Which type of stem cell are fertilized eggs?
A. Totipotent
B. Multipotent
C. Pluripotent
D. Unipotent
Answers
Both stem cell types are pluripotent, meaning that they can generate almost any cell type in the human body. After generating the egg cells, the scientists fertilized the eggs through in vitro fertilization (IVF) using sperm from a healthy male mouse.
Answer:
The correct answer is Totipotent.
Explanation:
"Because I put it on my test an was correct".
<I promise that its the correct one>
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Related Questions
Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color. Red eye color is dominant to brown eye color. Use the Punnett square to determine the ratio of offspring with: Brown body and red eyes Brown body and brown eyes : Black body and red eyes : Black body and brown eye.
Answers
The ratio of offspring that possess the following phenotype is as follows:
Brown body and red eyes: 9Brown body and brown eyes: 3Black body and red eyes : 3Black body and brown eye: 1This question involves two genes coding for body color and eye color in fruit flies respectively. The brown body color allele (B) is dominant over the black body color allele (b) in the first gene while the red eye color allele (R) is dominant over the brown eye color allele (r) in the second gene. In a dihybrid cross between two fruit flies that are heterozygous for both genes i.e. BbRr × BbRr, the allelic combinations of gametes produced by each parent fruit fly will be:BbRr- BR, Br, bR and brUsing these gametes to complete a punnet square (see attached image), 16 possible offsprings will be produced in a ratio 9:3:3:1 where;Brown body and red eyes (B_R_) : 9Brown body and brown eyes (B_rr) : 3 Black body and red eyes (bbR_) : 3Black body and brown eye (BbRr) : 1Hence, the ratio of the offsprings will be 9:3:3:1Learn more about punnet square at: https://brainly.com/question/14504341?referrer=searchResults
Answer:
9, 16, 3, 16, 3, 16, 1, 16
Explanation:
Brown body and red eyes ⇒ 9 ⇒ 16
Brown body and brown eyes ⇒ 3 ⇒ 16
Black body and red eyes ⇒ 3 ⇒ 16
Black body and brown eyes ⇒ 1 ⇒ 16
A cow's herbivorous diet indicates that it is a(n)
O primary consumer
secondary consumer
decomposer
autotroph
producer
Answers
A cow's herbivorous diet indicates that it is a primary consumer.
A primary consumer is an organism that obtains its energy by consuming plants or other producers. In the case of a cow, it primarily feeds on plants and grasses, making it a primary consumer. Cows are herbivores and have specialized digestive systems that allow them to extract nutrients from plant material efficiently. They consume plant matter, such as grass, leaves, and hay, which provide them with the energy and nutrients they need for survival and growth.A decomposer is an organism that breaks down dead organic matter, while autotrophs, such as plants, are able to produce their food through photosynthesis. Secondary consumers are organisms that feed on primary consumers or other herbivores. Since cows consume plants directly, they are classified as primary consumers in the food chain.
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What do neurotransmitters do?
Answers
Answer:
b. Bind to specific receptor sites on the post-synaptic cell membrane
Explanation: is correct
is protein alive? explain why or why not
Answers
Answer:
Yet even an intact human brain can be biologically alive but incapable of consciousness, or “brain-dead.” Similarly, neither cellular nor viral individual genes or proteins are by themselves alive.
Explanation:
neither cellular nor viral individual genes or proteins are by themselves alive.
Compare the skeletal structure of each limb to the human arm. Relate the differences you see in form to the differences in function.
Answers
The amount of bones in the bat's skeleton are comparable to those in the human arm, but the bat's bones are different in size and proportion.
How to explain the skeletonThe bat's arm has long, elongated bones, fingers that are much longer than human hands, and thin membranes of skin that spread between the fingers to form wings.
A bird's wing has a very different skeletal structure from an arm. Birds' long, thin bones are fused together to form a single, comparatively light bone structure. The humerus, radius, and ulna, which are the upper arm, forearm, and wrist bones of the human arm, are the main bones in a bird's wing. Three hands now make up the bird's hand.
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Type the correct answer in the box. Spell all words correctly. What must you possess before you can teach in a particular state? You must have a teaching for the state in which you will teach
Answers
What will happen to the red blood cells in a hypertonic solution?Swelling and eventual crenationShriveling while maintaining the volume of cytoplasm.No net movement or shape change to the cells.© The red blood cells will experience crenation.
Answers
In an hypertonic solution, red cells would experiment loss of water, which translates into reduction of the volume of the cytosol, and eventually crenation, which means the destruction of the cell by dehydration (D).
Which of the following normally leads to the production of functional messenger RNA in eukaryotic cells?
Answers
Answer: The removal of portions of RNA known as intervening sequences (introns)
Explanation:
The removal of portions of RNA is known as intervening sequences (introns).
What is the process of splicing?In order to enable the translation of mRNA into a protein, RNA splicing puts together the protein-coding regions (exons) and cuts out the intervening, non-coding segments of genes (introns) from pre-mRNA.
Intron sequences are cut out and exon sequences are joined during the splicing process.
As RNA matures, introns are cut out via RNA splicing, which means that they are not expressed in the resulting messenger RNA (mRNA) product.
In contrast, exons continue to be chemically bound to one another to produce mature mRNA. Exons are expressed sequences, whereas introns can be thought of as intervening sequences.
Therefore, the removal of portions of RNA is known as intervening sequences (introns).
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a healthy infant is born weighing 7 pounds. at one year, what should the child’s approximate weight be, assuming normal development? 14 14 35 35 28 28 21
Answers
The child's approximate weight should be 21 pounds, assuming normal development.
The approximate weight of a healthy infant at one year, assuming normal development. The terms you provided are: 14, 14, 35, 35, 28, 28, 21.
A healthy infant typically triples their birth weight by their first birthday. Since the infant was born weighing 7 pounds, you can calculate the approximate weight at one year by multiplying the birth weight by 3.
Step 1: Multiply the birth weight by 3.
7 pounds × 3 = 21 pounds
So, at one year, the child's approximate weight should be 21 pounds, assuming normal development.
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The approximate weight of the child at one year old should be around 21 pounds.
Assuming normal development, the approximate weight of a healthy infant at one year old can vary, but it is generally expected to triple their birth weight. In this case, the infant was born weighing 7 pounds, so we can estimate their weight at one year by multiplying the birth weight by 3.
7 pounds * 3 = 21 pounds
In addition to the approximate weight of 21 pounds at one year old, here are a few more details about a healthy infant's growth and development during the first year:
1. Rapid Weight Gain: During the first few months, infants tend to experience rapid weight gain. They may gain about 5-7 ounces (140-200 grams) per week on average.
2. Growth Spurts: Infants typically go through several growth spurts in their first year, where they may experience more significant weight gain over a short period. These growth spurts often occur around 2-3 weeks, 6 weeks, 3 months, 6 months, and 9 months.
3. Individual Variation: It's important to note that every child is unique, and there can be considerable variation in growth patterns. While the tripling of birth weight by one year is a general guideline, some infants may grow faster or slower, and their weight at one year old could fall outside the typical range.
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7.State the functions of each of these polysaccharides.
Celluse-
Startch-
Glycogen-
Answers
The functions of each of the below polysaccharides are: -
Cellulose- Cellulose, a hard, fibrous, & water-insoluble polysaccharide, is crucial in maintaining the structure and stability of plant cell walls. The plant cell walls are made up of microfibrils, which are collections of cellulose chains, or fibrils, which are collections of microfibrils and polysaccharides.
Starch- Starch is a kind of carbohydrate that is present in all plants, including grains, fruits, and vegetables. A healthy diet must include starchy foods since they provide you energy, fiber, as well as a feeling of fullness. Starch molecules are broken down by the body into glucose, which serves as the body's main fuel source.
Glycogen- When it comes to maintaining our muscles well-fueled for exercise, glycogen is crucial. Our muscles will use their glycogen reserves while we workout. Our blood glucose and liver-stored glycogen can both be used to power our muscles.
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(01.02 MC)
Darren is a wildlife biologist studying deer and wolf species in a nature reserve. He wants to know what is causing a decrease in the wolf population within the nature
reserve. What should Darren do next to find the answer to his question?
O Formulate a question about the wolf and deer populations in the reserve
Research causes of wolf population decline within other nature reserves
O Make a prediction explaining why wolf populations are decreasing
O Create controlled variables for a wolf population study of the reserve
Answers
Darren should research the causes of wolf population decline within other nature reserves to find the answer to this question.
Hence Option (b) is correct.
Wildlife originally referred to undomesticated animal species, but it has now expanded to include all living things that develop naturally or exist in the wild without human intervention.
Some major reasons that can cause a decline in the population of wolves or any wildlife are :
1) Exploitation: The demand for animals has increased as human populations have increased. So they overexploit the wildlife for selfish reasons.
2) Habitat loss
3) Human Land Use and Wildlife Competition for Space that leads to degradation of the habitat.
4) Invasive species: Invasive species are animals that are not native to the area and which enter the area, quickly breed, and spread.
5) Climate change due to pollution, global warming, and some other factors.
6) Diseases
Hence, Darren should research the causes of wolf population decline within other nature reserves to find the answer to this question.
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Which of the following statements correctly defines geology?
a). It is the scientific study of the history of Earth and the processes that shape it
b). It is the scientific study of the history of the solar system and the process that shape it
c). It is the scientific study of the development of life on Earth and the processes that change it
d). It is the scientific study of the structure of Earth's atmosphere and the processes that change it
Answers
Answer:
A.
Explanation:
A). It is the scientific study of the history of Earth and the processes that shape it.
an owl eats a mouse nocturnally and a hawk eats a mouse during the day is an example of
Answers
An owl feeding on a mouse in the night and a hawk eating a mouse during daytime are examples of nocturnal and diurnal birds respectively.
Birds which are active during the night are known as nocturnal birds e.g. owl. Owls sleep during the daytime. Nocturnal birds wake from their sleep at night in order to hunt and feed as well as carry out other activities.
Diurnal birds, on the other hand, remain active throughout the day e.g. hawk. These birds hunt as well as feed themselves during the daytime and sleep during the night. The nocturnal birds also possess an exceptional night vision.
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What are effects of deforestation on biodiversity
Answers
Answer:
Deforestation can directly lead to biodiversity loss when animal species that live in the trees no longer have their habitat, cannot relocate, and therefore become extinct. Deforestation can lead certain tree species to permanently disappear, which affects biodiversity of plant species in an environment.
hint:think about the direction of movement caused by stress
(just please complete the table above and answer it with respect)
Answers
Answer:
Compression is a reverse fault, tension is normal fault and shear is strike slip fault.
Explanation:
Compression is a reverse fault, tension is normal fault and shear is strike slip fault. Reverse fault is opposite of normal fault which occurs due to the stress of compression on an object in which both object come close together. Due to tension stress, rocks pulling apart from each other, produces a normal fault. Shear is strike slip fault because in strike-slip fault, the two blocks slide over one another
Since the Wicked Witch from the Wizard of Oz melted away when she was doused with water, what do you think her cell membranes were made of?
Answers
Answer:
silicone
Explanation:
cause it melts
What factors help blood move through veins?
Answers
The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.
Mention three amiono acids
Answers
Lysine
Alanine
Leucine
Valine
Since photosynthesis primarily takes place in the leaves, it is essential that glucose can be transported out of the
cell to other parts of the plant. The selectively permeable plasma membrane only allows certain molecules to
cross freely through the phospholipid bilayer.
Is glucose a molecule that is allowed to cross the selectively permeable membrane freely?
Answers
Answer: A
No, glucose passes through a channel protein with the concentration gradient via facilitated diffusion.
Explanation:
Test on edge
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what does earth have that makes it different from other planets
Answers
Answer:
Life, water, huge population of living organisms, biodiversity of species.
Explanation:
Earth is the only planet in our solar system that can maintain living organisms. It is the only planet in our solar system that is suitable for humans and animals to live on. Only planet with water suitable for a human/animal to drink. Many different types of species and organisms live on earth. And there is a large amount of living organisms living on earth.
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Charles Darwin concluded that the 13 species of finches on the Galapagos islands:A. all adapted to the same predators in different ways.B. All of these.C. probably evolved from one single ancestral species from the mainland.D. are identical to species on the mainland.
Answers
The correct answer is C. probably evolved from one single ancestral species from the mainland. Darwin realized that Finches differed form their relatives in mainland. The finches he saw were all particular on their own, so he concluded that their isolation from mainland and their insular habitat make them to evolve different traits, eventually each finch become a different species.
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Cite evidence as to why people on Earth were afraid of the passing of the tail of Halley's Comet in 1910. Include why the gas cyanogen (CN), played a role in this fear.
Answers
Answer: In 1910, people were scared of Halley's Comet passing by because they thought comets were bad luck. They also thought that the gas in the tail of the comet could make a deadly gas called hydrogen cyanide.
Explanation: In 1910, people on Earth were afraid of the passing of the tail of Halley's Comet due to sensationalized media reports and superstitions about comets being harbingers of disaster. The gas cyanogen (CN) played a role in this fear because it was believed to be present in the tail of Halley's Comet, and there were concerns that when the Earth passed through the tail, the gas could react with the atmosphere to produce deadly hydrogen cyanide (HCN) gas. This fear was fueled by an incorrect claim made by French astronomer Camille Flammarion that he had detected HCN in the tail of the comet, leading to widespread panic and even the sale of "anti-comet pills" and gas masks. However, subsequent observations showed that the actual amount of cyanogen in the comet's tail was much lower than previously thought, and there was no danger to Earth from its passing.
Answer:
The passing of Halley's Comet in 1910 caused widespread fear and anxiety among the general public. The main cause of fear was the widespread belief that the comet's tail contained toxic gases life-threatening gases, including cyanogen (CN).
At the time, people believed that comets were made up of poisonous gases and that the Earth would pass through the tail of Halley's Comet. Get instant, well-researched and cited essays and questions from proffrank01 at g m ail.con. You get an added advantage because you get answers on request. Sorry for this, but this is the only way to get through to help you. I understand the challenges that come with finding a reliable homework helper. Furthermore, sensationalist reporting in the media fueled this fear by exaggerating the potential dangers of the comet.
In reality, the tail of Halley's Comet was made up of gas and dust, and posed no direct threat to life on Earth. However, the presence of cyanogen in the tail of the comet did cause some concern among astronomers and the general public.
Cyanogen is a highly toxic gas used in industrial processes, and exposure to high concentrations can be fatal. The amount of cyanogen in the tail of Halley's Comet was relatively small. However, there were concern that it could pose a risk to Earth if the gas entered the atmosphere.
However, scientists and astronomers were quick to reassure the public that there was no cause for alarm. They pointed out that the amount of cyanogen in the comet's tail was too small to pose a significant threat. Furthermore, the gas would likely be dispersed harmlessly in the upper atmosphere.
The fear and anxiety surrounding Halley's Comet in 1910 highlight the powerful role that misconceptions and sensationalist reporting can play in shaping public perceptions and attitudes towards scientific phenomena.
Explanation:
Which of the following is the monomer for nucleic acids?
Answers
Some scientists would say that nucleic acids are
the most important molecules in living cells;
others might suggest that proteins are more
important; and some might say that life could
not continue without a supply of carbohydrates.
Write a sentence in support of each of these
points of view.
Answers
Answer:
In my pov:The nucleic acids are the most important molecules in living cells beacuse It is the macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The proteins are more important because Our body needs protein to stay healthy and work the way it should. More than 10,000 types are found in everything from your organs to your muscles and tissues to your bones, skin, etc. Protein is also a critical part of the processes that fuel your energy and carry oxygen throughout your body in your blood.The life could not continue without a supply of carbohydrates beacuse Carbohydrates are important to the daily lives of living organisms. They store energy (starches), provide energy for cells (glucose), and provide structure to plants and some animals.Explain how to distinguish different species by their DNA.
Answers
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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irrigation is especially important in southwestern home landscapes and gardens because annual rainfall is low. true or false?
Answers
True. Irrigation is especially important in southwestern home landscapes and gardens because annual rainfall is low.
Irrigation mitigates the effects of low rainfall and boosts output by preserving soil and water balance. Surface water and groundwater resources are used for irrigation purposes. Several irrigation methods are used to supply water to cultivated land.
Irrigation helps plants grow better with a supply of water according to the plant's needs. Ultimately, it helps economic development. Irrigation water promotes soil moisture, increases plant fibre water content, and degrades nutrients for plant use.
In areas of low or seasonal rainfall, agriculture could not be sustained without irrigation. In areas with irregular rainfall, irrigation improves crop growth and quality. By enabling farmers to grow crops on a consistent schedule, irrigation also ensures a more reliable food supply.
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Which of the following are true about the direction of information flow in the visual system? Information in the left visual field ends up in the right hemisphere The optic chiasm is where some visual information crosses over to the contralateral hemisphere (while some other information doesn't cross over) No information ever crosses over. What you see in the left half of the worid stays in the left half of your brain. Each eye gets information from both halves (both the left and the right) of the visual field
Answers
Information in the left visual field ends up in the right hemisphere.
The statement is true. In the visual system, the left visual field is processed by the right hemisphere of the brain, while the right visual field is processed by the left hemisphere. This arrangement is due to the crossing over of visual information at the optic chiasm. At the optic chiasm, some fibers from each eye cross to the contralateral hemisphere, while others remain on the same side. This crossing over allows for the integration of visual information from both eyes and both halves of the visual field.
Therefore, what we see in the left visual field is processed by the right hemisphere of the brain, and vice versa. It is important to note that while information from the left visual field ends up in the right hemisphere, each eye does receive information from both halves of the visual field, contributing to the overall visual perception and processing.
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What do we mean when we say that the resulting ADP molecule is recycled?
Answers
Macrophages ingest and digest many pathogens. which organelle plays a major role in the activity of macrophages?
Answers
Macrophages ingest and digest many pathogens. The organelle that plays a major role in the activity of macrophages is lysosome.
Macrophages are the immune cells that belong to the category of white blood cells. They elicit an immune response in order to protect the body from foreign invaders. They can activate other immune cells as well. The type of immunity that macrophages provide is innate immunity.
Lysosome are the cell organelles that consists of hydrolytic enzymes. The lysosome burst open whenever the cell becomes damaged or is infected. This is the reason why macrophages are found to be associated with lysosome.
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why do you need to use a water plant in the process of investigating and collecting the gas produced during photosynthesis?
Answers
Answer:
Plant material will generally float in water. This is because leaves have air in the spaces between cells, which helps them collect CO 2 gas from their environment to use in photosynthesis. When you apply a gentle vacuum to the leaf disks in solution, this air is forced out and replaced with solution, causing the leaves to sink.
Answer:
Plant material will generally float in water. This is because leaves have air in the spaces between cells, which helps them collect CO 2 gas from their environment to use in photosynthesis. When you apply a gentle vacuum to the leaf disks in solution, this air is forced out and replaced with solution, causing the leaves to sink.
Explanation: