Answer:
Vesicles that contained self-replicating RNA grew, split, and passed their RNA to daughters.
Rising, moderate levels of estrogen inhibit tonic LH secretion, whereas high levels of estrogen stimulate the LH surge. True False
Rising, moderate levels of estrogen inhibit tonic LH secretion, whereas high levels of estrogen stimulate the LH surge. is true.
Luteinizing hormone (LH) activates bodily functions that are crucial for sexual development, reproduction, and health. LH is secreted by a little organ in your brain called the pituitary gland. Your ovaries or testes undergo alterations as a result of LH, enabling your reproductive system to operate normally.However, the feedback function of estradiol shifts to a positive one during prolonged exposure to elevated levels in the late follicular phase of the reproductive cycle, causing a rise in GnRH release from the brain and signaling the pituitary LH surge that causes ovulation.As circulating estrogen levels rise, the hypothalamic-pituitary axis is stimulated, causing a surge in the release of luteinizing hormone (LH). The positive estrogen feedback that initiates ovulation is this.learn more about Luteinizing hormone (LH) here: https://brainly.com/question/10050537
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A teacher divides her class into four groups. She assigns
each group the task of measuring the volume of a liquid in
a container three times. The teacher already knows that
the volume is 18 mL.
Based on the results from each group, which group makes the most precise
measurements of the liquid's volume?
A. Group A: 17.9 mL, 19.1 ml, 21.0 mL
B. Group B: 18.5 mL, 18.0 mL, 17.8 mL
OC. Group C: 19.1 mL, 19.0 mL, 17.0 mL
D. Group D: 20.0 mL, 20.1 mL, 19.9 mL
Answer:
Group D
Explanation:
Precision is how close the measurements are to each other
Give an example of a toxin. How can toxins contribute to diabetes?
Answer:
Example of toxin; Arsenic.
How does it contribute to diabetes; overconsumption
Complete the sentence: During periods of weight loss, the ________ of fat cells dwindles, but not their __________. Group of answer choices number, size shape, size size, number number, shape
As their contents are used for energy during weight loss, fat cells get smaller in size, but their overall number doesn't change.
Where Does Fat Go When Weight Is Lost?Fats are liberated from fat cells and transferred to the mitochondria, the energy-producing organelles in your body's cells, by sustaining a steady calorie deficit. Here, a number of procedures break down the fat to create energy.These same cells may become smaller when you lose fat, yet they continue to exist in roughly the same numbers. Therefore, fewer fat cells, not more, are the main cause of changes in body form.Also implied by this is that even when you lose weight, fat cells are still present and can readily regain their original size if efforts are not made to keep the weight off.To learn more about Weight loss refer to:
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which buffer system's primary role is to prevent changes in extracellular fluid (ecf) ph caused by metabollic and fixxed acids
The buffer system which plays the most vital role to prevent changes in the pH of the extracellular fluid caused by metabolic and fixed acids is the bicarbonate buffer.
The bicarbonate buffer-
The bicarbonate buffer system is a system which is responsible for the regulation of homeostasis in the extracellular fluid and in blood. This mechanism regulates the pH of the extracellular fluid by neutralizing the hydrogen ions which are produced in the extracellular fluid. This system generates carbonic acid which is weak and is volatile. This carbonic acid can cleave and dissociate into carbon dioxide which is removed from the body by the lungs.
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Swash is the down beach movement of water after a wave breaks on the
beach
True
Or
False
Answer:
True
Explanation:
When the broken wave reaches the base of the wet beach it collapses and runs up the beach face as swash or uprush in the swash zone
What was the role of the revivalists of the Second Great Awakening in the abolitionist movement?
A.
The revivalists of the Second Great Awakening were against the abolitionist movement.
B.
Many of the revivalists of the Second Great Awakening campaigned against slavery.
C.
Revivalist preachers didn’t believe in slavery.
D.
Most revivalists taught their enslaved people to preach to the American Indians.
The role of the revivalists of the Second Great Awakening in the abolitionist movement is that revivalist preachers didn’t believe in slavery so they contribute in the abolitionist movement against slavery.
What is the role of revivalists of the Second Great Awakening in the abolitionist movement?Social activism influenced the abolition groups and provide support in their movement. They began efforts to reform prisons and care for the handicapped and mentally ill people.
So we can conclude that option C is the correct answer.
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If
the gene for a sex linked trait is located on the X chromosome, will the trait be
exhibited by only males, only females, or both?
write an essay how water moves from the soil to leaves of a mesophyte
Water moves from the soil to the leaves of mesophytes by osmosis and xylem conduction.
What are mesophytes?Mesophytes are plants that are adapted to moderate water environments only. In other words, they cannot survive extremely or extremely wet environments.
Water moves from the soil to the leaves of mesophytes as follows:
1. Water moves into the root hair by osmosis
2. Water is conducted upward from the root hairs by special cells known as xylems.
3. Conducted water reaches various plant parts, including leaves.
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The ______ in the cell sap are responsible for the red and blue colors of many fruits and vegetables.
Anthocyanins
The anthocyanins in the cell sap are responsible for the red and blue colors of many fruits and vegetables.
What are anthocyanins?Anthocyanins are a family of intensely colored red, purple, and blue pigments that are present in plants. They belong to the larger class of plant-based compounds known as flavonoids. All plant parts, including fruits, seeds, shoots, flowers, and leaves, are rich in flavonoids. By luring pollinators, they promote plant reproduction and shield plants from environmental stresses including UV (ultraviolet) light, drought, and cold.
Six major forms of anthocyanins are identified among the approximately 6,000 flavonoids:
CyanidinDelphinidinMalvidinPelargonidinPeonidinPetunidinAnthocyanins are typically abundant in foods like red, purple, blue, and black fruits, vegetables, and grains. The largest concentrations are found in berries, especially black elderberries and aronia berries (chokeberries). Strawberries, raspberries, blackberries, and blueberries are other excellent sources.
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The condition in which the placenta is implanted in the lower uterine segment near or over the internal cervical os is _________________________.
The condition in which the placenta is implanted in the lower uterine segment near or over the internal cervical is Placenta previa.
What is placenta previa?
Placenta previa is a condition in which the placenta covers all or part of the opening to the cervical aperture, which sits at the top of the vagina, and lies very low in the uterus. One in 200 pregnancies results in placenta previa.
What is called when the placenta is attached to the uterus?The syndrome known as placenta increta refers to the placenta's abnormally strong attachment to the uterus and subsequent embedding in the muscle wall of the organ. A disorder known as placenta percreta.
When placenta percreta occurs?
placenta percreta occurs when the placenta connects to the uterus and spreads across it, perhaps affecting surrounding organs (such as the bladder).
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Certain substances, like caffeine and citrus juices, are classified as diuretics. This means that they cause diuresis in the kidneys. What effect will diuretics have on the urinary system
Diuretics increase the volume of urine excreted.
What are diuretics and diuresis?Diuretics:Diuretics, often known as water pills, aid in the removal of salt (sodium) and water from the body. The majority of these drugs encourage your kidneys to excrete more sodium in your urine. By assisting in the removal of water from your circulation, salt aids to reduce the volume of fluid moving through your veins and arteries. Blood pressure falls as a result.
Diuresis:When the kidneys filter too much body fluid, it is called diuresis. As a result, you produce more urine and need to use the restroom more frequently.
The normal adult will urinate four to six times each day, producing between three cups and three quarts of urine on average. Even though their fluid consumption may not have altered, people with diuresis urinate more frequently than that.
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________ involves two dissimilar organisms living together with no injury to either. An example is burrowing owls sharing the underground homes of prairie dogs. Competition Predatorism Commensalism Mutualism Parasitism
Commensalism involves two dissimilar organisms living together with no injury to either.
The connection between two organisms, one that benefits and the other that does not benefit or harm.
Monarch butterflies and milkweed are examples of commensalism. Commensalism is a relationship between two organisms in which one benefits from the other but does no harm. Symbiotic organisms receive food, shelter, mobility, or support.
Another example of commensalism is when one organism uses another as a means of transportation. Many insects, fish, and other animals use each other in this way.
Commensalism is an interaction between two different individuals who do not produce results. Both organisms do not benefit each other and do no harm to each other. An example is a barnacle that grows in a whale, but the interaction is the interaction between two different individuals that leads to positive results.
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Structure A is a _____. The cell membrane with an integral molecule that consists of two similar parts with a specific recess. There are many particles in the extracellular fluid. One of these particles is labeled A. Structure A is a _____. The cell membrane with an integral molecule that consists of two similar parts with a specific recess. There are many particles in the extracellular fluid. One of these particles is labeled A. solvent water molecule phospholipid transport protein solute
Structure A is a Solute The cell membrane with an integral molecule that consists of two similar parts with a specific recess. There are many particles in the extracellular fluid. One of these particles is labeled A.
A solute that has been dissolved in a solvent creates a homogenous mixture known as a solution. The solute is the thing that needs to dissolve, and the solvent is the thing that needs to dissolve it. With a wide variety of solutes and solvents, solutions can be created.A homogenous mixture of a solute in a solvent is referred to as a solution.A solute is a substance that is present in a solution in a lower quantity.The substance in a solution that is present in the largest proportion is known as a solvent.learn more about solute here: https://brainly.com/question/25326161
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Which phylum of protozoa contains organisms that are non-motile, obligate intracellular parasites?.
The phylum of protozoa that contains organisms that are non-motile, obligate intracellular parasites is Apicomplexa.
What is Apicomplexa?Apicomplexa contains many species that cause disease, including the Plasmodium species that cause Malaria.
Apicomplexa also sporozoan are the spore-producing phylum of protozoa. They are parasitic and lack contractile vacuoles and locomotor processes, they live within the body cavities or the cells of almost every kind.
Thus, this could be the answer.
Which phylum of protozoa contains organisms that are non-motile, obligate intracellular parasites? which phylum of protozoa contains organisms that are non-motile, obligate intracellular parasites? ciliates euglenozoa amoebozoa apicomplexa?
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Watson and crick first built a triple helix model of DNA. In this model, the nitrogenous pieces for on the outside of the Daynam molecule, in the phosphate groups were on the inside.
at that time, why did it seem reasonable for the bases to be on the outside of the DNA molecule?
It is expected that the bases are located on the outside of the DNA molecule because it allows access in an easier mode for the cell.
What is DNA?Deoxyribonucleic acid (DNA) is a double helix composed of two long strands of nucleotide bases.
In DNA, nucleotide bases are expected to interact with the environment in order to make easier the process of transcription and replication.
In conclusion, bases are located on the outside of the DNA molecule to access in an easier mode for the cell.
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What connections can you make about the relationship between energy and the number of organisms in a food chain?
Answer: I think it would mix energy with organisms
Explanation:
becaus they just shatter all over every were.
At an inhibitory synapse (IPSP), the postsynaptic membrane experiences A. hyperpolarization B. all of the above C. an increase in permeability to both Na and K D. an increase in membrane potential E. an increase in membrane potential and hyperpolarization
At an inhibitory synapse (IPSP), the postsynaptic membrane experiences all of the above and is denoted as option B.
What is Hyperpolarization?
This is described as the opposite of depolarization and involves the cell's membrane potential being more negative.
At an inhibitory synapse (IPSP), the postsynaptic membrane becomes hyperpolarized which is characterized by an increase in permeability to both Na and K.
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The symptoms of an immune complex reaction are due to Group of answer choices destruction of the antigen. complement fixation. phagocytosis. antibodies against self. cytokines.
The symptoms of an immune complex reaction are due to complement fixation.
What is immune complex reaction?When antigen-antibody (immune) complexes are deposited in tissues, Type III, or immune-complex, reactions which are characterized by tissue damage brought on by complement activation. The same antibody classes that take part in type II reactions are implicated here. —IgG.
A typical immunological response includes immune complexes. Immune complexes can, however, lead to autoimmune diseases, infections, and cancers when they build up in the blood.
An enzyme complex called C4bC2a breaks down the complement protein C3 into the anaphylatoxin subtypes C3a and C3b. C1q can be activated by apoptotic and necrotic cells, as well as by acute phase proteins such C-reactive protein, in addition to IgG and IgM immune complexes.
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PLEASE HURRY!!!
Which is the function of the type of muscle that is pictured below
Support and movement of the skeleton
Movement of food through the digestive system
Contraction and relaxation of the heart
Generation and conduction of electrical signals
This is is a smooth muscle hence it can perform the function of contraction and relaxation of the heart. (Option C)
What is a smooth muscle?The smooth muscle refers to the muscle that is not under conscious control. They control some involuntary movements such as the beating of the heart and breathing.
Thus muscle that is pictured here is a smooth muscle hence it can perform the function of contraction and relaxation of the heart.
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Most of the tree is made of xylem cells and therefore, most of the tree is____________. involved in carrying oxygen dermal tissue dead meristem
Most of the tree is made of xylem cells and therefore, most of the tree is dermal tissue.
The epidermis is the single layer of cells that covers a plant's exterior and is made up of dermal tissue. The epidermis might be compared to the plant's outer layer. The majority of the interactions between a plant and its surroundings are mediated by it. The cuticle, a waxy substance secreted by epidermal cells, covers, waterproofs, and shields plants' above-ground parts. The cuticle guards against toxins, water loss, abrasions, and infections.The vascular plants' xylem is responsible for moving water and nutrients from the soil to the stems and leaves. Xylem provides a crucial "supporting" role by giving tissues and organs strength, preserving the structure of the plant, and resistance to bending.
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population is:
A. All of the individuals of a
species in a particular ecosystem.
B. All of the biotic and abiotic
factors in an ecosystem.
C. All of the individuals in a
particular ecosystem.
D. All of the individuals of a
species.
Population is all of the individuals of a species in a particular ecosystem. Correct option is A.
Population refers to a group of individuals of the same species that live and interact in a particular geographic area. Option A accurately defines a population as all the individuals of a species present within a specific ecosystem or geographical location. A population is a fundamental unit of ecological study and plays a crucial role in understanding the dynamics of species interactions, reproduction, and adaptation in a given habitat.
In ecology, a population is a fundamental unit of study that refers to a group of individuals of the same species living in a particular geographic area or habitat. This group of individuals of the same species shares common characteristics and can potentially interbreed with one another. They interact with each other and their environment, influencing their survival, reproduction, and overall dynamics.
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The parasympathetic nervous system A. dominates in quit, relaxed situations B. has neurons that display nicotinic receptors C. all of these D. has long preganglionic fibers that end on terminal ganglia, which lie in or near the effector organ E. releases a postganglionic neurotransmitter that binds with muscarinic receptors
c. All of these. The parasympathetic nervous system satisfies all the options.
Parasympathetic nervous system:The parasympathetic nervous system is a branch of the nervous system that largely regulates visceral organs like glands. One of the two antagonistic sets of nerves that make up the autonomic nervous system is the parasympathetic nervous system; the other set consists of the sympathetic nervous system. Contrary to the sympathetic system, which triggers the so-called fight-or-flight response, the parasympathetic system does not play a major role in the maintenance of life. The cranial nerves, particularly the vagus nerve, and the lumbar spinal nerves make up the nerve fibers of the parasympathetic nervous system. These nerves cause the pulse to slow down and the digestive secretions to increase when activated.
The parasympathetic nervous system dominates in quiet, relaxed situations and has long preganglionic fibers that end on terminal ganglia, which lie in or near the effector organ . It also releases a postganglionic neurotransmitter that binds with muscarinic receptors.
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As you finish your college degree, you learn that the mountain behind your childhood home in the hills of the town you grew up are slated to be mined for coal using the mountain top removal method. Your parents, who still leave there are worried for their health and safety and do not want to lose the beautiful forested creek and ravine behind their property. However your brother is out of work and could use the mining job. What would you attempt in this situation?
In this situation, I would try not to allow the exploitation of the mountain to occur, degrading nature and the property that her family has, because her brother may look for another job, but nature would not recover.
What are the impacts of coal mining?The burning of coal for energy produces highly toxic effluents, such as mercury and other heavy metals such as vanadium, cadmium, arsenic and lead. In addition, the release of carbon dioxide causes pollution in the atmosphere, exacerbating global warming and contributing to acid rain.
With this information, we can conclude that Sedimentation and pollution of rivers due to improper disposal of unused material would make life on the family's property unfeasible.
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Where do deep ocean
currents begin?
A. In the top 10% of water starting
at the surface.
B. In the 100 meters just above
the ocean floor.
C. Below 400 meters from the
surface.
D. Below 1000 meters from the
surface.
Deep ocean currents begin in the 100 meters just above the ocean floor and is denoted as option B.
What is Ocean current?
This is depicted by the sea water being continuously moved from one place to another through wind etc.
Deep ocean current exist thousands of meters below the surface in areas close to the ocean floor which therefore makes it the most appropriate choice.
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Describe the shifting relationship between religion and the development of the field of biology from the perspective of the early taxonomists we learned about. How did religion factor into the work of 1. Aristotle, 2. Biblical Scholars and 3. Linneaus . Would you describe the field of biology as being forever at odds with faith-based understandings of nature? Why or why not?
Religion influenced the works of Aristotle, Biblical Scholars and Linneaus as it helped them to develop a scientific explanation of life around them as created by God but are able to undergo changes due to variation.
What was the relationship between science and religion?Earlier in the development of science, religion and science were intricately interwoven.
In the field of biology, early taxonomists classified living things based on the influence of religion. However, there has being a shift in belief in creation to evolution of living things from non-living matter.
Aristotle believed in creation by an abstract God and classified living things into plants and animals.
Biblical scholars described life as created by God based on the influence of religion.
Linneaus believed that life was created and that species were immutable but could undergo changes.
Since, biology is the study of life, and faith-based understandings of nature believe in creation, the two ideas though sometimes at odds, are not forever at odds.
In conclusion, religion had played a big role in development of the science of biology and still does today.
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help please doesn’t have to be perfect
Answer:
Using fur color and eye colour as a trait for mice. Will the genes of the mice be independent or linked?
hope this is okay it's not perfect:-)
Part C
Projected values are only estimates. Can you think of either a natural or artificial factor that could increase or decrease the actual amount of wind energy the United States produces in the future?
Natural or Artificial factor that could increase the actual amount of wind energy the United States produces in the future
Foresight of the Wind.The transmission has a variable top speed.Permanent magnet motor with a constant output speed.Intelligent control of torque and rotational speed.What is wind power source?Generally, Wind turbines are the primary component in converting wind energy into usable electricity.
In conclusion, When compared to the emissions produced by burning fossil fuels, wind power is clearly the more environmentally friendly option.
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Answer:
Technological advancements in the future could lead to the production of higher-efficiency turbines, which could generate more electricity than originally predicted. Climate changes over time could affect wind speeds in a region, leading to higher or lower energy production
Explanation:
You carry out a self-cross of the offspring produced from a cross between homozygous pea plants with yellow and green seeds. You observe a 3:1 phenotypic ratio in the next generation. What is the underlying genotypic ratio
If the phenotypic ration is 3:1 then the underlying genotypic ratio will be 1:2:1.
The genotype of an individual is their own DNA pattern. More specifically, the two alleles a person acquired for a particular gene are referred to by this phrase. The observable character of this genotype is called a phenotype.The genotype of an organism is the particular arrangement of alleles for a particular gene. As an illustration, the genotypes for the flower-color gene in the pea plants were red-red, red-white, and white-white. The physical representation of an organism's allelic combination is called a phenotype.for example let us take the example of the height of pea plant. the T represent tall plant (dominant) while t represents short/dwarf plant (recessive). In this monohybrid cross the phenotypic ratio observed is 3:1 i.e., three tall plants and one dwarf plant.However the genotypes of the four offspring will be TT, Tt, Tt, tt.Hence the genotypic ratio comes out to be 1:2:1.The same is shown in the Punnett square below
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The disease that causes the development of numerous small cavities in the brain of infected individuals due to death of neurons, producing a spongy appearance, is called _______.
The disease that causes the development of numerous small cavities in the brain of infected individuals due to death of neurons, producing a spongy appearance, is called transmissible spongiform encephalopathy.
What is transmissible spongiform encephalopathy?The family of uncommon progressive neurodegenerative brain diseases known as transmissible spongiform encephalopathies (TSEs) or prion diseases affects both humans and animals. They usually result in death and have lengthy incubation periods. Once symptoms appear, they also proceed quickly.
TSEs are believed to be caused by prions, abnormally folded proteins, that build up in the brain causing brain damage and the characteristic symptoms associated with the disease. Contaminated medical equipment and neural tissue can spread prions infections. Instances of this include transmission through tainted dura mater grafts or corneal transplants.
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