'What is the shape of red blood cell in human blood'. What is its function?
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You used blank to inderiectly find the blank of the objects
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Answer:
Explanation:
Ur question is not completed..
??
39. if natural selection eliminates the structures that are not required for an organism's survival, why do vestigial structures exist?
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Changes in the environment and the creature in question's behavioral habits can be blamed for the existence of vestigial structure. The likelihood that future kids would inherit the "normal" form of the trait declines as the trait's survival-enhancing function declines.
Vestigial structures are ones that don't seem to serve any purpose and look like leftover pieces from an ancestor. Vestigial structures include things like the human appendix, a snake's pelvic bone, and the wings of birds that can't fly. A characteristic that a species received from an ancestor but that is currently less complex and useful than in the ancestor is referred to as a vestigial structure. In most cases, the appendix, coccyx (the tail bone), and tonsils are examples of vestigial organs in humans. The tiny wings of kiwis and emus are also well-known examples, as are the eyes of blind cave salamanders and fishes.
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what is the meaning of heart of the lungs
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Oxygen is the heart of the lungs
number 3 quick pls n ty
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Answer: 10/7
Explanation:
Angela set out to determine how many genes
control the length of people's eyelashes. She
compared the length of eyelashes from 12 different
people. She measured each person's eyelash by
placing the eyelash on a metric ruler and measuring
the length directly.
What is a possible source of error in her
experiment?
A. She did not collect data from enough
people.
O B. She should have considered the number of
eyelashes on each eyelid in her data
collection.
O C. She may have had a difficult time making
accurate measurements directly.
O D. She did not include a control group.
Answers
The statement 'she did not collect data from enough people' is a source of error in an experiment (Option A).
What is the N sample?The N sample refers to the number of objects and/or persons tested during an experimental procedure.
The N sample is fundamental for eliminating the source of variation that may lead to errors.These errors are a consequence of faulty testing of a suitable number (N) sample.In conclusion, the statement 'she did not collect data from enough people' is a source of error in an experiment (Option A).
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Question 3 of 10 As in mitosis, in meiosis the chromosomes first become visible in
A. telophase.
B. anaphase
C. prophase
D. metaphase
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In order to avoid forcing air into the stomach during bag-mask ventilation, you should:______.
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Answer:
A
Explanation:
5. How can we say that added sugar is not necessary for our health (it's not), when we learned that
aerobic cellular respiration uses glucose as a fuel source? (hint - where did hunter/gatherers our
ancestors, get sugar?)
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Answer:
more than likely fruits and berries
or natural sugars
The body does not require any added sugar to stay healthy. Hunters/gatherers and our ancestors consumed fruits and milk that are natural sugar to obtain energy.
What is the difference between added sugar and natural sugar?Natural sugars are found in unprocessed food such as fruits and milk.Fruits contain fructose and milk contains lactose.On the other hand, added sugars are the artificial sweeteners that we often add to our daily diet in the form of white sugars and caloric sweeteners. From the perspective of health, it is always better to opt for natural sugar that keeps our body stable energy and stable metabolism.Added sugars are harmful when consumed in higher quantities.Hence, added sugar is not necessary for our health when we have learned that aerobic cellular respiration uses glucose as a fuel source that can be obtained from natural sugar.
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The function of Mitosis is to produce daughter cells that _______. have the same number of chromosomes as the parent cell but not the same genetic make-up are genetically identical to the parent cell have a random assortment of maternal and paternal chromosomes
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Answer:
The function of Mitosis is to produce daughter cells that are genetically identical to the parent cells. have the same number of chromosomes as the parent cell but not the same genetic make-up are genetically identical to the parent cell have a random assortment of maternal and paternal chromosomes
(The answer is underlined above)
Explanation:
Mitosis is a nuclear division. This division results in the generation of two daughter cells that are genetically identical to the parent cells and each daughter cell contains the same number of chromosomes and all cell content inherited from the parent cell. Mitosis is involved in cell development of new cells and old one, growth of both new cells and old ones, and asexual reproduction.
The chromosomes which are the DNA molecule that makes up the fundamental genome of the cell are copied before mitosis. This made sense to explain how important it is for chromosomes of the cell to be copied first before mitosis so as to enable the separation of the chromosome copies to give each cell a full set of identity similar to the one copied from.
The function of mitosis is to produce daughter cells, which are genetically identical to the parent cell.
What is mitosis?It is the process in which two daughter cells are produced, which are identical genetically to each other, and to the parent cell. The process initiates with a diploid cell with 2N chromosomes and 2X DNA content, and at the end of the process two identical cells get produced each having same number of chromosomes and DNA content.
The replication of all the eukaryotic cells takes place by the process of mitosis, apart from germline cells, which replicate via the process of meiosis. The different phases of mitosis are:
ProphaseMetaphaseAnaphaseTelophaseCytokinesisThus, the correct statement is that the daughter cells are genetically identical to the parent cell.
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A heterozygous woman carrying the recessive gene for color blindness marries a man who is red/green color blind. Assume the dominant gene is XC (allelle for normal vision) and the recessive gene is Xc (determines clolr blindeness). The mother's genotype is XCXc and the father's is XcY. What percentage of children will be color blind? What percentage of children will be normal? What will be the genotype of the F1 generation?
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Percentage of children to be color blind- 50%
Percentage of children to be normal- 50%
Genotypes of F1 generation: XCXc , XcXc, XCY, XcY
Explanation:
If we cross multiply these genotypes XCXc and XcY, the resulting offspring would be:
XCXc – normal vision female- 25%
XcXc – colorblind female- 25%
XCY – normal male- 25%
XcY- color blind male- 25%
please is science is today
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Answer:
When sunlight hits off the Moon's far side — the side we can't see without from Earth ... When sunlight reflects off the near side, we call it a full Moon.
1. green anoles, a lizard species native to Florida, live in the branches of trees.2. Brown anoles, a lizard species introduced into Florida in the 1950s live in the branches of the same trees3. green anoles and brown anoles have a similar diet.4. Both lizard species eat the hatchlings of the other lizard species.5. after many generations, green anolies were observed to have larger and stickier toe pads than earlier generations.6. within the same trees green anoles now occupy the higher branches.Which conclusion is best supported by scientists observations?A) adaptations of the green anoles allow it to cling to thinner branches than they previously could cling to.B. competition has resulted in the brown anole being adapted to live in taller trees than they previously lived in.C. competition has resulted in the green anole being adapted to consume food sources from a different type of tree.D. adaptations of the brown anole allow it to hunt for prey and branches in a different location of the tree than the green anole does.t to hunt for prey and branches in a differentlocation of the tree than the green anole does.
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According to the problem, after many generations, green anoles were observed to have larger and stickier toe pads than earlier generations and within the same trees, green anoles now occupy the higher branches. Note that the thinnest branches are generally the highest on the tree. This means that adaptations of the green anoles allow them to cling to thinner branches than they previously could cling to.
we can conclude that the correct answer is:
Answer:A) adaptations of the green anoles allow it to cling to thinner branches than they previously could cling to.
how is dna copied in your own words?
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Answer:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.
Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin. Several enzymes and proteins then work together to prepare, or prime, the strands for duplication. Finally, a special enzyme called DNA polymerase organizes the assembly of the new DNA strands. The following description of this three-stage process applies generally to all cells, but specific variations within the process may occur depending on organism and cell type.
Answer:
website answer... the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.
Explanation:
in my own words... the double helix and the separation of dna strands and the priming temlete strand and the assembly of a brand new dna segment
Explain the difference between genetic,environmental,social,and pathogenic factor
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Answer:
Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal's genes are expressed, which ultimately affects the animal's phenotype.
Explanation:
if the panda and the raccon have overlapping niches, which species would more likely be able to avoid direct competition?
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When the panda and raccoon have overlapping niches, the species that would be more likely to avoid direct competition is the one that can utilize resources more efficiently and effectively to avoid overuse and depletion.
So, the species that would more likely be able to avoid direct competition is the one that can make efficient use of the available resources.Two species may share a habitat but they do not share a niche. A niche refers to the role that an organism plays in an ecosystem. It includes an organism's feeding habits, habitat preference, reproduction, and behavior. In any given habitat, each species has its niche. When the niches of two species overlap, direct competition for limited resources occurs. The more similar their niches, the more intense the competition becomes.For example, if the panda and the raccoon both feed on the same bamboo plants and other vegetation, they will be in direct competition for food. However, if the raccoon is able to utilize other resources more effectively, such as finding other sources of food or inhabiting different areas of the habitat, it may be able to avoid direct competition with the panda and thrive in the same habitat.
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What does the Miller-Urey experiment tell us about the origin of life?
A. Life forms from lightning
B. inorganic materials can form organic molecules under the right conditions
C. it did not produce anything because the results of the Miller-Urey experiment were disproved
D. organic materials are always formed during an intense lightning storm
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Answer:
B inorganic materials can form organic molecules under the right conditions
The Case of the Putrid Pond
Problem Statement: A very large (500,000 sq. ft. 10 football fields) sludge pond is part of a waste treatment plant. The liquid in the pond is very viscous and sticky. From time to time, unwanted floating objects (dead animals, branches, etc.) appear on the pond and must be removed. Unfortunately, covering the pond is not an option.
(a) Devise ways to solve the above-mentioned problem through all the FOUR (4) brainstorming methods and describe it in detail. (15 marks)
(b) Draw and describe a fishbone diagram after organizing the ideas generated from (a). (10 marks)
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a. brainstorming methods methods include free association, forced attribute listing, and morphological analysis. b. fishbone diagram can be created the ideas generated from the brainstorming session.
(a) Devise ways to solve the problem through the four brainstorming methods:
Free association: Allow participants to freely generate ideas without judgment. Some ideas could include using nets, floating barriers, or specialized equipment to scoop out the floating objects.
Forced relationships: Connect unrelated concepts to stimulate new ideas. For example, combining the concept of magnets with the problem may lead to ideas involving magnetic devices to attract and remove the objects.
Attribute listing: Identify the key attributes or characteristics of the problem and generate ideas based on them. Attributes like viscosity and stickiness could lead to ideas such as using chemicals to reduce viscosity or developing adhesives to trap the objects.
Morphological analysis: Break down the problem into its components and systematically combine different elements to create new solutions. This method could result in ideas like using drones equipped with specialized tools or designing a conveyor system to remove the objects.
(b) A fishbone diagram can be created to organize the ideas generated from the brainstorming session. The main problem statement, "Removing unwanted floating objects from the sludge pond," is placed in the head of the fishbone diagram. The main branches of the fishbone diagram represent different categories of potential solutions, such as mechanical methods, chemical treatments, technological solutions, and environmental strategies. Each branch then includes sub-branches that further detail specific ideas within each category. This diagram visually represents the cause-and-effect relationship between the problem and potential solutions, providing a structured overview of the generated ideas.
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assume that a spherical cell, with a diameter of 20 μm, has spherical mitochondria, each with a diameter of 0.2 μm. if mitochondria occupy 10% of the volume of the cell, how many mitochondria are there?
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The total number of mitochondria is 1000 units of mitochondria.
Area of Cell,\(4\pi r^{2}\)= 4 x 3.14 x \(10^{2}\) = 1257μm
10% of the cell area = \(\frac{1257 x 10}{100}\) = 125.7 = 126
Area of Mitochondria,\(4\pi r^{2}\)= 4 x 3.14 x \(0.1^{2}\) = 0.1256 = 0.126
Total number of mitochondria in a cell are = \(\frac{Final Cell Area}{Mitochondria Cell Area}\)Total number of mitochondria in a cell are= \(\frac{126}{0.126}\)= 1000Mitochondria- It's the power house of the cell responsible for ATP/Energy production, and also carry out several other important function to help in surviving of the cell.
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Which of the following events may be a result of a new, fatal disease that affects only senior citizens
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Answer:
an increase in the death rate of post-reproductive individuals
Explanation: I hope this helps
Are these two frogs the same species , or kind of living things
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Answer:
Kind of living things
Explanation:
hope this helps
Answer:
These two frogs are probably different species.
Explanation:
The frogs both look like frogs, but they are different colors and have eyes that are different sizes and colors. Some of the bones in their skeletons also differ in shape. All these differences indicate they are different species.
Which of the following statements concerning chromosomes is/are true? Select all that apply.
selectk All That Apply
Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
Homologous chromosomes contain the same genes and the same allele combination.Homologous chromosomes contain the same genes and the same allele combination.
DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosomes are made and each of these copies are called sister chromatids.DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosomes are made and each of these copies are called sister chromatids.
After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell’s genes to the next generation of cells within the body.The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell’s genes to the next generation of cells within the body.
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The true statements concerning chromosomes are:
1. Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
2. Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
3. Homologous chromosomes contain the same genes and the same allele combination.
4. DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosomes are made, and each of these copies is called sister chromatids.
5. After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
6. The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell's genes to the next generation of cells within the body.
1. Chromosomes are composed of DNA and histones, which are proteins that help in packaging the DNA. This packaging allows the long DNA molecule to fit tightly into the nucleus of a cell.
2. Genes are located on chromosomes. They are segments of DNA that contain instructions for building functional products like proteins. These genes serve as the units of inheritance, carrying genetic information from one generation to the next.
3. Homologous chromosomes refer to the two copies of each chromosome in a diploid cell. While they contain the same genes, they may have different alleles, or versions of those genes, which contribute to genetic variation.
4. DNA replication occurs before the cell cycle. During replication, each chromosome's DNA is copied, resulting in two identical sister chromatids attached at a central region called the centromere. This ensures that each daughter cell receives a complete set of chromosomes during cell division.
5. Sister chromatids are exact copies of each other because they are formed through DNA replication. They contain identical allele combinations since they originated from the same chromosome.
6. The purpose of sexual reproduction and the replication of chromosomes is to pass on a copy of the cell's genes to the next generation of cells within the body. This ensures the transmission of genetic information, allowing for the development of new individuals with unique combinations of genes.
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sequence read 3 was synthesized by sequencing which strand of dna? neither 5' --> 3' and 3' --> 5' strands 3' --> 5' strand both 5' --> 3' and 3' --> 5' strands 5' --> 3' strand
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Sequence read 3 was synthesized by sequencing 5' --> 3' strand of DNA (Option D).
What is DNA sequencing?DNA sequencing is a technique used to find out the precise order of nucleotides (Adenine, Guanine, Cytosine, Thymine) in a DNA molecule. In other words, it is the method of decoding the DNA sequence. The determination of DNA sequence has numerous applications in various fields such as molecular biology, genetics, evolutionary biology, forensic science, medical diagnosis, and drug discovery.
In the case of DNA sequencing, the DNA molecule is synthesized in the 5' --> 3' direction. So, the DNA sequence is also written in the 5' --> 3' direction. Sequence read 3 (SR3) is one of the several DNA sequence reads obtained by the sequencing method. Sequence read 3 was synthesized by sequencing the 5' --> 3' strand of DNA.
Therefore, the correct option is 5' --> 3' strand (Option D).
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18.
If the parents of a family already have two boys, what is the probability that the next two offspring will be girls?
A)
1
B)
1/2
C)
1/3
D)
1/4
E)
1/8
Answers
The probability of the next two offspring being girls is 1/4, which corresponds to answer choice D
The gender of a child is determined independently of the gender of their siblings. This means that having two boys in the family doesn't impact the probability of the next two children being girls. The probability of having a girl is 1/2, and the probability of having a boy is also 1/2.
To determine the probability of the next two offspring being girls, we'll look at these two events happening together. We can find the combined probability by multiplying the individual probabilities:
Probability of having a girl (1st child) = 1/2
Probability of having a girl (2nd child) = 1/2
Combined probability = (1/2) * (1/2) = 1/4
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the adam's apple is: a the small indentation in between the thyroid and cricoid cartilages. b the upper part of the larynx that is formed by the thyroid cartilage. c below the thyroid cartilage and forms the upper part of the trachea. d the lower part of the larynx that is formed by the cricoid cartilage.
Answers
The Adam's apple is found in the upper part of the larynx that is formed by the thyroid cartilage.
Hence, option B is correct.
Where is Adam's apple?The cartilage that wraps around the front of our larynx, or voice box, is referred to as the Adam's apple or the laryngeal prominence. The name "Adam's" apple may have originated from the biblical account of Adam and Eve, in which Adam consumed an apple, the forbidden fruit, which lodged in his throat. Our voice box and vocal cords are shielded from damage by the Adam's apple, despite the fact that it has little to do with apples.
What is the purpose of Adam's apple?The Adam's Apple's main purpose is to safeguard the vocal chords directly behind it in both sexes, independent of the angle at which it is viewed. This function is shared by the thyroid cartilage that makes up the Adam's Apple.
Thus from above conclusion we can say that the Adam's apple is found in the upper part of the larynx that is formed by the thyroid cartilage.
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Can someone plz help me? :((
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AnswerA
Explanation:
why but it seems like the most logical answer honestly
Hydrochloric acid (HCI) is a strong acid.what ions are formed when HCI dissolves in water?
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Answer:
H₃O⁺ and Cl⁻
Explanation:
Hydrochloric acid, a strong acid will ionize completely in solutions.
When acids ionize in water, they produce excess hydroxonium ions in such solution.
HCl + H₂O → H₃O⁺ + Cl⁻
The HCl and H₃O⁺ forms a conjugate pair and likewise the H₂O and Cl⁻
In this ionization, water acts as the base.
Mechanisms for moving substances across the plasma membrane that require the use of cellular ATP include ______.
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Mechanisms for moving substances across the plasma membrane that require the use of cellular ATP include:
Sodium-potassium pump.Calcium ions moving from cardiac muscle cells.Glucose moving in or out of a cell.What is active transport?Active transport is a form of transport movement of substances across a barrier such as the plamsa membrane against their concentration gradient, using energy in the form if ATP.
Some examples of active transport in the body include:
Sodium-potassium pumpAmino acids moving along the human intestinal tract.Calcium ions moving from cardiac muscle cells.Glucose moving in or out of a cell.Leran more about active transport at: https://brainly.com/question/2183165
State the characteristic of tracheoles that help with gaseous exchange
in insects.
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Answer:
made up of a single epithelium layer to allow diffusion of gases.terminal ends of fine tracheoles are filled with a fluid in which gases dissolve and therefore transported in solution formIf gtp hydrolysis occurs on a tubulin molecule at the plus end of a microtubule protofilament before another tubulin molecule is added, what typically happens?.
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The microtubule depolymerizes will happen when gtp hydrolysis occurs on a tubulin molecule at the plus end of a microtubule protofilament before another tubulin molecule is added.
Microtubules provide a variety of purposes. For instance, they are crucial parts of cilia and flagella and provide the structured, rigid components of the cytoskeleton that provide shape to many cells (cellular locomotory projections). During cell division, they take role in the development of the spindle (mitosis).
The ATP-driven microtubule motor enzymes known as kinesins transform the chemical energy of ATP hydrolysis into mechanical work along microtubule pathways.
The separation of chromosomes during mitosis depends on microtubule depolymerization, which also aids in the placement of the yeast mitotic spindle. Dynein and kinesin, two molecular motors that are connected to microtubules, have crucial functions as well.
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Which process will directly result in organic matter being added to the soil?
water freezing in cracks of rocks
glaciers carving out a valley
river water eroding the banks of a stream
bacteria breaking down dead matter
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Answer:
I think it should be the last one, "bacteria breaking down dead matter" hope this helps !!