Answers
Urine in adults travels through the urethra, but in fetuses, urine travels from the bladder through the allantoic duct and then to the allantois, a special sac. Allantois is a nitrogenous waste-specific sac that allows fetal urine to bypass the urethra.
What is the urinary system about?The kidneys, ureters, bladder, and urethra comprise the urinary system, also known as the urinary tract or renal system. The urinary system's purpose is to eliminate waste from the body, regulate blood volume and pressure, control electrolyte and metabolite levels, and maintain blood pH.
The allantoic is a sac formed from the posterior region of the alimentary canal in vertebrates. In amphibians, it serves as a urinary bladder, in embryonic reptiles and birds, it receives metabolic wastes, and in Eutheria, it forms part of the placenta.
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Related Questions
Why are mutations a source
of heritable variation?
A. Mutations are always neutral and
therefore don't contribute to
variations.
B. It creates changes in the DNA of an
individual that can be passed on. This is the answer
C. They cause a gamete to die due to a
change in DNA.
D. They cause changes to occur in the
environment around a species.
Answers
Answer:
B
Explanation:
Why are mutations a source of heritable variation? Mutations are changes in the DNA. A single mutation can have a large effect but in many cases evolutionary change is based on the accumulation of many mutations.
what kind of effect can a chromosonal change have on an organism?
Answers
Answer:
Changes that affect the structure of chromosomes can cause problems with growth, development, and function of the body's systems. These changes can affect many genes along the chromosome and disrupt the proteins made from those genes.
all of the following are examples of natural selection except multiple choice the distribution of dark and light colored peppered moths in britain. a rise in bacterial resistance to antibiotics. the reduction in beak length of scarlet honeycreepers when they changed food sources. the 150 breeds of dogs developed from ancestral wolves. two of these are not examples of natural selection.
Answers
Developing 150 breeds of dogs from ancestral wolves is not an example of natural selection.
The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways. This variety indicates that some people have characteristics that are more environment-appropriate than others. People that possess advantageous qualities, or adapted traits, are more likely to live and procreate. The adaptable qualities are subsequently passed on to the next generation by these people. These beneficial characteristics spread across the population over time. Favorable features are passed down across generations as a result of natural selection. Natural selection may result in speciation, the process by which one species gives rise to another that is utterly separate.
Hence, survival of the fittest species take among population.
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Most of the energy released in citric acid cycle reactions is conserved in ________.
Answers
Answer:
NADH
Explanation:
6. There is a couple named Louise and Robert.
They want to have exactly four children. Use
the multiplication and addition rules to
calculate the probability that Louise and
Robert will have two girls and two boys in any
order. (Hint: set up a table to help you
determine all the different combinations
possible.)
Answers
ans is even chance means 50/50
Explanation:
they have 50/50 chance
The required probability is 0.0625 or 6.25% that Louise and Robert will have two girls and two boys in any order.
What is probability?Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
The probability of having a girl or a boy is 0.5 (assuming the chance of having either is equal).
To determine the probability of having two girls and two boys in any order, we can use the multiplication rule of probability.
In this case, we can break the problem down into 4 independent events:
The probability of the first child being a girl
The probability of the second child being a girl
The probability of the third child being a boy
The probability of the fourth child being a boy
Each event has a probability of 0.5, so we can multiply these probabilities together to find the overall probability:
(0.5) × (0.5) × (0.5) × (0.5) = 0.0625
So the probability that Louise and Robert will have two girls and two boys in any order is 0.0625 or 6.25%.
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Enations are small, flattened green protuberances found on the stems of
A. club mosses.
B. horsetails.
C. quillworts.
D. true mosses.
E. whisk ferns.
Answers
Enations are small flattened green protuberances found on the stems of whisk ferns. Option E.
Wisk ferns have water and nutrient-carrying tissue but no true leaves or roots. Small yellow sporangia can be seen on the branches. Snowden has no strobila. These primitive plants are closely related to ferns. Horsetails whisk ferns and ferns belong to the phylum Monilophyta while horsetails are classified in the equinox.
The only extant genus Equisetum is a survivor of a large group of plants that produced large trees shrubs and vines in Carboniferous swamp forests. Seedless vascular plants belong to tubular plants. They have vascular tissue such as the xylem and phloem but do not produce reproductive seeds or flowers. Examples of seedless vascular plants are ferns clubmoss whisk ferns and horsetail.
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A frog cell normally has 26 chromosomes. How many chromosomes will each daughter cell have after mitosis?
13
26
46
52
Answers
Answer:
26 chromosomes.
Explanation:
Mitosis is basically cell division. Each of the resulting daughter cells would have the same number of chromosomes at the end as the original one.
Answer:
26
Explanation:
In mitosis the daughter cell will have the same number of chromosomes as the parent cell, which is usually the diploid number. mitosis occurs for all other body cells. in this case the parent has 26 so the 2 daughter cells also have 26 chromosomes each.
in meiosis the daughter cells will have the haploid number or half the number of chromosomes than the parent cell. that means since the parent has 26 chromosomes, the 4 daughter cells will have 13 chromosomes each. meiosis occurs only for sex cells/gametes
The transport of glucose into some cells requires the presence of an electrochemical gradient of Na + ions. In this circumstance, glucose molecules are carried into the cell by___O facilitated diffusion by an antiporter O facilitated diffusion by a symporter O secondary active transport by an antiporter O secondary active transport by a symporter O ATP hydrolysis by the Na + /K + pump
Answers
A symporter transports one glucose and two sodium ions from the cavity of the small intestine into the absorptive cells of the villi.
What is antiport secondary active transport?In secondary active transport, the electrochemical potential difference is created by pumping ions in or out of the cell. There is no coupling of ATP. The downhill movement of one solute from high to low concentration to move another molecule along with it is called symport. Symport is one of the form of secondary active transport. The example of symport is the co-transports one glucose molecule into the cell for every two sodium ions it imports into the cell. This symporter is located in the small intestine epithelial cells, trachea, heart, brain, testis.Glucose is a monosaccharide, one of the digestion products of carbohydrates. Glucose is a polar molecule and can not diffuse through the hydrophobic core of the cell membrane of absorptive cells of the small intestine.Since both Na+ and glucose are transported in the same direction, it is a symport. Here, the energy of the ionic concentration gradient of Na+ serves as a source of energy for glucose transport, the process of glucose transport is secondary active transport.To learn more about ATP hydrolysis refer to:
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when neuron activity increases in a certain region of the brain, this also increases everything except chapter 14
Answers
When neuronal activity increases in certain brain regions, it also increases everything except Co2 elimination. Oxygen consumption, blood flow, glucose consumption also increased.
Blood is a fluid in the body that functions to deliver hormones, nutrients and oxygen throughout the human body. In addition, blood is also responsible for removing toxins in the body. The poison will later be given to other organs whose job is to filter it.
Blood contains not only hormones, oxygen, nutrients and impurities in the body. Blood becomes the morning seat of plasma, cells and proteins. This is what makes blood have a thicker texture than water.
When viewed more deeply, blood cannot be interpreted only as a liquid that helps the nose run. However, it is also a means of channeling various things in the human body. In addition, blood is actually not completely liquid. Blood consists of solids and fluids.
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The inheritance pattern for an autosomal dominant trait is shown in the pedigree. Shaded symbols represent individuals that express the dominant trait. (If the individual is not shaded, they carry the homozygous recessive trait of "aa".)
Answers
Based on this pedigree, the most likely genotypes of individuals I-1 and I-2 will be C. I-1: Aa I-2: aa.
What are genotypes?The type of variant present at a specific locus (i.e., location) in the genome is scored by what is known as a genotype. Symbols may be used to represent it.
An organism's genotype is made up of all of its genetic components.
The alleles or variations that an individual carries in a specific gene or genetic location are also referred to as the genotype. Based on the information, it should be noted that the correct option is C.
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The inheritance pattern for an autosomal dominant trait is shown in the pedigree. Shaded symbols represent individuals that express the dominant trait. Based on this pedigree, what are the most likely genotypes of individuals I-1 and I-2? I-1: aa I-2: Aa I-1: AA I-2: Aa I-1: Aa I-2: aa I-1: aa I-2: AA
DNA sequence of the gene encoding the flagellum protein in three different organisms was found to be (in part):ATG-GGC-GTA-GCT-TACATG-GGA-GTA-GCT-TACATG-GGT-GTA-GCT-TACThis represents a ______.O single nucleotide polymorphismfO rameshift mutationO deletion mutationO DNA sequencing errorAnswer: single nucleotide polymorphism
Answers
The given DNA encoding represents single nucleotide polymorphism.
What is polymorphism ?One of the fundamental ideas of object-oriented programming (OOP), polymorphism addresses circumstances where something happens in a variety of ways. It refers to the idea in computer science that you can access objects of many types through the same interface.
A single nucleotide (adenine, thymine, cytosine, or guanine) change in the genome's sequence that affects at least 1% of the population is referred to as a DNA sequence variation.
Single Nucleotide Polymorphism are most frequently discovered in the DNA between genes. They can serve as biological markers, guiding researchers to genes linked to disease.
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A researcher compares the species diversity of two different islands located equal distances from the mainland. One island is much smaller than the other. She finds that the S value for the smaller island is _____ the S value for the larger island. When she examines the extinction rates for both islands, she finds that the extinction rate on the small island is _____ the extinction rate for the large island.
Answers
The island is significantly more accessible from the mainland. She concludes that the island located closer to the mainland has a greater S value than the island farther away from the mainland.
A researcher is evaluating the species richness of two islands. The size of the two islands is about the same. One island, nevertheless, is far closer to the mainland. She concludes that the island located closer to the mainland has a greater S value than the island farther away from the mainland. She also discovers that the extinction rate on the nearer island is the same as the extinction rate on the farther island. Because it is more likely that colonizing organisms would reach nearby islands than far-off ones, the latter have higher colonisation rates. Because there are fewer species to go extinct, extinction rates are low when the number of species is low.
Hence, extinction rate on the nearer island is the same as the extinction rate on the farther island
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Pond water can contain many types of organisms. Which of the following are you most likely to find in a pond water sample? Please select all that apply.bacteriaalgaerotifersprotozoa
Answers
You are most likely to detect bacteria, algae, rotifers, and protozoa in pond water samples.
Ponds frequently harbor the species Euglena, Paramecium, amoebas, & ciliates. Every drops of pond water has a hidden universe full of a remarkable variety of tiny life. Simple life forms like bacteria, powerful oxygen providers like algae, various protozoans that resemble aliens, and adorable tiny creatures like water bears may all be found. It is beneficial to study the macroscopic morphological characteristics of bacteria, fungus, algae, and protozoa while the specimen is dyed and illuminated. First, use an eye dropper to suck up a little bit of the water from the container. The water should then be cautiously released onto such a microscope slide. Use a sliding glass slide to cover the slide once water has been added to it.
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Territories are typically used for activities such as
A) feeding, mating, and rearing young.
B) migration and feeding.
C) identification of kin and rearing young.
D) feeding and identification of kin.
Answers
Territories are typically used for activities such as : feeding, mating, and rearing young.
A 'territory' is any defended area, and often these birds are territorial (mostly in the context that they safeguard some area, even if it is just a nest spot) for at least part of the year. The upside or advantage of protecting a territory is that the 'owner' has access to an asset or more of a resource (or access to an improved quality resource) than they otherwise would have.
Territories can be classified according to the resource (or resources) being defended:
Type A territory, or mating, nesting, and feeding territory is a zone in which all activities take place (such as courtship, mating, nesting, & foraging). It also known as a "all-purpose territory", the kind of territory that many songbirds defend
Type B, also known as mating and nesting territory. All breeding activities take place here, but most foraging takes place elsewhere. This type of territory is the one that male Red-winged Blackbirds defend
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During his experiments with pea plants, Mendel referred to the trait that was expressed in the F1 or first filial generation as
A. recessive.
B. dominant.
C. codominant.
D. independent.
E. homozygous.
Answers
Answer: dominant
Explanation:Becuae the trait was present in all of the P1 generation
There are instances when enzymatic reactions can be inhibited. This is the process of inhibition caused by build-up of the final product of the reaction catalyzed by that enzyme.
a)competitive inhibition
b)feedback inhibition
c)noncompetitive inhibition
d)allosteric inhibition
Answers
d)allosteric inhibition are instances when enzymatic reactions can be inhibited. This is the process of inhibition caused by build-up of the final product of the reaction catalyzed by that enzyme.
What are the enzymatic reaction inhibitors?Enzyme inhibitors are substances that temporarily or permanently interact with enzymes in some way, reducing the pace of an enzyme-catalyzed process or preventing enzymes from functioning normally. Competitive, noncompetitive, and uncompetitive inhibitors are the three main categories of inhibitors.
An enzyme is rendered inactive by a reversible inhibitor through noncovalent interactions. A reversible inhibitor can separate from the enzyme, in contrast to an irreversible inhibitor. Competitive and noncompetitive inhibitors fall under the category of reversible inhibitors.
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the long length, circular folds, villi, and microvilli of the small intestine offer a large surface area for absorption of ingested materials.
Answers
The intestines' circular folds provide a larger surface area for absorption while also slowing the movement of partially digested food down the intestines.
Villi, which resemble little fingers, cover their surface (singular, villus). Microvilli are found on each villus in turn.The majority of the circular mucous membrane folds in the small intestine extend transversely around the organ's cylinder for around one-half to two-thirds of its circumference. Some of them create full circles. Others move in a spiralling pattern. The latter typically wrap twice, sometimes sporadically three or four times, around the bowel.About 1 cm are the biggest folds. its widest point; nevertheless, the greater majority are smaller. Alternating between the larger and smaller folds.
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The density of most prey species is independent of predation levels and is influenced to a greater extent by competition with other species.
Answers
False, the density of most prey species is independent of predation levels and is influenced to a greater extent by competition with other species.
Predation occurs when one organism kills and consumes another. Predation supplies energy to the organism that kills, the predator, and promotes reproduction at the expense of the organism being consumed, the prey. Predation has an impact on species at two ecological levels.
Predation is a biological relationship in which one creature, the predator, kills and consumes another, the prey. It is one of several common feeding behaviors, including parasitism, micropredation, and parasitoidism.
Relationships between predators and prey include the lion and zebra, the bear and fish, and the fox and rabbit.
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You are observing different tissue samples and classifying the cells into their respective stage in the cell cycle. What can you conclude about Sample B based on these observations?
A) Sample B Is is most likely cancerous because most of the cells are in interphase.
B) Sample B is most likely cancer tissue because most cells are in some stage of mitosis.
C) Sample B is most likely a normal tissue sample because most of the cells are in interphase.
D) Sample B is most likely a normal tissue sample because most cells are in some stage of mitosis.
Answers
Sample B is most likely cancer tissue because most cells are in some stage of mitosis. By observing different tissue samples and classifying the cells into their respective stage in the cell cycle.
What stage of cell division is ideal?Prophase, prometaphase, metaphase, anaphase, and telophase are these stages. Since cytokinesis is the final physical cell division after telophase, it is occasionally regarded as the sixth stage of mitosis.
These cells spend the most of their time in which stage of the cell cycle?A cell spends majority of time in interphase, where it develops, duplicates its chromosomes, and gets ready to divide. The cell then exit interphase and goes through mitosis, and finishes dividing.
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Which is an example
of a behavioral
adaptation in
emperor penguins?
A. controlling their heart rates to slow down to use less
oxygen and go longer without food
B. huddling together in the winter and rotating to keep
warm this is the answer
C. the coloring of their bodies to camouflage in the water
Answers
An example of behavioral adaptation in emperor penguins is huddling together in the winter and rotating to keep warm (option B).
What is behavioral adaptation?Adaptation in biology is the process of change that an organism undergoes to be better suited to its environment.
Adaptation can be any of the following types:
Behavioural adaptation: These are responses made by an organism that help it to survive/reproduce in its environment. Physiological adaptation: This is a body process that helps an organism to survive/reproduce. Structural adaptation: This is a feature of an organism’s body that helps it to survive/reproduceTherefore, the huddling together of emperor penguins in the winter is an example of a behavioral adaptation.
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Can someone give me the answers to 2 5 and 6? PLEASE
Answers
Explanation:
2. 7 levels
5. Photosynthesis let the producers (plants) create their own food.
6. If the producers weren't in the food chain, the herbivores would starve and die, as well as the carnivores. One change in the food chain is deadly and affects the whole chain severely.
Biosocial theorists believe that there is an interaction between biology and social factors in the development of gender identity and gender roles. In the case of David Reimer, Dr. Milton Diamond believed that psychosocial factors were most important, where as Dr. John Money believed biological factors were important.
Answers
The fundamental principle behind DBT's biosocial approach clarifies how symptoms manifest and problems endure, not just in cases of borderline personality disorder but also in a wide spectrum of other psychopathologies.
A disorder is a group of problems that seriously interfere with a person's ability to go about their daily lives and cause them difficulty, distress, impairment, and suffering. Obsessive-Compulsive According to the Oxford English Dictionary's definition of a disorder, which is an ailment that impairs regular physiological or mental function, disorder fulfils the description of a sickness. In more detail, disorders are physical or mental conditions that affect how daily activities and life function normally. They could take up a lot of time and disrupt a person's normal routine. The flexible nature of diseases makes it possible that they are not always visible in every context, and what may have an effect on one individual in a condition may not have as big of an effect on another. The term "disorder" is therefore extremely ambiguous and arbitrary.
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I need the medical code for cirrhosis of the liver with ascites
Answers
Answer: ICD-10 code K70. 31
Explanation: or Alcoholic cirrhosis of liver with ascites is a medical classification as listed by WHO under the range - Diseases of the digestive system .
A. higher Crude Death Rate
C. higher life expectancy
According to the
United Nations, which
of the following is NOT
a characteristic of
DEVELOPED nations?
B. lower Total Fertility Rate
D. lower Crude Birth Rate
Answers
According to the United Nations, the following which is not a characteristic of developed nations include the following below:
Higher life expectancyLower Total Fertility RateLower Crude Birth Rate.What is a Developed nation?This is referred to as a nation which has a high quality of life, developed economy and advanced technological infrastructures when compared to other countries in the word.
Developed countries tend to have a lower fertility rate due to lifestyle choices such as what they eat and also a high prevalence of smoking and other vices.
The low fertility rate results in the lower crude birth rate which is common with such nations.They however have a higher life expectancy due to their excellent medical services and safe environment.
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.What germ layers ‘sandwich’ the body cavity in coelomates?
Answers
Answer:
In coelomates, the body cavity is surrounded by two germ layers: the mesoderm and the endoderm. The mesoderm is the middle germ layer, and it gives rise to the muscles, bones, blood, and other connective tissues. The endoderm is the innermost germ layer, and it gives rise to the lining of the digestive and respiratory systems. Together, these two germ layers form a "sandwich" around the body cavity, with the mesoderm on the outside and the endoderm on the inside.
Explanation:
how are the functions of vacuoles and lysosomes different
Answers
vacuole is to maintain the osmotic or turgor pressure of the cell
Determine the DNA fingerprint for the the victim and three suspects by cutting the DNA with the restriction
enzyme, Not1. Not1 recognizes the following sequence- GGGCCC and cuts at G/C. Which suspect is most likely
guilty of the murder?
A) Provide the fragment sizes for each of the DNA fingerprints: Victim, Suspect 1, Suspect 2, and Suspect 3.
B) Determine which Suspect is guilty of murder.
Answers
Answer: Suspect 1 is the Most Likely Murderer
Explanation:
Refer to photo for question A.
11. What would happen if a mutation occurred but it still coded for the correct amino acid?
Answers
Answer: If a mutation occurred in a DNA sequence but it still coded for the correct amino acid, the overall function of the protein that the gene encodes would likely not be affected.
Explanation: This is because the genetic code is redundant, meaning that multiple different DNA sequences can code for the same amino acid. However, it is also possible that the mutation could affect the function of the protein in other ways, such as by changing its structure or the way it interacts with other molecules. It's also worth noting that not all mutations have a significant effect on the organism, and some may even be beneficial.
Is the vesica urinaria superior or inferior to the prostate?
Answers
which of the following is a normal physiologic change that occurs in the mother's respiratory system during pregnancy?
Answers
The option that is a normal physiologic change that occurs in the mother's respiratory system during pregnancy is option B) increased respiratory rate and decreased respiratory reserve
What are the physiological changes to the respiratory system during pregnancy?Although there is no change in the respiratory rate during pregnancy, the TV is turned up, which increases minute ventilation and causes the respiratory alkalosis.
Pregnancy causes a number of physiological changes in the mother, such as an increase in fat and total body water, a decrease in plasma protein concentrations, particularly albumin, an increase in blood volume, cardiac output, blood flow to the kidneys, and the uteroplacental unit, as well as a decrease in blood pressure
In conclusion, increased minute ventilation brought on by enhanced respiratory center sensitivity and drive, compensatory respiratory alkalosis, and limited expiratory reserve capacity are the main physiologic changes that happen during pregnancy.
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See full question below
Which of the following is a normal physiologic change that occurs in the mother's respiratory system during pregnancy?
A) decreased respiratory rate and increased minute volume
B) increased respiratory rate and decreased respiratory reserve
C) increased respiratory reserve and decreased oxygen demand
D) increased respiratory depth and decreased respiratory rate