The phase during which crossing over of chromosomes occurs is prophase 1.
What is meiosis?Meiosis is a type of cell division mammals which leads to the production of sex cells such as egg and sperm.
There are various phases in meiosis which include:
prophase, metaphase, anaphase, and telophase.The stage of meiosis in which crossing over of chromosomes occurs is prophase 1.
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Birds and other infrahuman animals develop a preference for the person or object to which they are first exposed during a brief, critical period after birth. This is referred to as:
Imprinting
Imprinting is the brief, critical period after birth for birds and infrahuman animals.
Attachment: a deep emotional connection that develops in the second half of a baby's first year between the caregiver and the youngster. Unstable, conflicted attachment: When their mothers leave, babies frequently cry uncontrollably, and when their mothers return, they behave inconsistently, Sometimes attempting to make touch and other times pushing their moms away.
What is Imprinting?In psychobiology, imprinting is a type of learning in which a very young animal focuses its attention on the first thing it sees, hears, or touches and then proceeds to pursue that object. In nature, the object is almost always a parent; however, experiments have also employed other animals and inanimate things.
Imprinting has only been extensively researched in birds, particularly chickens, ducks, and geese, but it appears that many mammals, certain fishes, and insects, as well as some newborn mammals, experience a similar type of learning.
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In 1926, Kurosawa and colleagues extracted a compound from a fungus that caused abnormal growth in rice seedlings that eventually led to the death of the plants. What plant hormone was found in the extract and was responsible for the disease symptoms
In 1926, Kurosawa and colleagues extracted a compound from a fungus that caused abnormal growth in rice seedlings that eventually led to the death of the plants. Gibberellin was the plant hormone found in the extract and was responsible for the disease symptoms.
A group of plant hormones known as gibberellin promotes germination, flowering, and stem elongation.When rice farming in Japan was being harmed by the Bakanae (foolish seedling) illness in antiquity, Gibberellins were first discovered. It led to the rice seedlings being longer and developing pale yellow leaves, which reduced the yield.Kurosawa, a Japanese scientist, was attempting to determine why and how Gibberella fujikuroi, a fungus, was producing these alterations in plants. He was successful in filtering the fungal extract that was discovered to be in charge of the disease's onset. Then, in 1935, Yabuta separated the active ingredient and gave it the names gibberellins A and B. This crystalline form of the active ingredient was remarkably heat stable.learn more about Gibberellin here: https://brainly.com/question/7477324
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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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Finally, write a short paper (100 words) describing the "impact" of genetic study on society. Provide at least two references for your paper.
The "impact" of genetic studies on society is fundamental because it is involved in many scientific areas ranging from crop production to precision medicine.
What are genetic studies?Genetic studies refer to the studies involving the genetic material that is inherited from parents to their offspring.
All hereditary traits have a genetic basis that can be analyzed by studying the linear order of nucleotides in the DNA sequence.
In conclusion, Mendel's studies and the evolutionary theory of Darwin are two key pieces of reference for the genetics field.
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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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In humans, if a non-disjunction event led to an individual with a genotype of xo, they would:.
Answer:
They would: answer choices be female because they do not have a Y chromosome.
The concept of evolution by way of natural selection is a central tenet in biology that has been tested in numerous ways by many scientists. Evolution by way of natural selection is most likely which type of concept?
Evolution based on natural selection is most likely a hypothesis that can be accepted as true due to repeated experimentation with similar results.
What is a hypothesis?In Science, a hypothesis is primarily considered to be a tentative or an educated guess and it can be defined as a testable explanation for an observation or a specific experimentation (scientific) problem.
In this context, we can infer and logically deduce that evolution based on natural selection is most likely a hypothesis that can be accepted as true due to repeated experimentation with similar results.
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2. Imagine that you are in a building and the fire alarm goes off. All of the doors around you lock shut, and you smell smoke.
a. What is the main problem that your central nervous system will try to solve?
b. What is the somatic nervous system likely to be doing?
c. Which part of the autonomic nervous system is likely to be active, and what will it be doing?
The main problem that your central nervous system will try to solve is how to get out of this place.
B. What is the somatic nervous system probably doing?It is releasing stimuli so that the pupil dilates and the blood goes to the muscles, to give greater physical vigor.
ç. Which part of the autonomic nervous system is likely to be active and what is it doing?The autonomic nervous system is a part of the nervous system that functions independently of will and consists of neurons that conduct impulses from the central nervous system (brain and/or spinal cord) to the glands, smooth muscle and heart muscle.
What are the physiological responses of adrenaline binding in the sympathetic autonomic system?Adrenaline increases the overall activity of the heart, increasing both the heart rate and the force of contraction. The heart has β1 receptors in both contractile and specialized myocardium. When turning on, a series of cardiac effects can happen.
With this information, we can conclude that the main problem that your central nervous system will try to solve is how to get out of this place.
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Carolina was always hungry. After visiting the doctor, she was told that her _____ was producing too much insulin, causing low blood sugar. pituitary gland adrenal gland gonads thyroid gland pancreas
Answer:
pancreas
Explanation:
the pancreas is what releases insulin in the body
Pancreas' beta cells produce insulin in response to the blood's growing glucose levels. When blood glucose levels increase, the pancreas begins to secrete insulin.
What is insulin hormone?Glucose from the blood can be absorbed by the cells in the muscles, fat, and liver because of insulin.
These cells use the glucose as fuel, or they can turn it into fat when they need it. Other metabolic processes, such the breakdown of fat or protein, are also impacted by insulin.
Glucose, a form of sugar, is lowered in the blood by the hormone insulin. When the blood glucose level rises, such as after eating, it is produced by the pancreatic beta cells and released into the blood.
Glucose can either be saved for later use or utilized as fuel in the body's cells with the assistance of insulin.
Therefore, Pancreas was producing too much insulin, causing low blood sugar. Pituitary gland adrenal gland gonads thyroid gland.
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This is a map of Yosemite national park. look for areas on the map that could be prone to mass movements. In which area could a mass movement prevent people or wildlife from accessing the resources they need? Explain your reasoning
The Stratford Canyon due to its slopy nature, is an area where a mass movement could prevent people or wildlife from accessing the resources they need.
What is mass movement?Mass movement refers to the bulk movements of soil and rock debris down slopes due to gravitational.
Types of mass movement include:
RockfallMudflowLandslideRotational slipBased on the give map, the area where a mass movement could prevent people or wildlife from accessing the resources they need is the Stratford Canyon due to its slopy nature.
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Answer:
Here’s one possible answer:
All the mountains and elevated regions are susceptible to mass movements. I would be particularly concerned about landslides that could occur along the roads going into and out of the park, such as Highway 140. A landslide could block one or more roads, which would prevent or delay people and supplies from getting in and out of the park.
Explanation:
Edmentum
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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Proteins, while not typically used for supplying daily calorie needs, can supply the body with ______ kcal per gram.
Proteins, while not typically used for supplying daily calorie needs, can supply the body with 4 kcal per gram.
What is protein?An incredibly complex, naturally occurring molecule known as a protein is made up of amino acid residues connected by peptide bonds.
What is calorie?Calories are a unit of measurement for the energy content of food and beverages. Our bodies store extra calories as body fat when we consume more calories through food and drink than we burn off. If this keeps happening, we might eventually gain weight.
What calories do?Calories are the units of energy used by your body during food digestion and absorption.
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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:
Give an example of a toxin. How can toxins contribute to diabetes?
Answer:
Example of toxin; Arsenic.
How does it contribute to diabetes; overconsumption
Is hemophilia a dominant or recessive trait? And why?
9. Which of the following is the example of the action of the autonomous nervous system? A. Kicking a ball B. Swinging of arms C. Swallowing of food D. Movement of food in small intestine ON
Movement of food in the small intestine. Thus, option "D" is correct.
What is the autonomous nervous system?ANS is divided in two opposite systems: sympathetic and parasympathetic:
Parasympathetic nervous system: characterized by the tag "rest and digest" it decreases the heart rate, blood pressure, and breath. It increases the gastrointestinal motricity, letting the organism resting (this happen after a meal).
Sympathetic nervous system: characterized by the tag "fight or flight" it increases the heart rate, blood pressure, and breath. It decreases gastrointestinal motricity, letting the organism focus on its environment (this happen when we are in danger).
Thus, option "D" is correct.
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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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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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Read the incomplete statements.
Mitochondria act as the _[blank 1]_ of the cell. Mitochondria break down the food molecules and _[blank 2]_. Mitochondria have _[blank 3]_ surrounding them.
Which option correctly completes these statements?
blank 1: guardians
blank 2: produce energy
blank 3: two membranes
blank 1: guardians , , blank 2: produce energy , , blank 3: two membranes, , , ,
blank 1: power plants
blank 2: produce energy
blank 3: two membranes
blank 1: power plants , , blank 2: produce energy, , blank 3: two membranes, , , ,
blank 1: guardians
blank 2: absorb energy
blank 3: one membrane
blank 1: guardians , , blank 2: absorb energy, , blank 3: one membrane, , , ,
blank 1: power plants
blank 2: absorb energy
blank 3: one membrane
blank 1: power plants ,
blank 2: produce energy, ,
blank 3: two membranes, , , ,
Mitochondria act as the power plants of the cell. Mitochondria break down the food molecules and produce energy . Mitochondria have two membranes surrounding them.The correct option that completes the statements is: 3
blank 1: power plant
blank 2: produce energy
blank 3: two membrances.
1. Mitochondria act as the "power plants" of the cell: This analogy refers to the role of mitochondria in generating energy for the cell. ATP is used to power various cellular processes essential for the cell's function and survival.
2. Mitochondria break down the food molecules and "produce energy": This statement highlights the main function of mitochondria, which is to break down food molecules, such as glucose and fatty acids, through the process of cellular respiration. During cellular respiration, the breakdown of food molecules releases energy in the form of ATP, which is then utilized by the cell for its metabolic activities.
3. Mitochondria have "two membranes" surrounding them: Mitochondria are unique among cellular organelles because they have a double-membrane structure. This two-membrane structure plays a vital role in the efficiency of ATP production and the regulation of molecules entering and leaving the mitochondria.
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You burn a log on fire. You use the fire to warm yourself and to light up the room to read a book. Which energy transformation is taking place?
Answer:
Chemical energy
Explanation:
It transforms into light energy so you can read, and heat energy which warms you up
definition of cephalization
Answer:
Is development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end.
Answer:ephalization is defined as the evolutionary trend toward nervous system centralization and the development of a head and brain.
Explanation:
Which of the following is transcribed into a protein?
DNA
Purine
RNA
Pyrimidine
I don’t get this question and answer. Help
Answer:
i think
Explanation:
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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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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________ 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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Bacteriophages and animal viruses do not differ significantly in which one of the following steps?.
Bacteriophages and animal viruses do not differ significantly in the area of biosynthesis.
What is Biosynthesis?
This is referred to an enzyme-catalyzed process where substrates are converted to products in organisms.
It is usually multi-step in which bacteriophages and animal viruses have similar structures hence the reason.
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How does El Nino affect global weather?
OA. Precipitation decreases in South and Central America. Precipitation increases in Africa, Asia, and Australia.
OB. Precipitation decreases in the Western hemisphere and hincreases in the Eastern hemisphere.
OC. Precipitation increases in South and Central America. Precipitation decreases in Africa, Asia, and Australia.
OD. Precipitation increases in the Western hemisphere and decreases in the Eastern hemisphere
El Niño affects global weather because precipitation increases in South and Central America and also decreases in Africa, Asia, and Australia (Option C).
What is 'El Niño'?The 'El Niño' is a climatic phenomenon associated with the formation of violent storms that cause flooded areas in America.
It has been suggested that 'El Niño' may be associated with global warming and increased its activity in the last years.
In conclusion, El Niño increases precipitation in South and Central America and decreases it in Africa, Asia, and Australia (Option C).
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epresents a single pathway through which energy and matter flow _____ 2. feeding positions in a food chain or web _____ 3. the living aspects of the environment _____ 4. the role of a species in its ecosystem _____ 5. consumes the soft tissues of dead animal
2. through an ecosystem
3. trophic levels.
4. biotic factor
5. scavenger
The food chain represents who eats who in the wild. From unicellular algae to giant blue whales, all living things need food to survive. Each food chain is a potential route for energy and nutrients to follow the ecosystem. For example, grass produces its own food from sunlight. Rabbits eat grass. The
food chain is a linear sequence of organisms in which nutrients and energy move from one organism to another. This happens when one organism consumes another. It begins with the producer's airframe, follows the chain, and ends with the decomposer's airframe.
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