why is it beneficial for female peacocks to choose to mate with a male peacock with a full colorful trains?
URGENT
Answers
Answer:
Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.
Related Questions
Describe the structure of large bones.
Answers
Answer:
Periosteum, Compact Bone, Spongy Bone, Bone Marrow, Articular Cartilage, Medullary Cavity
Explanation:
Periosteum: The outermost layer of a bone is called the periosteum. It is a tough, fibrous membrane that covers the bone's surface. The periosteum contains blood vessels, nerves, and connective tissue that nourish and support the bone.
Compact Bone: Beneath the periosteum lies a layer of compact bone, also known as cortical bone. Compact bone is dense and hard. It forms the main shaft or diaphysis of the long bone. Its structure consists of multiple layers of tightly packed mineralized matrix called lamellae, which contain collagen fibers. Compact bone provides strength and protection to the bone.
Spongy Bone: The interior of the bone, particularly at the ends and in the middle of long bones, contains spongy bone, also called cancellous or trabecular bone. Spongy bone has a porous, lattice-like structure composed of thin, branching bony plates called trabeculae. The spaces between the trabeculae are filled with bone marrow. Spongy bone helps reduce the weight of the bone while providing support and flexibility.
Bone Marrow: Within the spaces of spongy bone is bone marrow. There are two types of bone marrow: red marrow and yellow marrow. Red marrow is responsible for producing blood cells, including red blood cells, white blood cells, and platelets. Yellow marrow consists mainly of fat cells and serves as a storage site for adipose tissue.
Articular Cartilage: At the ends of long bones, where they articulate with other bones in joints, there is a layer of smooth, slippery cartilage called articular cartilage. It helps reduce friction and absorbs shock during movement, facilitating smooth joint motion.
Medullary Cavity: Within the diaphysis or shaft of the long bone, there is a hollow space called the medullary cavity. The medullary cavity contains bone marrow and serves as a storage site for yellow marrow.
the salivary glands under the tongue are described as
Answers
Answer:
A tissue in our mouth that produces saliva to help swallow food! :)
What is an ecological footprint and how is it calculated?
Answers
The Ecological Footprint is a combination of all the things we do that require us to draw on natural resources. It includes the impact on our homes (e.g. the oil, gas, and electricity we use), transport (e.g. car, train, and plane trips), food (e.g. land under cultivation and fertilizers), and consumer goods (e.g. fossil fuel energy used to make and transport goods).
Calculation:
Ecological footprints are measured in global hectares (gha) – the amount of bio-productive land and sea available on the planet. We can calculate our footprint by adding up the hectares it takes to grow our food and farm the animals we eat, the hectares our house stands on; the hectares that oil refineries and other energy infrastructure we depend on take up, and the hectares of forest that would be needed to absorb the CO2 emitted by our fuels; a share of the hectares taken up by our roads; and everything else we do that has an impact on the planet’s ecology.
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this answer i need pls ill mark brainliest
Answers
All - growth, exchange of gases, excretion, reproduction, and death (option d).
All living organisms undergo various life processes to maintain their existence. Let's analyze each option to determine which life processes are carried out by an organism's cells:
A. Only growth and exchange of gases: While cells are involved in growth and exchange of gases, they also participate in other life processes. This option is incomplete.
B. Only growth, exchange of gases, and reproduction: Cells play a crucial role in reproduction as they are responsible for the production of gametes and the process of cell division. However, there are additional life processes that cells also undertake.
C. Only growth, exchange of gases, excretion, and reproduction: This option includes excretion in addition to growth, exchange of gases, and reproduction. Cells participate in excretion by eliminating waste materials. However, there is one more life process that cells experience.
D. All - growth, exchange of gases, excretion, reproduction, and death: This option encompasses all the mentioned life processes. Cells are involved in growth as they undergo cell division and increase in number. They exchange gases through processes like respiration. Cells excrete waste products. They participate in reproduction through the formation of gametes and cell division. Lastly, cells also experience death as they have a limited lifespan.
Therefore, the correct answer is D. All - growth, exchange of gases, excretion, reproduction, and death.
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El grafico muestra la estructura del átomo de
Flúor, su configuración electrónica es 1s2 2s2 2p5
Answers
Answer:
Comprobar explicación.
Explanation:
La pregunta parece estar incompleta. El gráfico descrito no se adjunta a esta pregunta.
Pero, he seguido dibujando cómo se ve la capa del átomo de Flourine con la configuración electrónica 2, 7 y agregué la configuración / distribución spdf de los electrones de Flúor también.
Esto se presenta en la imagen adjunta a esta pregunta.
¡¡¡Espero que esto ayude!!!
Evaluate three ways in which conflict can help to build positive relationship between youth and their parents
Answers
Answer:
Conflict can help to build a positive relationship between parents and youth due to the fact that conflict can lead to communication. When conflict arrives you need active listening, communication, and responsibility to approach any issue that may occur.
Explanation:
The organs in the human body perform specific functions for survival.
Organ A delivers blood to the body
Organ B delivers oxygen to the body
Organ C delivers messages to the body
Which of the following correctly identifies the organs that perform each function above?
Organ A is the heart, Organ B is the brain, and Organ C is the lungs
Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Organ A is the lungs, Organ B is the brain, and Organ C is the heart
Organ A is the lungs, Organ B is the heart, and Organ C is the brain
Answers
Organ A is the heart
Organ B is the lungs
Organ C is the brain
Because heart only delivers blood to lungs and other body tissues, Lungs input oxygen into the blood and brain sends signals and messages to the body parts.
This is the answer. Hope it helps you
Answer:
B) Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Explanation:
the most common complaint during coronary artery balloon catheterization is: a. chest pain. b. diarrhea. c. headache. d. leg cramping.
Answers
The most common complaint during coronary artery balloon catheterization is **a. chest pain**.
During coronary artery balloon catheterization, a catheter with a deflated balloon at its tip is inserted into a coronary artery to open a blockage and improve blood flow to the heart muscle. This procedure is commonly used in the treatment of coronary artery disease. Chest pain, also known as angina, is the most common complaint reported during the procedure. This chest pain can occur due to temporary blockage of blood flow during the inflation of the balloon or the release of chemicals that cause discomfort in the coronary arteries. The chest pain is typically monitored and managed by the medical team performing the procedure to ensure the patient's safety and well-being.
While other symptoms like headache, leg cramping, or even rare instances of diarrhea may occur during the procedure, chest pain is the most common complaint associated with coronary artery balloon catheterization.
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Which material moves into a plant through an open stoma?
A. Oxygen
B. Carbon dioxide
C. Carbohydrates
D. Water vapor
Answers
Answer:
cardon dioxide
Explanation:
opens up to breath carbon dioxide. releases oxygen for humans to breath. it absorbs water from the roots.
Answer:
B my guy
Explanation:
Stoma control the flow of gases in and out of leaves. During the day, when air temperatures rise and carbon dioxide levels are normal or above normal, the stomata open, allowing carbon dioxide to enter and photosynthesis to take place.
13. The brain signals the body of an arimal to move by transmittieg electrical impulses through the neurons. An crimal is then able to walk or run because
Answers
By sending electrical impulses through neurons, the brain signals the body to move, activating the muscles that are responsible for movement.
The electrical impulses that travel between brain neurons are referred to as brain signals. For the brain to regulate and synchronise the body's movements, thoughts, and emotions, these messages are necessary. There are billions of neurons in the brain, and they all communicate with one another via a sophisticated network of synapses. A neuron sends off an electrical impulse that travels down its axon and causes the release of neurotransmitters when it receives a signal from another neuron. A new electrical impulse is then started when these neurotransmitters bind to receptors on the surface of additional neurons. The brain is able to regulate all facets of the body's behaviour and function, from simple physical movements to intricate cognitive functions, by sending and receiving these signals.
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X-gal is included in the growth medium on which cells transformed with bacterial plasmids are grown. The reason x-gal is included is to _______.
Answers
Identify bacteria that contain a recombinant plasmid
Ampicillin is an antibiotic that stops E. coli from building cell walls, killing the bacteria in the process. The presence of the ampicillin-resistance gene causes the development of an enzyme that prevents the action of ampicillin, allowing the bacteria to survive
What is Plasmid DNA ?Bacteria and certain other microscopic species contain plasmids, which are tiny circular DNA molecules. Physically distinct from chromosomal DNA, plasmids multiply on their own.
Only a small number of genes are carried by plasmids, which are separate from chromosomes, the main cell structures that house DNA. Plasmids can be taken up from the environment and passed between bacteria since they have the ability to self-replicate. The host organism makes use of plasmids to deal with situations brought on by stress.Learn more about Plasmid DNA here:
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Microfilaments, intermediate filaments, and microtubules comprise the ______, which is a network of proteins that provide a structural framework within the cell.
Answers
Microfilaments, intermediate filaments, and microtubules comprise the Cytoskeleton, which is a network of proteins that provide a structural framework within the cell.
Microfilaments, intermediate filaments, and microtubules are components of what organelle?
The cytoskeleton is a group of organelles that includes intermediate filaments, microfilaments, and microtubules. The cytoskeleton is the cell's scaffolding and the primary structural supporter. The greatest component of the cytoskeleton are microtubules.Microtubules are the building blocks of cilia and flagella, and they also help the cell withstand compression and act as a pathway for vesicles to migrate throughout the cell. An extended family of related proteins that have similar structure and sequence characteristics make up intermediate filaments.Learn more about the Cytoskeleton with the help of the given link:
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Cellulose is an especially strong polymer that is difficult to digest because __________. (Check all that apply.)
its long, branched chains make it insoluble
β 1→4 linkages of glucose monomers produce very strong chainsβ 1→4 linkages of glucose monomers produce very strong chains
α 1→4 linkages of glucose monomers produce very strong chainsα 1→4 linkages of glucose monomers produce very strong chains
its long, unbranched chains form tough fibers
its fructose monomers form very strong bonds
Answers
Cellulose is an especially strong polymer that is difficult to digest because β 1→4 linkages of glucose monomers produce very strong chainsβ 1→4 linkages of glucose monomers produce very strong chains.
What is cellulose?Cellulose is a biopolymer composed of glucose molecules linked by β 1→4 glycosidic bonds. It is a biomolecule synthesized by plants, but animals do not have the enzymatic material to be able to digest this molecule, neither do human beings.
Therefore, we can confirm that cellulose is an especially strong polymer that is difficult to digest because β 1→4 linkages of glucose monomers produce very strong chainsβ 1→4 linkages of glucose monomers produce very strong chains.
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1. The psychological definition of consciousness involves
a. any state that diles not involve unconsciousness.
b. ultradian and infradian rhythms
a waking state in which we are aware of most sensations.
d. awareness of our inner and outer experience
Answers
Answer:
your answer is either C or D but it is most likely d
Which organisms undergo photosynthesis?
Answers
Answer:plants, algae and a group of bacteria called Cyanobacteria
Explanation:
Answer:
B, C, and E ( The fruit, plant, and tree )
Explanation:
I searched it up and everything except for mushrooms and starfish use photosynthesis.
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~ explain the changes in kinetic energy and potential energy that occur when an apple falls off the table and hits the floor
Answers
Answer:
When an apple falls from the tree to the ground, its energy of position (stored as gravitational potential energy) is converted to kinetic energy, the energy of motion, as it falls. When the apple hits the ground, kinetic energy is transformed into heat energy.
Explanation:
Identify three anatomical differences that distinguish the sympathetic division from parasympathetic division.
Answers
Sure! Here are three anatomical differences that distinguish the sympathetic division from parasympathetic division:
1. Location of Ganglia: Sympathetic ganglia are located near the spinal cord, while parasympathetic ganglia are located near or within the organs they innervate.
2. Length of Preganglionic Neurons: Sympathetic preganglionic neurons are shorter in length compared to parasympathetic preganglionic neurons, which are longer.
3. Neurotransmitter Release: The sympathetic division releases norepinephrine as its primary neurotransmitter, while the parasympathetic division releases acetylcholine as its primary neurotransmitter.
The three anatomical differences between the sympathetic and parasympathetic divisions of the autonomic nervous system are: origin of nerve fibers, ganglia location, and length of nerve fibers.
The sympathetic division and parasympathetic division are two branches of the autonomic nervous system that regulate involuntary bodily functions. The sympathetic division is responsible for the "fight or flight" response, while the parasympathetic division is responsible for the "rest and digest" response.
Here are three anatomical differences that distinguish the two divisions:1. Origin of nerve fibers: Sympathetic fibers originate from the thoracolumbar region of the spinal cord, while parasympathetic fibers originate from the craniosacral region, specifically the brainstem and sacral spinal cord segments.
2. Ganglia location: Sympathetic ganglia are located close to the spinal cord in a chain-like structure called the sympathetic chain or paravertebral ganglia. Parasympathetic ganglia, on the other hand, are located near or within the target organs and are called terminal or intramural ganglia.
3. Length of nerve fibers: In the sympathetic division, the preganglionic fibers are generally short, and the postganglionic fibers are long. In contrast, the parasympathetic division has long preganglionic fibers and short postganglionic fibers.
These anatomical differences contribute to the distinct functions and responses of the sympathetic and parasympathetic divisions in regulating the body's involuntary processes.
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5. Why would a microbe evolve the ability to be motile? Why would a microbe evolve to permanently lose the ability to be motile? 6. What does it mean about the food available in its natural environment if a microbe evolved the ability to secrete amylase in its natural habitat? 7. What does it mean about the food available in its natural environment if a microbe evolved the ability to survive on citrate as a sole carbon source?
Answers
Microbes can evolve in response to a variety of selection pressures, such as changes in temperature, pH, salinity, nutrient availability, and predation. In response to these pressures, microbes can acquire new genes or modify existing ones through various mechanisms to develop different abilities.
5. A microbe may evolve the ability to be motile as a way to move towards nutrients or away from toxins in its environment. This can give it an advantage in finding resources and avoiding harmful substances.
On the other hand, a microbe may evolve to permanently lose its motility if it becomes more efficient to stay in one location and rely on other means of obtaining nutrients, such as through symbiosis or absorption.
6. If a microbe evolved the ability to secrete amylase in its natural habitat, it suggests that there is a significant amount of complex carbohydrates present in the environment.
Amylase is an enzyme that breaks down complex carbohydrates into simpler sugars that the microbe can then use as a source of energy. Therefore, the evolution of this ability indicates that the microbe has adapted to survive on a diet that is rich in complex carbohydrates.
7. If a microbe evolved the ability to survive on citrate as a sole carbon source, it suggests that there is limited availability of other carbon sources in its natural environment.
Citrate is a molecule that can be broken down into simpler compounds that the microbe can use as a source of carbon, which is essential for its growth and survival. Therefore, the evolution of this ability indicates that the microbe has adapted to survive in an environment where there is a scarcity of other carbon sources.
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Did humans cause the drought in São Paulo?
Answers
Answer:
São Paulo is a city in Brazil that faced the worst drought in Brazil in the last 100 years between 2014–17.
The reason of the drought was diminished rain falls from last three third consecutive year in the region. Humans were somewhere responsible for the drought and less rainfall because this was caused by expansion of deforestation into the Amazon basin. Deforestation disturbed the environmental cycle that caused less amount of rain in São Paulo, Brazil.
in many patients, high-risk strains of hpv integrate themselves into the host's genome yet cause no symptoms for many years, making detection difficult. this period is most similar to which viral phenomenon?
Answers
The period where high-risk strains of HPV integrate themselves into the host's genome without causing any symptoms for many years is most similar to the latent phase of viral infections.
During this phase, the virus is present in the host's body but does not cause any symptoms or active viral replication. This makes detection of the virus difficult, as it may not be detectable through traditional diagnostic tests. The latency period is a common feature of many viral infections, including herpes simplex virus and HIV.
In the case of HPV, integration of the viral DNA into the host's genome increases the risk of cellular changes that can lead to cancer. Detecting and treating HPV infections early is critical to preventing the development of cancer.
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how long does it take for a fertilised human egg cell to develop into a fully formed baby?
Answers
Answer:40 weeks
Explanation:
Within 24 hours of fertilization, the zygote (two combined gametes) begins to divide into many cells. Within 8 weeks of pregnancy, the embryo is now a fetus, and the total development time from a zygote to a fully formed fetus is 40 weeks, typically.
Beneficial micro-organisms that are responsible for breaking down organic matter are called?.
Answers
Some examples are fungi,bacteria and protozoa.
What is the difference between cowpea and beans
Answers
Answer:
a pea has a hollowed our stem and a bean has a solid stem
BEBE
Answer the lab question, "What is the effect of the
inheritance of one trait on the inheritance of a
second trait?" with a hypothesis. Remember that
you can either assume that the two genes are
independent or that they are linked. What results
would you expect in either case?
Hypothesis:
DONE
Answers
Answer:
Hypothesis: An inherited characteristic is not able to interfere in the inheritance of another characteristic in the same organism.
Explanation:
An inherited feature does not interfere with another inherited feature. This is because the genes are inherited by joining the gametes, which contain the genes of the organism's parents. Each gene is distributed in gametes completely randomly and independently. Inheritable characteristics are represented by these genes. In this way, genes are inherited independently, they do not interfere with inheritable characteristics. However, in genes inherited together, we can consider that only one inheritable trait would be presented, since these genes would interfere in the construction of another trait. This can be studied through hybrid crossings in living beings.
In a P generation of true-breeding tall plants that are crossed with true-breeding short plants, 100% of the F1 generation are tall. What does this suggest about short and tall alleles
Answers
If in a P generation of true-breeding tall plants that are crossed with true-breeding short plants, 100% of the F1 generation are tall, then this suggest that short is recessive while tall is dominant.
What are recessive and dominant alleles for a given phenotypic trait?Recessive and dominant alleles for a given phenotypic trait are those that are masked or masked respectively the expression of the feature.
Therefore, with this data, we can see that dominant alleles are able to mask a particular feature in heterozygous individuals as obtained after a line pure cross.
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An experiment that has only one variable changed
Answers
The highlighted vessels are ________ blood to the heart. The highlighted vessels are ________ blood to the heart. arteries that carry deoxygenated veins that carry oxygenated arteries that carry oxygenated veins that carry deoxygenated
Answers
In the circulatory system, arteries take blood from the heart, and veins carry it to the heart. B) The highlighted vessels are veins that carry oxygenated blood to the heart.
What is the circulatory system?The circulatory system is a mechanism that, together with the respiratory system, provides oxygen to the organism and removes carbon dioxide.
The circulatory system is in charge of driving oxygen to all the tissues and cells in the body and taking away carbon dioxide from them.
These gases are in the oxygenated and deoxygenated blood, respectively.
The heart bombs blood through arteries
The oxygenated blood moves forward all tissues and cellsDeoxygenated blood goes to the lungs ⇒ pulmonary artery
This organ also receives blood through veins,
Oxygenated blood enters from the lungs ⇒ pulmonary veinDeoxygenated blood comes from other tissues
So the heart sends blood through arteries and receives blood through veins. Depending on the destiny and origin of this blood, it is oxygenated or deoxygenated.
There are two principal types of circulation,
Lung circulation
1. Moves blood between the heart and the lungs.
2. Deoxygenated blood goes from the heart to the lungs (pulmonary artery)
3. In the lungs, deoxygenated blood releases carbon dioxide and gets oxygenated again.
4. Carbon dioxide is released by exhalation.
5. Blood absorbs oxygen from small air sacs named alveoli.
6. Oxygenated blood returns to the heart (pulmonary vein).
Systemic circulation
1. Carries blood between the heart and the rest of the body.
2. Oxygenated blood leaves the heart and moves to all the cells in the body (arteries).
3. Deoxygenated blood returns from tissues to the heart (veins).
From the image,
The highlighted vessels are closely related to the lungs. So, according to their position and diametre, we can assume these are either pulmonary veins or arteries.If we consider the statement says that the highlighted vessels move blood TO the heart, we can assume we are talking about veins.
The only veins that move from the lungs to the heart carry oxygenated blood.
According to this reasoning, option B is correct.
The highlighted vessels are veins that carry oxygenated blood to the heart.
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What is it called when dna copies itself
Answers
replication :)
Good luck :D
Answer:
DNA replication
Explanation:
DNA replication occurs when a molecule of DNA is duplicated. When a cell divides, it must first duplicate its genome.
how does the kidney regulate blood pH
Answers
66
In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are located on chromosome 2 and are separated by the following map distances:
whd ----------(30.5)----------sm-----(15.5)-----sp
A female with withered wings and a smooth abdomen was mated to a male with a speck body.
The resulting phenotypically wild-type females were mated with males that had the mutant phenotype for all three traits, producing 2000 offspring.
Question: Assume that interference for these genes is 0.3. Calculate the number of observed double crossover progeny. Enter your answer as a whole number, rounded to the nearest integer
Answers
Assuming that the interference for these genes is 0.3 We anticipate 94 double crossover offspring from this cross.
When two genes are linked, which means they are on the same chromosome, the frequency of crossover offspring seen is proportional to the distance between them, with 1% recombinant offspring being equal to 1 map unit (mU) or 1 centiMorgan (cM) of distance.
The map of these three genes shows that the distance between genes whd and sm is 30.5 mU, while the distance between sm and sp is 15.5 mU. Based on this, the probability of a crossover between genes whd and sm is 0.305, or 30.5%, while the probability of a crossover between sm and sp is 0.155, or 15.5%. To calculate the expected number of double crossover offspring from these three genes, we must first calculate the probability of this event occurring. This compound probability is calculated by multiplying the individual probabilities of each crossover occurring together, yielding the probability of both occurring simultaneously as follows:
P(whd/sm ∩ sm/sp) = P(whd/sm) × P(sm/sp)
P(whd/sm ∩ sm/sp) = 0.305 x 0.155
P(whd/sm ∩ sm/sp) = 0.047
Now that we know the probability of a double crossover event is 0.047, we can multiply it by the total number of offspring given for this cross, 2000, to calculate the expected number of double crossover offspring.
N=0.047 × 2000 = 94
As a result, we anticipate 94 double crossover offspring from this cross.
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