The adaptations of the circulatory system that occurs shortly after birth is that The foramen ovale closes and seals, blocking blood between the atria from mixing and The ductus arteriosus collapses and stops pulmonary trunk blood from mixing with aortic arch blood. That is option A and C.
What is circulatory system?The circulatory system is defined as the one of the major system that consists of a pumping center( the heart) and the blood vessels which helps to deliver oxygenated blood to the body cells.
The developing foetus also has its own fetal circulation within the uterus where by the following bypass occurs:
The oxygenated blood from the inferior vena cava bypassed from the left atrium to the right atrium without entering the left ventricle,The deoxygenated blood from the left atrium is bypassed by the ductus arteriosus to the umbilical artery without being transported to the lungs.Learn more about the heart here:
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If a complex molecule can be digested to produce sugars, then the original molecules should be classified as which type of biomolecule?
According to the research, the correct option is carbohydrates. If a complex molecule can be digested to produce sugars, it should be classified as carbohydrate.
What are carbohydrates?They are monosaccharides or simple sugars or biomolecules (molecules that constitute a living being) that are formed mainly by carbon and hydrogen atoms.
They are rapidly digestible and produce glucose in the blood, being essential for all people since the energy they provide allows the development of muscular and neuronal activity and maintains stable blood pressure and body temperature.
Therefore, we can conclude that according to the research, the correct option is carbohydrates. If a complex molecule can be digested to produce sugars, it should be classified as carbohydrates.
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when farming overgrazing climate change and or seasonal drought change farmland into land that cannot support plant life, it is called?
Answer: Desertification
Explanation:
PROMPT: Write an essay in which you explain how Terra Snider builds an argument to
persuade her audience that middle and high schools should open later. In your essay, analyze
how Snider uses one or more of the features in the directions that precede the passage (or
features of your own choice) to strengthen logic and persuasiveness of her argument. Be sure
that your analysis focuses on the most relevant features of the passage.
Your essay should not explain whether you agree with Snider's claims, but rather explain how
Snider builds an argument to persuade her audience.
The assignment wants to know how you interpret the argument and how you develop an essay. For that reason, I can't write your essay, but I'll show you how to write it.
Essay structureIntroduction: Introduce the subject that the essay will address, that is, show who Terra Snider is, what she stands for, and how she wants to persuade the public to agree with her. The introduction must be a short paragraph.Body: Write at least two paragraphs. These paragraphs should be long because you will need to detail Snider placements. The first paragraph shows how she uses the resource known as logos to show the logic of her argument, and how she uses the resource known as ethos to show her knowledge of the subject. In the second paragraph, reinforce how Snider presents evidence to show how the arguments contrary to hers are incorrect and do not represent something that should be encouraged in society.Conclusion: Write one more short paragraph where you address the most important points of your essay and reinforce whether or not Snide is effective in her argument.Below you can see an example of how your introduction might be written.
Terra Snider is an activist and co-creator of the movement formed by parents and teachers who seek a change in school schedules. Snider says that classes should start later, as they would optimize students' sleep and promote a series of positive effects.
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A scientist wants to display the proportion of 250 homes that have solar
panels compared with the proportion that do not have solar panels. What type
of visual display should the scientist use?
OA. A data table
B. A line graph
C. A circle graph
D. A bar graph
Answer: I say A
Explanation: because data is easier to look at from a table than anything else.
HELP!!!!!!
Jack and Jill have no children. However, if they can produce four daughters, they will inherit four million dollars from their grandparents. What is the probability of having four girls?
Answer:
tbh in my opinion i dont know if its right i think its 26%
Explanation:
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
what is reactants bla bla bla
Answer:
a substance that takes part in and undergoes change during a reaction.
Explanation:
blalalalalalalaalalalalalalalalallaalanbalanslkandkljewndnhsliearJCBGj hcuhsaknm
evolutionary significance of bryophytes
The bryophytes, which include mosses, liverworts, and hornworts, have significant evolutionary significance in the plant kingdom despite their relatively small size and simple structure, they played a crucial role in the colonization of terrestrial environments and the subsequent evolution of higher plants.
Here are some key evolutionary significance of bryophytes:
Adaptation to land: Bryophytes are considered some of the earliest land plants.
They were the first plants to transition from aquatic to terrestrial habitats, paving the way for the colonization of land by other plant groups.
They developed strategies to overcome challenges such as desiccation, limited nutrients, and anchorage to the soil.
Moisture retention: Bryophytes have adaptations that enable them to retain moisture.
They possess specialized structures, such as rhizoids and mucilage, that help absorb and retain water.
This ability to retain water and survive in relatively dry environments was an important adaptation for the conquest of land.
Soil formation: Bryophytes, especially mosses, contribute to soil formation.
They can grow on bare rocks and soil, where their rhizoids aid in weathering and breaking down substrates.
Their decomposed remains also contribute organic matter to the soil, enriching its fertility.
Habitat creation: Bryophytes provide habitat and microenvironments for other organisms.
Their dense mats or cushions create shelter, moisture, and temperature buffering for a variety of organisms, including insects, small invertebrates, and microorganisms.
They contribute to the overall biodiversity and ecosystem functioning.
Reproductive strategies: Bryophytes have unique reproductive strategies. They produce spores that can disperse and colonize new habitats.
Their reproductive structures, such as gametophores and sporophytes, exhibit various adaptations that allowed for successful reproduction in terrestrial environments.
Ecological indicators: Bryophytes are sensitive to environmental changes, making them valuable ecological indicators.
Their presence, abundance, and diversity can indicate environmental conditions such as air quality, moisture levels, and habitat disturbance.
Monitoring bryophytes can provide insights into the health and integrity of ecosystems.
Overall, bryophytes played a crucial role in the evolution and colonization of land by plants.
Their adaptations, ecological roles, and evolutionary history make them important subjects of study for understanding plant evolution, ecosystem dynamics, and the colonization of terrestrial environments.
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The bryophytes, which include mosses, liverworts, and hornworts, have significant evolutionary significance in the plant kingdom despite their relatively small size and simple structure, they played a crucial role in the colonization of terrestrial environments and the subsequent evolution of higher plants.
Here are some key evolutionary significance of bryophytes:
Adaptation to land: Bryophytes are considered some of the earliest land plants.
They were the first plants to transition from aquatic to terrestrial habitats, paving the way for the colonization of land by other plant groups.
They developed strategies to overcome challenges such as desiccation, limited nutrients, and anchorage to the soil.
Moisture retention: Bryophytes have adaptations that enable them to retain moisture.
They possess specialized structures, such as rhizoids and mucilage, that help absorb and retain water.
This ability to retain water and survive in relatively dry environments was an important adaptation for the conquest of land.
Soil formation: Bryophytes, especially mosses, contribute to soil formation.
They can grow on bare rocks and soil, where their rhizoids aid in weathering and breaking down substrates.
Their decomposed remains also contribute organic matter to the soil, enriching its fertility.
Habitat creation: Bryophytes provide habitat and microenvironments for other organisms.
Their dense mats or cushions create shelter, moisture, and temperature buffering for a variety of organisms, including insects, small invertebrates, and microorganisms.
They contribute to the overall biodiversity and ecosystem functioning.
Reproductive strategies: Bryophytes have unique reproductive strategies. They produce spores that can disperse and colonize new habitats.
Their reproductive structures, such as gametophores and sporophytes, exhibit various adaptations that allowed for successful reproduction in terrestrial environments.
Ecological indicators: Bryophytes are sensitive to environmental changes, making them valuable ecological indicators.
Their presence, abundance, and diversity can indicate environmental conditions such as air quality, moisture levels, and habitat disturbance.
Monitoring bryophytes can provide insights into the health and integrity of ecosystems.
Overall, bryophytes played a crucial role in the evolution and colonization of land by plants.
Their adaptations, ecological roles, and evolutionary history make them important subjects of study for understanding plant evolution, ecosystem dynamics, and the colonization of terrestrial environments.
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Which non-renewable source of energy does the world use the most?
Answer:
Renewable energy comes from sources that will never deplete, no matter how much is used. An example of this is wind energy, which had been growing in popularity in countries like India and Germany. Nonrenewable energy makes up 85% the energy used on earth—the most popular form of energy being oil.
An amino acid's unique characteristics is defined by the ________.
In prokaryotes, certain proteins act to regulate genes by binding to DNA. What could be the effect of these binding proteins?
Answer:
increase/reduced transcription of those genes
Explanation:
protein binds either allowing or preventing transcription
12. Soil removed from a field by water or wind often collects as sediment in streams, transferring crop nutrients to the stream. How could this problem
be mitigated?
OA. Fumigation
OB. Conservation tillage
OC. Neonicotinoids
OD. Bt toxin
The problem of soil sediment collecting in streams and transferring crop nutrients can be mitigated through various measures, but the most appropriate option from the given choices would be B. Conservation tillage.
Conservation tillage practices involve minimizing soil disturbance and maintaining crop residues on the field surface. This helps to improve soil structure, reduce erosion, and enhance water infiltration. By implementing conservation tillage techniques such as no-till or reduced tillage, soil erosion caused by water or wind can be significantly reduced, thereby decreasing the amount of sediment reaching streams.
This approach promotes sustainable agriculture by conserving soil, preserving nutrients in the field, and protecting water quality in streams.
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10) In a species of cactus, the number of spines on a plant is genetically determined. The graph above shows
frequency distributions for populations of the cactus species growing in the presence or absence of two herbivores:
peccaries (a New World pig) and wasp larvae. Which of the following best accounts for the different frequency
distributions in the graph?
Number of Cacti
(A) Peccaries eat cacti with the greatest number of spines, and wasp larvae show no preference with respect to
spine number.
(B) Peccaries eat cacti with a smaller number of spines, and wasp larvae eat cacti with a greater number of spines.
(C) Wasps have increasing difficulty depositing eggs on cacti with more spines, and peccaries show no preference
with respect to spine number.
(D) Both peccaries and wasp larvae will eat the most abundant types of cacti, which are the plants with the greatest
number of spines.
Peccaries eat cacti with a smaller number of spines, and wasp larvae eat cacti with a greater number of spines best accounts for the different frequency distributions in the graph.
Therefore option B is correct.
What is a herbivores?A herbivore is described as an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet.
The frequency distributions of the cactus populations in the presence and absence of the two herbivores indicates that the presence of the herbivores which affects the distribution of spine numbers.
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A zebra and a donkey can successfully mate to produce offspring known as a zonkey. Zonkeys are infertile, display a mixture of donkey and zebra traits, and have a different number of chromosomes from both parent species. Would zonkeys be classified as their own species? Explain with at least one full sentence.
Zonkeys are the offspring produced from a cross between a zebra and a donkey. These are classified as a separate species as it shows characteristic
What are Zonkeys?A zonkey is a offspring produced from the cross between a zebra and a donkey. Donkeys are closely related to zebras and both of these animals belong to the horse family.
Zonkeys are the used as beasts of burden (work animals) because of their great strength and stamina to hold heavy weights. It is also believed that they inherit resistance to some pests and diseases as well from their zebra fathers. Some zoos also use them to offer rides to the public.
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12. Use a model to explain how matter changes during
biochemical reactions like photosynthesis and respiratio
In the process of photosynthesis, oxygen and glucose are produced from water and carbon dioxide. As a consequence of consuming glucose, the plant creates oxygen. Oxygen and glucose are transformed into water and carbon dioxide during cellular respiration. By-products of the process include carbon dioxide, water, and ATP, which is turned into energy.
What are Cellular Respiration and Photosynthesis?Commonly used notation for photosynthesis is: 6CO2 + 6H2O C6H12O6 + 6O2. This means that the products, a sugar molecule and six oxygen molecules, are produced when light energy, which is harvested as chemical energy during photosynthesis, is converted from the reactants, six carbon dioxide molecules and six water molecules, into a sugar molecule and six oxygen molecules. The byproduct is the emission of oxygen. In the process of breaking down glucose during cellular respiration, oxygen is consumed, which also produces heat and chemical energy.To learn more about Photosynthesis and Cellular Respiration refer to:
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What is a living cell?
Answer:
Though they are often debated, there are eight main characteristics that define a cell as living.
The first is genetic code. All living things contain DNA, which is like the instruction manual for life. DNA is contained in each cell, and passed from parent to offspring.
The second is growth and development. Whether by creating more cells or creating more organelles within the cell, all living things grow and develop.
The third characteristic is reproduction. Reproduction can be sexual or asexual, but in the case of single cells, it is asexual.
The fourth characteristic is response. All living things, including cells, react to external stimuli, such as temperature or salinity.
The fifth characteristic is homeostasis. Homeostasis is the condition by which living things maintain a stable internal environment in the midst of an ever-changing external environment.
The last three characteristics go hand in hand, and are sometimes combined, but in my mind they are distinctly separate.
Sixth is consumption, which is taking in food and other materials. A cell specifically takes in molecules such as water or glucose during consumption.
Seventh is metabolism, which is using materials consumed in order to create energy. Living cells use enzymes to break down materials to produce ATP (adenosine triphosphate), which is usable energy.
Finally, all living cells undergo excretion in some form. Some examples in cells include exocytosis and osmosis.
These 8 characteristics, though often controversial, determine a cell as living.
similar between skin cell and fat cell
Answer:
Initial Vision Step Location
Dipin Ghimire
1. Where does the initial step in vision occur? Optic nerve Ganglion cell Retina OVisual cortex
The initial step in vision occurs in the retina, which is a layer of tissue at the back of the eye that contains light-sensitive cells called photoreceptors. When light enters the eye, it is absorbed by the photoreceptors, which convert it into electrical signals. These signals are then transmitted to other cells in the retina, such as ganglion cells, which transmit the signals to the brain via the optic nerve. The visual cortex, which is located in the brain, processes these signals to create the visual images that we see.
Dipin Ghimire
similar between skin cell and fat cell
Both skin cells and fat cells are types of cells that are found in the human body. Some of the similarities between these two types of cells include:
Both skin cells and fat cells are made up of cell membranes, cytoplasm, and nuclei.
Both types of cells contain organelles such as mitochondria, ribosomes, and endoplasmic reticulum.
Both skin cells and fat cells are capable of dividing and reproducing to maintain the integrity and function of the tissues in which they are found.
Both skin cells and fat cells are essential for the proper functioning of the body and play important roles in maintaining health and well-being.
For a type of pea plant, round seeds (R) are dominant to wrinkled seeds (r). A pea plant
with the genotype Rr is crossed with another pea plant with the genotype Rr. What
percent of the offspring are expected to have wrinkled seeds?
O 100%
O 75%
O 50%
O 25%
Serena looks at her cheek cells in science class and is surprised at how they look. She learns what distinguishes living things from non-living things and knows all living things are made of cells.
She also knows that unrelated organisms living in a similar environment evolve similar characteristics. This process is convergent evolution. What occurred as a result of the discovery of convergent evolution?
The discovery of convergent evolution has had significant implications in the field of biology and our understanding of the natural world.
Convergent evolution refers to the phenomenon where unrelated organisms living in similar environments develop similar characteristics or traits. This process occurs as a result of similar selective pressures and adaptations to the environment, rather than through shared ancestry. The discovery of convergent evolution has led to several important outcomes.
Firstly, it has provided evidence for the power of natural selection in shaping the evolution of organisms. By observing independent lineages that have developed similar traits, scientists can infer that these traits offer some advantage in a specific environment. This understanding reinforces the principles of Darwinian evolution and highlights the importance of adaptation in survival and reproductive success.
Additionally, convergent evolution has allowed scientists to uncover new insights into the relationships between organisms. By recognizing similar traits in distantly related species, researchers can reconstruct evolutionary histories and understand the selective forces at play. This has led to the revision of some taxonomic classifications, as shared traits can be misleading indicators of evolutionary relatedness.
Moreover, the discovery of convergent evolution has spurred advancements in fields such as biomimicry and biotechnology. By studying the convergent evolution of specific traits, scientists have gained inspiration for designing innovative technologies and materials. For example, the development of Velcro was inspired by the mechanism of burrs attaching to animal fur.
In summary, the recognition of convergent evolution has deepened our understanding of evolutionary processes and has practical implications in various scientific disciplines. It has highlighted the role of adaptation, expanded our knowledge of organismal relationships, and inspired technological advancements.
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seeds do not germinate until conditions are right. how does this compare with the hatching of a bird’s egg? what advantage does this adaptation give plants?
Just like an egg, plants need to find all the resources to grow and germinate. Some advantages of seeds are that they are more resistant, can be pollinated and allow for greater genetic variability.
What is the process of seed development?The process of seed development involves an orderly sequence of events. Among them are cell divisions, accumulation of reserves and loss of water. Seeds develop, undergo physiological rest, cryptobiosis, quiescence and dormancy.
Seeds are extremely important structures for the survival of plants in the terrestrial environment. They are responsible for protecting the embryo, in addition to ensuring the dispersion of species throughout the environment.
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Need answer please asap
Which term belongs
in the blank in the
cartoon?
A. RNA
B. Protein
C. DNA
Science is hard bro-science be hard.
Answer:
2nd drop down is computer or adc. 3rd drop down is ADC. 4th is DAC
Explanation:
Answer:
the brain
Explanation:
it cant tell the future
i have to sh*t oh no its coming out oh no its all over my hands
A radio has a resistance of 175 ohms, with a current flowing through it of 700mA. What is the potential difference?
The potential difference (voltage) across the radio is 122.5 volts.
How to calculate the potential difference voltage across the radio?First we can use Ohm's law, which states that voltage (V) is equal to the product of current (I) and resistance (R):
V = I x R
In this case, the resistance of the radio is given as 175 ohms, and the current flowing through it is 700 milliamps, or 0.7 amps.
We can plug these values into the equation to get:
V = 0.7 A x 175 Ω = 122.5 volts
Therefore, the potential difference (voltage) across the radio is 122.5 volts.
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Place each label in the appropriate box to distinguish intramembranous ossification from endochondral ossification.
Epiphyseal plates Parietal bones Occipital bone Phalanges Compact-spongy-compact "sandwich" Ossification of hyaline cartilage Femur Bony collar formation Bones form between sheetlike layers of connective tissues
Intramembranous Ossification Endochondral Ossification
________________________ _____________________
Intramembranous Ossification:
Bones form between sheetlike layers of connective tissuesParietal bonesOccipital boneOssification of hyaline cartilageEndochondral Ossification:
Epiphyseal platesPhalangesCompact-spongy-compact "sandwich"FemurBony collar formationWhat are intramembranous ossification and endochondral ossification?Intramembranous ossification is the process by which bone is formed from fibrous membranes.
The process of developing bone from hyaline cartilage is called endochondral ossification.
Chondrocytes divide and secrete hyaline cartilage, which lengthens long bones. Osteoblasts switch out cartilage for bone.
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Which of the following DNA strands could have been the template for this RNA?
The DNA strand which will serve as a template for RNA is the coding DNA strand which has complimentary sequence to the RNA molecule which is to produced.
With is a DNA template?A DNA template is a copy of DNA from which another DNA molecule or an RNA molecule is made from.
DNA templates are important in DNA replication as well as protein synthesis.
The DNA template is known as a template strand.
Some DNA strands codes for proteins and are known as coding DNA strands.
Most DNA strands on the other band do not code for proteins and are known as non-coding DNA strands.
Therefore, the DNA strand which will serve as a template for RNA is the DNA strand which has complimentary sequence to the RNA molecule which is to be produced.
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Identify the part of the plant where photosynthesis primarily occurs.
Answer: In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.
Explanation:
Answer:
on plato its the first box
Explanation:
An understanding of predator-prey interactions is necessary to explain changes in the population dynamics in any community. We think of top-level consumers as predators, when in fact, many animals can be both predators and prey. Think of the lady bugs that dine on aphids in the garden that are later eaten by birds flying by. This graph shows a long studied predator-prey relationship, the wolf-moose study of Isle Royale. Notice not only are there changes in the prey, the moose, which we wold expect, but also changes in the predator population. What might cause an increase in the mortality rate of the wolf population of Isle Royale?
There could be several factors that could cause an increase in the mortality rate of the wolf population on Isle Royale. Some possible reasons could be:
Competition for resources: If the number of wolves on Isle Royale increases, they may have to compete with each other for resources like food, water, and shelter. This could lead to increased aggression among the wolves, resulting in higher mortality rates.Disease outbreak: Wolves can be susceptible to various diseases, and an outbreak could cause a spike in mortality rates. This could be especially true if the disease is highly contagious or if the wolves are already under stress due to other factors.Human activity: Human activity on the island could also contribute to increased wolf mortality rates. For example, hunting, accidental trapping, or vehicle collisions could all lead to a decline in the wolf population.Inbreeding: Inbreeding can lead to decreased genetic diversity, which can make a population more susceptible to disease and other health problems. Over time, this could lead to increased mortality rates among the wolf population.\( \: \)
Select the correct answer
How much of the electromagnetic spectrum is visible to us?
A. all of it
B. none of it
C. most of it
D. a small part of it
A small part of the electromagnetic spectrum is visible to us. Therefore, option (D) is correct.
What is electromagnetic spectrum?The electromagnetic spectrum includes all types of electromagnetic radiation, ranging from radio waves with the longest wavelengths to gamma rays with the shortest wavelengths. This spectrum includes various types of radiation, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
Of all the different types of radiation on the electromagnetic spectrum, only a small part of it is visible to the human eye. Visible light is the part of the spectrum that has wavelengths between approximately 400 and 700 nanometers, which corresponds to the colors of the rainbow. We can perceive these colors as they stimulate the cells in our eyes called "cones."
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Give one example of drug that is ligand to muscarine receptors
Answer:
Muscarinic Agonists
Scopolamine.
Muscarinic Acetylcholine Receptor.
Eicosanoid Receptor.
Acetylcholine.
Pilocarpine.
Cholinergic.
Carbachol.
Agonist.