Answer:
Durante el invierno las mariposas monarca migran hacia el sur en busca de temperaturas más cálidas, y luego en primavera migran nuevamente hacia latitudes mayores
Explanation:
La mariposa monarca (Danaus plexippus) es un insecto lepidóptero que habita América del Norte, la cual es conocida por llevar a cabo una de las migraciones más extraordinarias observadas en el reino animal. La subespecies de mariposas monarca D. plexippus plexippus es popularmente conocida porque sus poblaciones realizan una migración masiva hacia el sur durante los meses de agosto a octubre (es decir, antes del comienzo del invierno en el hemisferio norte) y, posteriormente, estas poblaciones migran nuevamente hacia el norte en primavera. Recientes estudios han determinado cómo la temperatura induce un cambio de dirección de vuelo (es decir, el patrón de migración) de estas mariposas, lo cual demuestra que los efectos del cambio climático reprentan un grave peligro no sólo para la biodiversidad de Danaus plexippus, sino también para las especies vegetales autóctonas que se benefician de este polinizador natural y, en última instancia también, para toda la cadena trófica que abarca su radio de migración. Es por esta razón que el aumento en las temperaturas medias causado por el calentamiento global ha causado una gran alarma en la comunidad científica sobre sus efectos sobre esta especie.
Out of 10 people infected with the West Nile virus, how many will develop symptoms?
Answer:
8/10 do NOT, so that means 2/10 DO develop symptoms.
Explanation:
pls mark brainliest.
HW HELP Please!!!!!!!!
Explain two things we can learn from fossils. (3 points)
Answer: We can tell how life existed on earth and how different plants and animals are related to each other. Often we can work out how and how and where they lived, and use this information to find out about ancient environments. Fossils can tell us about the past.
Explanation
Genetic abnormalities result in a cluster of distinct characteristics that tend to occur together respective to a given:
Genetic abnormalities result in a cluster of distinct characteristics that tend to occur together respective to a given individual's genetic makeup. Genetic abnormalities are responsible for a wide range of physical and cognitive disabilities.
Genetic abnormalities result from changes in the DNA sequence of an individual that can affect one gene or multiple genes.There are different types of genetic abnormalities, such as chromosomal abnormalities, single gene disorders, and multifactorial disorders. Chromosomal abnormalities occur when the number or structure of chromosomes is changed.
Down syndrome is an example of a chromosomal abnormality.Single gene disorders result from changes or mutations in a single gene. Cystic fibrosis, sickle cell anemia, and Huntington's disease are examples of single gene disorders. Multifactorial disorders occur when a combination of genetic and environmental factors contribute to the development of a disorder. Heart disease, diabetes, and some types of cancer are examples of multifactorial disorders.
Some genetic abnormalities are inherited, while others occur spontaneously due to genetic mutations. Genetic abnormalities can affect any part of the body and result in a wide range of symptoms and disabilities. Treatment for genetic abnormalities is often focused on managing symptoms and improving quality of life for affected individuals. Genetic counseling and testing can help individuals and families understand their risk for genetic abnormalities and make informed decisions about family planning.
In conclusion, genetic abnormalities result in a cluster of distinct characteristics that tend to occur together respective to a given individual's genetic makeup. Genetic abnormalities are responsible for a wide range of physical and cognitive disabilities.
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Describe the role and importance of the cell membrane. What is meant by the cell membrane
is semipermeable?"
Answer:the cell membrane provides protection for a cell
Explanation: that some molecules can diffuse across the lipid bilayer but others no
In a Dihybrid cross, two heterozygous parents, AaBb x AaBb have an offspring. What is the ratio of the offspring??
which of the following types of bacterial cells would have flagella located at only one end of the cell? which of the following types of bacterial cells would have flagella located at only one end of the cell? peritrichous monotrichous and amphitrichous lophotrichous and monotrichous amphitrichous monotrichous lophotrichous
Bacterial cells that would have flagella located at only one end of the cell
is Lophotrichous and monotrichous
What are Bacterial cells?Bacteria, singular bacterium, any of a group of microscopic single-celled organisms that are abundant on Earth and can be found in nearly every environment, from human digestive tracts to deep-sea vents.
Bacteria are classified as prokaryotes, which are unicellular life forms. They lack a membrane-bound nucleus and other internal components. Prokaryotes have dominated life on Earth for at least three-quarters of its existence and have adapted to nearly all of the planet's biological niches. They exhibit incredibly diverse metabolic capacities as a whole and can utilise practically any organic chemical as well as some inorganic compounds as food. While certain bacteria can infect people, animals, or plants with diseases, the majority of them are benign ecological agents
What is flagella in bacterial cell?A microbe may have a single flagellum or several. For instance, the gram-negative bacterium Helicobacter pylori uses its many flagella to break through the mucous membrane and reach the stomach epithelium, where it may lead to the formation of a gastric ulcer. The flagellum of some bacteria can also serve as a sensory organelle, sensitive to moisture outside the cell.
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Consider a diploid organism with a haploid complement of 4 chromosomes in its gametes. At meiotic prophase I, how many total chromosomes copies will be present in a cell?
In a diploid organism with a haploid complement of 4 chromosomes in its gametes, meiotic prophase I will result in a total of 8 chromosome copies in a cell. This is because during meiosis, the cells undergo two rounds of cell division, resulting in four haploid cells with half the number of chromosomes as the parent cell.
During meiotic prophase, I, homologous chromosomes pair up and exchange genetic material in a process called crossing over. This results in the formation of tetrads, which are groups of four chromatids. Each chromatid contains a copy of the same chromosome, so a tetrad contains two copies of each chromosome.
Therefore, at the end of meiotic prophase I, each cell will contain four tetrads, which is a total of eight chromosome copies. These chromosome copies will then separate during the subsequent stages of meiosis, resulting in the formation of four haploid cells, each with a unique combination of genetic material.
Overall, meiosis is a crucial process for generating genetic diversity and ensuring the production of viable gametes in sexually reproducing organisms.
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How does water transfer when it evaporates from the ocean?
Answer:Most of the water that evaporates from the oceans falls back into the oceans as precipitation. Only about 10 percent of the water evaporated from the oceans is transported over land and falls as precipitation. Once evaporated, a water molecule spends about 10 days in the air.
Explanation:
a field containing soil that is 60 percent clay can hold a tremendous amount of nutrients but often has poor crop growth. what is the most likely explanation for this phenomenon? excessive concentrations of nutrients in soil can become toxic to many types of plants. clay can hold heavy metals that are toxic to plants. plant roots have difficulty penetrating a soil that is 60 percent clay. the base saturation of clay soil is too high for most plants.
The physical characteristics of soil can be broken down into twelve categories. Each of these physical characteristics of soil is important to agriculture and improves plant health in general.
One of the heaviest soils is said to be clay. Due to the capillary action between the clay particles, the soil can keep a lot of nutrients and water while draining more slowly. Clay soil has the tiniest particles of any type of soil for plant health.
Clay soil can be recognized rather easily. It may be rolled, smeared easily, and smoothed into a glossy finish. It is sticky when wet. However, clay soil has a propensity to become extremely hard as it dries, which leads to the clay cracking as it dries.
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Matt manages a company that monitors the wastes from a company that produces radioactive byproducts. Matt is most likely a(n) medical doctor. agricultural engineer. archeologist. nuclear scientist.
Answer:
Nuclear Scientist
Explanation:
Answer:
Nuclear Scientist
Explanation:
I did it
an abnormal condition of bone death (due to lack of blood supply) is
The abnormal condition of bone death due to lack of blood supply is called avascular necrosis.
Avascular necrosis is a condition characterized by the death of bone tissue due to a lack of blood supply. It can occur in any bone, but is most commonly seen in the hip joint. Without an adequate blood supply, bone tissue begins to die and can eventually lead to bone collapse and joint damage.
Avascular necrosis may be caused by a number of factors, including injury, prolonged use of corticosteroid medications, excessive alcohol consumption, and certain medical conditions like sickle cell anemia. Treatment options depend on the severity of the condition and may include medication, physical therapy, and surgery, such as joint replacement or bone grafting.
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What process does the grass use to harness this energy? *
T/F In the human heart, the muscular structure of the ventricles enables them to pump blood a greater distance than atria can
True. In the human heart, the muscular structure of the ventricles enables them to pump blood a greater distance than the atria can.
True. In the human heart, the muscular structure of the ventricles enables them to pump blood a greater distance than the atria can. The atria are smaller and have less muscular walls compared to the ventricles that are larger and have more muscular walls. The left ventricle is responsible for pumping oxygenated blood to the rest of the body, while the right ventricle pumps deoxygenated blood to the lungs for oxygenation. The ventricles are chambers that pump blood through the circulatory system. They act as pumps and distribute blood throughout the body. The ventricles, unlike the atria, must have thicker, more muscular walls to produce the necessary force for blood to circulate throughout the body. In summary, the muscular structure of the ventricles in the human heart enables them to pump blood a greater distance than the atria can. The ventricles have thicker, more muscular walls, which helps produce the necessary force for blood to circulate throughout the body.
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What is gained from each part of aerobic respiration?
Answer:
Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. ... This results in a net gain of two ATP molecules. Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.
Hope this helps..what are the limitations of using fossil in evolution theory. Please answer
def need help, science testtt!!
Answer:
it's d
bc it occurs when sedimentation occurs when eroded stuff compact them together
The _____ is used to monitor the centering of the process.
Select one:
a .np-chart
b.-chart
c. R-chart
d. p-chart
The _R-chart_ is used to monitor the centering of the process.The correct answer is c. R-chart.
The R-chart, also known as the Range chart, is used to monitor the centering of the process. It is a statistical control chart that tracks the variability or dispersion within a process by measuring the range between the maximum and minimum values of a sample. The R-chart is commonly used in conjunction with the X-bar chart (also known as the process mean chart) to monitor process performance. While the X-bar chart focuses on the central tendency or average of the process, the R-chart helps assess the spread or variability of the process.
By plotting the ranges of multiple samples on the R-chart, one can determine if the process is exhibiting consistent variation or if there are shifts or changes in the dispersion. If the ranges remain within control limits, it indicates that the process is in statistical control and the centering is stable. However, if there are points that fall outside the control limits or a systematic pattern emerges, it suggests that the process variation has changed, and further investigation or corrective actions may be necessary. Overall, the R-chart is a valuable tool for monitoring the centering of a process by assessing the variability or dispersion within the process over time.
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4.
Which of the following correctly lists the levels in an ecosystem from largest to smallest?
A. ecosystem, community, population
B. community, ecosystem, population
C. population, ecosystem, community
D. ecosystem, population, community
Answer:
A. ecosystem, community, population
An ecosystem can support more _______________ than _____________. a. producers, autotrophs b. producers, consumers c. carnivores, herbivores d. consumers, producers
Producers fulfil the food demands of all the organisms in an ecosystem. Thus, option B is correct.
What is an ecosystem?An ecosystem consists of an interaction between the biotic and abiotic components in an environment.
All the living organism form the biotic community while the abiotic community include air, water, soil, temperature in an ecosystem.
Different ecosystems exists on earth. Eg. Forest ecosystem, marine ecosystem, desert ecosystem etc.
Ecosystems can also be classified as natural and manmade ecosystems. Aquarium, zoos, poultry farms are some of the examples of manmade ecosystem.
Ecosystem supports life an organisms by various food chains and food webs.
Ecosystem offers aesthetic appeal as well as regulate climatic factors in an environment.
Ecosystem is also important for pollination. It also helps in soil formation.
Therefore, ecosystems are important in the cycling of nutrients and energy flow in a biological system.
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Decreased levels of bile salts in the bile would interfere with:
a. protein digestion.
b. fat digestion.
c. digestion of disaccharides.
d. digestion of complex carbohydrates.
e. digestion of vitamins.
Bile salts are a critical component of bile, which is produced by the liver and stored in the gallbladder. The correct answer is B. Fat digestion.
When food containing fat enters the small intestine, the gallbladder releases bile into the duodenum. Bile salts within the bile help to break down the large fat droplets into smaller droplets, increasing their surface area and allowing pancreatic lipase to more effectively break them down into fatty acids and glycerol.
If there are decreased levels of bile salts in the bile, it would interfere with fat digestion, as the bile would not be as effective at emulsifying the fats. This could lead to malabsorption of fats, which can cause a variety of symptoms including diarrhea, bloating, and weight loss. Additionally, decreased bile salt levels could also affect the absorption of fat-soluble vitamins, such as vitamins A, D, E, and K, which are necessary for a range of functions in the body.
Decreased bile salt levels would not have a significant impact on protein digestion, digestion of disaccharides, or digestion of complex carbohydrates, as these processes do not rely on bile salts for their effectiveness. However, the role of bile salts in fat digestion is critical, and any decrease in their levels could have significant consequences for overall digestive health.
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What are the two infinite measures in science?
Infinity, the concept of something that is unlimited, endless, without bound. ... Spatial and temporal concepts of infinity occur in physics when one asks if there are infinitely many stars or if the universe will last forever.
select the correct answer from each drop down menu
complete the sentence about sea floor spreading
seafloor spreading is caused by ___ (divergent, convergent, transform) boundaries and results in ___ (more continental land, mountains on land, mid ocean ridges)
Answer:
divergent,mid ocean ridges
Explanation:
the seafloor diverge from each other causing the land to go thinner and thinner and thinner and make an opening between the floors and continue to move away from each other until they touch a more firm land to be able to stop, then the mid ocean ridges come between the floors where inside there is water and on the side there are the ridges
You have a houseplant known as a spiderplant, it produces a plantlet. what can you do with the plantlet when it falls off?
what rbc morphology on a wright-stained smear may indicate the presence of an unstable hemoglobin?
The presence of unstable hemoglobin on a Wright-stained smear may be indicated by the presence of Schistocytes.
A Wright-stained smear is a laboratory technique used to visualize different types of blood cells under a microscope. It uses a combination of eosin and methylene blue dyes that bind to different components of the cells, allowing for the identification of different types of white blood cells, red blood cells, and platelets.
Schistocytes are fragmented red blood cells (RBCs) that appear as small, irregularly-shaped cells on a blood smear. They are typically seen in conditions such as hemolytic anemia, disseminated intravascular coagulation (DIC), and mechanical hemolysis (e.g., from a mechanical heart valve).
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What are three ways for materials to move in and out of cells
Explanation:
diffusion, osmosis and active transport
voluntary skeletal muscles are moved by what part of the nervous system?
Voluntary skeletal muscles are moved by the somatic nervous system.
The somatic nervous system is a component of the peripheral nervous system which is associated with the voluntary control of the body movements via the use of the skeletal muscles.
Somatic nervous system consists of a sensory nerves carrying afferent nerve fibers, which relay sensation from the body to the central nervous system (CNS), and the motor nerves will carrying efferent nerve fibers, which relay motor commands from the CNS to stimulate the muscle contraction.
It consists of the two parts: Spinal nerves and Cranial nerves.
Spinal nerves are the mixed nerves that carry sensory information into and motor commands out of the spinal cord.
Cranial nerves are the nerve fibers which carry information into and out of the brain stem. They include smell, mouth, taste, eye muscles, ear, neck, shoulders, and tongue.
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which of the following cell types would have full complementary number of chromosomes?
a. haploid cell
b.somatic cell
c.gamete
d. sperm
Which of the following is not an effector?
A. Skin B. Tongue C. Inner ear D. Diaphragm
Answer:
It should be C. inner ear
Explanation:
according to the web
help.
A person pushes a giant boulder with a force of 50N for 10min. The boulder moves 0cm. Use what you know about force, work, and acceleration to explain what happened.
Question 33 options:
500J of work was done because the person pushed for 10 min
The boulder moved 10m because the person pushed for 10 min
The person did a lot of work because s/he pushed with a high force
No work was done because the boulder was not displaced
Answer:
No work was done because the boulder was not displaced.
Explanation:
Even if a person is pushing with a force of 50N and for 10 min, zero work is done and there's no acceleration. Zero work means when the force or displacement on the object is equal to 0 J, and since the boulder never moved it would be 0 J. If the person was pushing with 50 N or even higher and the the object didn't budge, the velocity hasn't changed from rest and that would mean no acceleration occurred.