again. Rams are believed to drink approximately 4 gallons (15.2 liters) of water when they do come to water, while a ewe drinks approximately 1 gallon (3.8 liters) and a lamb drinks 2 pints (940 milliliters).
Questions:
1. How many miles to the gallon or kilometers per liter (of water) does a ram get?
2. How many gallons (or liters) of water would a ram drink in a month?
3. How many gallons (or liters) of water would a ewe drink in a month?
4. How many gallons (or liters) of water would a lamb drink in a month?
5. How much water must be available in a waterhole for 10 rams, 16 ewes, and 7 lambs in order for them to survive the months of June, July, and August?
6. What rate of inflow would a waterfall have to have to sustain the population given above if water evaporated at a rate of 10 gallons (38 liters) per day?
Answers
Answer:
1) 20 miles
2) 4gallons (15.2 liters)
3) 1 gallons (3.8 liters
4) 2pints or 940 milliliters
5) 658.14 liters
Explanation:
Industries and car manufacturers are constantly working to lower their emissions. Factories use
something called a scrubber to help lower emissions. What do car manufacturers add to cars to help
lower emissions? (4b)
O oil drip pan
O scrubber
O catalytic converter
O pistons
Answers
Answer:
c catalytic converter
Explanation:
i just took the test
Which form of transport requires the expenditure of energy?.
Answers
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Suppose you discovered a new multicellular organism that is shaped like a cube. The organism measures 3 cells tall, 3 cells wide, and 3 cells deep. You measure one cubed cell to be 2 arbitrary units per side. Can you calculate this organism’s surface area to volume ratio?.
Answers
The organism’s surface area to volume ratio is
Ratio = 3:1
Surface area to volume ratioWith the organism features of
having a multicellular
having 3 cubical cell
each of them is having 2 a.u
total value is
T2+2+2= 6 a.u.
Therefore,
V=6x6x6
V= 216
The surface area would be
216x3= 648
Surface area to volume ratio
Ratio=648/216
Ratio = 3
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The data table and the cladogram below provide information about the evolutionary history of several different species of animal. Using this information, which of the following is true of trout? Claws/Nails Feathers Jaws Lungs Mammary glands Bird X X X X Hagfish Lizard X X X Rabbit X X X X Salamander X X Tiger X X X X Trout X Image depicts a cladogram with hagfish, trout, salamander, lizard, bird, rabbit, and tiger represented. Trout diverge from hagfish with the introduction of jaws. Salamander diverges from trout with the introduction of lungs. Lizard diverges from salamander with the introduction of claws and nails. Bird diverges from lizard with the introduction of feathers. Rabbit and tiger diverge from lizard with the introduction of mammary glands. They are more closely related to salamanders than they are to birds. They are more evolved than salamanders and lizards. They evolved into a separate species due to the presence of lungs. They have jaws and lungs but lack claws or nails, feathers, and mammary glands.
Answers
Answer:
They are more closely related to tigers than they are to birds.
Explanation:
I just took the test.
The conclusion that can be drawn about trout from the diagram is :They are more closely related to salamanders than they are to birds. Birds claws, feathers, jaws and lungs. Trout has jaws only. Hence, they are entirely different from birds/
What are trouts ?Trout is kind of food fishes belonging to the family Salmonidae (order Salmoniformes) that are mostly restricted to freshwater, but certain species do migrate to the sea between spawning.
Trout typically inhabit chilly freshwater, frequently in riffles and deep pools, or amid submerged items. Like any other fishes, trout have jaws and they does not have lungs, claws or feathers. They respire through gills.
Higher animals like, rabbits, tigers, birds etc. consists of lungs and rabbits and tigers have Mamery glands. Salamanders does not have feathers or claws or like birds but has jaws and lungs. Hence, trouts are more alike to salamanders than birds.
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The image related to your question is given below:
What fat measurement corresponds to low-fat ice cream?.
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Why should the number of each kind of atom be equal on
both sides of a chemical reaction?
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Answer:
The law of conservation of mass governs all chemical equations, stating that matter cannot be created or destroyed. As a result, each element must have the same number of atoms on both sides of a chemical equation.
Which are examples of source and sink cells in a plant?.
Answers
Source is tissue, leaves and stem whereas sink are tubers and seeds.
Source and sink cells in a plant.In a plant cell, photosynthetic tissues, green leaves and green stems are the source where food is produce while on the other hand, germinating seeds, tubers are the sink where the food are stored so we can conclude that source is tissue, leaves and stem whereas sink are tubers and seeds.
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Dynamic equilibrium is detected by receptor regions called . 2. Static equilibrium receptors are located in the vestibular apparatus branch called . 3. Static equilibrium is detected by receptors within membranous sacs called maculae. 4. Dynamic equilibrium receptors are located in the vestibular apparatus branch called . 5. The bending of dynamic equilibrium receptors is caused by the gelatinous cap called the . 6. The bending of static equilibrium receptors is caused by tiny stones called
Answers
Receptors placed in the different areas of the vestibular apparatus detect the types of equilibriums. 1) crista ampullaris, 2) utricle and saccule, 3) maculae, 4) semicircular canals, 5) cupula, 6) otoliths.
How is the vestibular apparatus composed?Three main areas compose the vestibular apparatus. These are the
utricle, saccule, and semicircular canals. What are the different types of equilibriums?The vestibular apparatus detects two types of equilibriums,
• The static equilibrium → Head and body position relative to gravity
• The dynamic equilibrium → Head and body position relative to rotational acceleration and deceleration.
These types of equilibriums are detected by receptors placed in different areas of the vestibular apparatus.
• Static equilibrium receptors are located in the macula of the utricle and saccule. They help to maintain balance.
• Dynamic equilibrium receptors are located in the semicircular canals. They provide information about the rotational movement.
The sensory hairs are located in the crista of the ampulla, at the base of each canal (crista ampullaris).
The sensory hairs are covered by a dense gelatinous material named cupula, the otolithic membrane.
The otoliths are calcium carbonate crystals placed over the cupula. Their movements depend on the head’s movements.
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Newborn babies and hibernating animals contain a large amount of brown adipose (fat) tissue (BAT). Certain proteins in the BAT cells increase the permeability of the inner mitochondrial membrane to protons, disrupting the proton gradient. Which of the following best predicts the effect of disrupting the proton gradient in BAT?
А. The pH of the matrix will increase, allowing the production of more ATP per gram of substrate.
B. The pH of the intermembrane space will decrease, allowing a steeper proton gradient to form.
С. Electron transport and oxidative phosphorylation will be decoupled, generating more heat but less ATP.
D The number of protons available to pass through ATP synthase will increase, resulting in more ATP.
Answers
The statement 'the pH of the matrix will increase, allowing the production of more ATP per gram of substrate' best predicts the effect of disrupting the proton gradient in BAT. It is a step of cellular respiration.
Cellular respiration and proton gradientCellular respiration refers to the chemical reactions where aerobic cells can produce ATP by using the energy from foods and oxygen.
Cellular respiration has three stages: glycolysis, the Krebs cycle, and oxidative phosphorylation.
During oxidative phosphorylation, the movement of electrons is coupled to a proton gradient across the inner mitochondrial membrane to generate ATP.
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How does drug resistance among insects and bacteria offer evidence for evolution?
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The spreading out of molecules from a center of higher concentration is the result of.
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We have that the spreading out of molecules from a center of higher concentration is the result of Diffusion
Diffusion
DiffusionGenerally, Diffusion is the movement of mainly gaseous bodies from an area where it is at higher concentration to an area where it is at lower concentration.
Therefore, The spreading out of molecules from a center of higher concentration is the result of Diffusion as seen in the definition
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An air mass formed in Northern Canada moves into United States what type of air mass is this most likely to be in and what affect will have on the weather in the US
Answers
Answer : Radiational Cooling
Explanation: Continental polar (cP) or continental arctic (cA) air masses are cold, dry, and stable. These air masses originate over northern Canada and Alaska. They move southward, east of Rockies into the Plains, then eastward.
What would it look like if human eye colors showed codominance? Incomplete dominance? Describe both.
Answers
Answer:
Codominance means that neither allele can mask the expression of the other allele, in humans the eye colors of both alleles would be mixed. Like a brown-black. Incomplete dominance is if a parent had blue eyes and the child has brown eyes.
Explanation:
Pepsin acts on proteins in the stomach. Explain how its optimum pH is suited to its working environment