Answer:
During geomagnetic storms, the ionosphere gets altered and it resulted in the distraction of the high-frequency radio communications and navigation.
Explanation:
A geomagnetic storm also popularly known by the term a solar storm refers to a transient disruption of the magnetosphere of the earth prompt by a solar wind shock wave that strikes with the magnetic field of the earth. On the surface of the Earth, a magnetic storm is characterized by a sudden decrease in the power of the Earth's magnetic field. The decline spans range about six to twelve hours and following it the magnetic field starts to restore to normal in a few days. It affects the global position system thus disrupting the communication on Earth.
Why has society changed its view on smoking since 1960
Answer:
Ever since scientists discovered that smoking is bad for the lungs and the body in general, over time there became less and less people who do it. Even though the scientists are right, people still make the wrong choice and start smoking. Most people agree on the fact that smoking is bad for your health.
Which describes one characteristic of both El Niño and La Niña?
Both are causes of long-term climate change.
Both create warmer water.
Both occur in the Pacific Ocean.
Both are causes of hurricane activity.
Answer:
Both occur in the Pacific Ocean.
Explanation:
El Niño and La Niña are opposite phases of a natural climate pattern across the tropical Pacific Ocean that swings back and forth every 3-7 years on average
Answer:c
Explanation:
Earth's magnetic field is created by the bar magnets reaction forces gravitational forces flow of electric charges
Answer:
The correct option is;
Flow of electric charges
Explanation:
The movement of the enormous quantities of molten metals in the Earth's outer core generates electric current which travel several thousands of miles per hour due to the axial rotation of the Earth results in the metallic particles being lined up and generating very strong magnetic fields (due to dynamo effect) that extends all over the planet and into space.
Answer:
D. flow of electric charges
Explanation:
Question 1 of 10
10 Points
You are working to catalogue some of the species in the Amazon rainforest
before they become extinct from logging. You collect 3 organisms that all look
similar to the Coral snake and do a phylogenetic analysis on them before
classifying and naming them. The Coral snakes DNA barcode is
ATTCGCGATAC. Compare it to each sample organism's DNA barcode to
determine how related they are to the Coral Snake, from closest to furthest.
Organism 1: ATTGGCCATAC
Organism 2: ATCCGGGATAG
Organism 3: ATTCGCCATAC
Answer:
The organism closest to the coral snake is organism 3, followed by organism 1 and finally organism 2.
Explanation:
The more similar the DNA composition of the organisms, the closer and more closely related they are. With that we can say that the coral snake is closer to organism 3, since the sequence of nitrogenous bases in its DNA is more similar, in relation to other organisms. After organism 3, it is organism 1 that most resembles a coral snake. Organism 2, however, has a different DNA composition, the organism being less similar and the more distant from the coral snake.
How does the structure of the skull help prevent injury to the brain?
Answer:
There are three layers of tissue that covers and protects the brain and it's spinal cord between the brain and the skull. The skull is a hard protective bone to keep the shape of the head and protect the brain.
Explanation:
Hope this helped and good luck! :)
Answer: Cranium
Explanation: Cranium is made of several bones that creates the "brain case."
Which piece of evidence would strongly support the RNA-first hypothesis? finding a protocell that could carry on metabolism as well as reproduce discovering a way to make RNA more stable than DNA finding a mechanism whereby proteins could assemble DNA out of free nucleotides being able to build microspheres that contain only protein and RNA finding a living organism that uses RNA as its genetic material
Answer:
The correct answer is - finding a living organism that uses RNA as its genetic material.
Explanation:
The RNA world theory recommends that life on Earth started with a simpler form of RNA particle that could duplicate itself. The RNA world speculation recommends that life on Earth started with a basic RNA particle that could duplicate itself without assistance from different atoms.
The RNA world theory is upheld by RNA's capacity to store, transmit, and copy hereditary data, as DNA does. RNA can go about as a ribozyme, an uncommon kind of enzyme. Since it can play out the role of both DNA and enzyme, RNA is accepted to have once been equipped for supporting free living things.
According to the hypothesis is that RNA, a nearby relative of DNA, was the main hereditary atom to emerge around 4 billion years back, however in a simpler form of life that later developed into the RNA and DNA particles that we have in life today
Thus, The correct answer is - finding a living organism that uses RNA as its genetic material
Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or paracrines that are released directly into the lamina propria. Which of the following cell types synthesize and secrete these products?
a) parietal cells
b) enteroendocrine cells
c) mucous neck cells
d) zymogenic cells
Answer:
The correct answer is option b, that is, enteroendocrine cells.
Explanation:
The specialized cells of the pancreas and the gastrointestinal tract exhibiting endocrine function are termed as enteroendocrine cells. These cells generate gastrointestinal peptides or hormones in response to a distinct kind of stimuli and discharge them into the bloodstream for the systemic effect. These are the most varied endocrine cells found within the body.
The intestinal enteroendocrine cells produce somatostatin, cholecystokinin, motilin, enteroglucagon, and neurotensin hormones. The G cells present within the intestine produce gastrin. In the gastric glands, the gastric enteroendocrine cells are present, which produce histamine, and others like cholecystokinin, alpha and gamma-endorphin, somatostatin, and others.
In the islets of Langerhans, the pancreatic enteroendocrine cells are present, which produce hormones like ghrelin, amylin, somatostatin, and pancreatic polypeptide.
Which type of mutation occurs only in gametes? pick one only THANK YOU :D
A.germline mutation
B.somatic mutation
C.point mutation
D.frameshift mutation
How is cancer related to cell division
Answer:cell division is how cancer spread in the body
Explanation: Cancer cells are mutated and overtake good cells
the main and most important product to be used in photosynthesis produced by the light reaction is...
a) ATP and NADH
b) Oxygen
c) Water
d) Glucose
why Reproduction is necessary for the survival of a species on this earth?
Answer:
Reproduction is vital to the success of a species. For a species to survive it must be able to produce more offspring than it loses though old age, disease, and predation.
Explanation:
Living things can reproduce in different ways – asexual reproduction and sexual reproduction.
Hope it helps.
How does cross pollination differ from self pollination?
Answer:
Cross pollination:
the transfer of pollen grain from anther to stigma that takes place between two different flowers of the same species.
Self pollination:
the transfer of pollen grain from anther to stigma that takes place at a single flower.
Hope this helps ;) ❤❤❤
Answer:
It assures that there is genetic variety within each plant species.
Explanation:
Which of the following macromolecules is matched with its correct role in the cell?
Choose ONE answer:
A. Carbohydrates — key component of the cell membrane (lipid bilayer)
B. Lipid — chemical messenger
C. Lipid — storage of short-term energy
D. Nucleic acid — chemical messenger
Tan mice lived in regions with sandy hills. Over time, many of these tan mice migrated to a region with dark-colored hills. Eventually, the mice developed certain mutations in the trait for hair color, which made them black. Which three statements can you make about these mice?
Black mice can camouflage easily, which provides protection.
The mutations for black hair will be inherited through natural selection.
The population of tan mice will increase in the dark-colored hills over time.
Black mice will have a better chance of successfully reaching reproductive age.
Both mice will have an equal chance of successfully reaching reproductive age.
Answer:
1. Black mice can camouflage easily, which provides protection.
2. The mutations for black hair will be inherited through natural selection.
4. Black mice will have a better chance of successfully reaching reproductive age.
Explanation:
Contour plowing occurs when:
farmers plow fields in horizontal rows
farmers stop plowing fields
farmers plow fields around hills
farmers plow fields around brooks and steams
Answer:
farmers plow fields around hills.
Explanation:
Hope it helps.
Answer:
farmers plow fields around hills
Explanation:
please help me with this question, its overdue.
In this question you will be assessed on using good English, organising information
clearly and using specialist terms where appropriate.
The diagram shows part of the carbon cycle. (sorry I cant add it but it includes carbon dioxide in the atmosphere, green plants, animals and microorganisms)
Describe how living things are involved in the constant cycling of carbon.
Answer:Most living things breathe out carbon dioxide(Co2)
Explanation:
Most living organisms need oxygen to survive(Animals and microorganisms).They therefore breathe in oxygen and breathe out carbon dioxide save for green plants which give out oxygen and take in carbon dioxide.
Animals and plants exchange oxygen for carbon dioxide and vice verca
Hereby involving living things in the constant cycling of carbon dioxide in the atmosphere.
2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.
Answer:
Challenge : Competition form other species.
Success : Adaptation and colonisation.
Explanation:
Challenges like adapting to the new environment and different climatic zones and handle other potential threats like predators as snakes, birds, and others. Their potential to find food and sustain themselves will be a challenge. Success factors include their ability to adapt and develop a sense of the different environment and through genetic mutation and natural selection they can develop and grow in numbers.A. ¿Por qué el ciclo del agua es un ciclo geofisico? b. ¿Qué rol cumple el agua en los seres vivos? c. Relacione el proceso de fotosíntesis y respiración con los ciclos del oxígeno, carbono y del agua d. ¿Cómo influye el carbono en las cadenas tróficas? e. ¿Cómo influye el bióxido de carbono en el calentamiento global? f. ¿En qué proceso vegetal el carbono es fijado? g. ¿Qué estado físico tiene el nitrógeno en forma libre? h. ¿En qué biomoléculas encontramos nitrógeno? i. Las actividades biológicas fundamentales en el ciclo del nitrógeno comprenden la fijación de nitrógeno, la amonificación, la nitrificación y la desnitrificación y la asimilación. Explica e que consisten los procesos subrayados. J. En que consiste la eutrofización del agua y qué consecuencias tiene para los ecosistemas
Answer:
a- Es una molécula que pasa por los diferentes estados físicos durante el ciclo del agua
b- El agua es fundamental para llevar a cabo funciones celulares
c-Durante la fotosíntesis se libera oxigeno (O2) y se consume dióxido de carbono (CO2), mientras que durante el proceso de respiración se consume O2 y se libera CO2, ambos procesos consumen agua.
d- el carbono es un elemento químico fundamental de los organismos. El carbono conjuntamente con oxigeno, hidrógeno y nitrógeno conforman el 95 % de la biomasa presente en la biosfera
e- el CO2 es un gas de efecto invernadero, estos gases impiden la eliminación del calor generado por los rayos del sol de la atmósfera
f- el carbono es fijado durante la fotosíntesis
g- estado gaseoso
h- en las bases nitrogenadas que conforman los ácidos nucleicos (ADN y ARN). Además, el nitrógeno es también un constituyente fundamental de los aminoácidos
i- amonificación es la transformación de compuestos orgánicos en amoníaco; nitrificación es el proceso de oxidación de amonio que da como resultado nitrito; desnitrificación consiste en el metabolismo del nitrato en organismos anaerobios; asimilación de nitrógeno abarca aquellos procesos biológicos que generan compuestos orgánicos a base de nitrógeno
j- eutrofización implica la acumulación de compuestos orgánicos en masas de agua estancada tales como, por ejemplo, lagos o embalses. Este proceso se encuentra asociado a la contaminación del agua.
Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact? primary succession secondary succession a climax community species extinction
The correct answer is B. Secondary succession
Explanation:
In ecosystems, secondary succession occurs as certain events such as fires cause vegetation to temporarily disappear from one area. However, as soil is not affected negatively, vegetation grows again after some time, which means there is a secondary growth of vegetation and changes in the structure of an ecological community.
This term applies to the situation in the 1988 fires in Yellowstone Park because the fire destroyed the vegetation in the zone temporarily, but as the soil was intact after years or decades the vegetation will grow again, although this might implied changes in the ecosystem.
Answer:
Secondary succession
Explanation:
Edge 2020
Crosses between red and white true-breeding plant types yield offspring that are pink in color. When these pink offspring are crossed with other pink individuals, the resulting progeny show a range of color. This result is consistent with the theory of
Answer:
The correct answer is - particulate inheritance.
Explanation:
The theory of particulate inheritance expresses that discrete "particles" are passed from one generation to another generation offspring. While Mendel utilized the term particles, we presently realize that these particles are really genes.
For instance, codominance in the flower of two distinct colors present in the different alleles of genes expressed or visible together without mixing and can be communicated distinctively in later generations individually.
Thus, the correct answer is - particulate inheritance.
URGENTT!
does a fire take food for energy?
does a fire reproduce?
does a fire produce waste?
Answer:
Yes, a fire takes food for energy.
No, a fire doesn't reproduce.
Yes, a fire produces waste.
Explanation:
For fire, the food that it requires is the objects that help in the process of burning. The objects can be wood, paper, coal, fuel, etc. Oxygen is required for the process of burning to take place.
The process of reproduction undergoes in living beings. Fire produces heat and light but this cannot be termed to be a process of reproduction.
Burning produces wastes in the form of ash and burned products. Therefore, it can be said that fire produces wastes.
_____ develop(s) from the fusing of one sperm and one egg, that divide once and separate into two organisms before they continue
dividing
A. Meiosis
B. Identical twins
C. Non identical twins
D. Ectopic pregnancies
Identical twins develop(s) from the fusing of one sperm and one egg, which divide once and separate into two organisms before they continue dividing.
What are identical twins?Identical twins are the result when one egg and one sperm fuse but after fusion, it divides into two fertilized eggs. These identical twins have 99% same DNA.
Identical twins, always of similar gender. They have different behaviors because behavior is developed by the environment.
Thus, the correct option is B. Identical twins.
Learn more about identical twins, here:
https://brainly.com/question/19558179
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How many polypeptide chains are shown in the tertiary protein structure in Model 3?
Answer:
3
Explanation:
Here, we are required to determine how many polypeptide chains are shown in the tertiary protein structure in Model 3 as shown in the picture attached.
The tertiary protein structure in Model 3 has 1 polypeptide chain/backbone.
Protein tertiary structure is simply defined the three dimensional shape of a protein. By convention, the tertiary structure (TS) of a protein will have a single polypeptide chain otherwise known as the polypeptide backbone with one or more protein secondary structures as the case may be. However, amino acid side chains may interact and bond in a variety of ways as evident in the diagram given.
Read more:
https://brainly.com/question/17338734
We need to ______ the biodiversity of our earth.
Answer:
increase; expand
Explanation:
Which of the following is a characteristic of the plasma membrane?
It is made up of one layer of phospholipids.
It doesn't contain any molecules aside from phospholipids.
The outward-facing phospholipid tails give it a rough quality.
It allows some molecules to pass through but prevents others from doing so.
Answer:
D. It allows some molecules to pass through but prevents others from doing so.
Explanation:
Plasma membrane or cell membrane is a selective permeable membrane which allows light molecules to pass and prevents heavy molecules.
Hope this helps ;)❤❤❤
how does increase in temperature disturb water cycle ?
Answer: Climate change intensifies this cycle because as air temperatures increase, more water evaporates into the air. Warmer air can hold more water vapor, which can lead to more intense rainstorms, causing major problems like extreme flooding in coastal communities around the world.
Labrador retrievers may have yellow fur, chocolate fur, or black fur. Coat color is determined by two genes. "E" determines dark coat and "e" light coat color. "B" determines whether the dark fur will be black, which is dominant, or brown. If you mate two chocolate labs together, what color offspring can they have
Suppose that an unusually high degree of aurora kinase activity is observed in the cervix. What could we reasonably conclude about C5M treatment efficacy across all cervical cancer cell lines, using this new information and the data within the passage
Answer:
The division of cervical cancer cells will be inhibited
Explanation:
Aurora kinases are a type of serine/threonine kinase enzymes that play critical functions during cell proliferation, and they are recognized to be potential targets in cancer therapy. The benzo[e]pyridoindole (C5M) agent is a hydrosoluble inhibitor of aurora kinases capable of inhibiting cell proliferation. C5M induces mitotic arrest by faulty (no separation) of the sister chromatids during cell division, thereby eventually leading to polyploidy and finally triggering cell death. It has been shown that C5M acts to prevent the entry in mitosis by inhibiting histone 3 (H3) phosphorylation of aurora kinases.
How do you think pollination takes place in flowering plants?
Answer:
My answer is down below.
Explanation:
Pollination occurs when the transfer of pollen grains from the anthers to the stigma of a flower of the same species take place. After reaching the stigma of the flower of the same kind of plant, the pollen grains absorb moisture from the stigma surface and begins to grow a tube. This tube is called the pollen tube.
Explanation:
insects typically pollinate flowers as they move from plant to plant searching for food. when an instects lands on a flower to feed, pollen grains sticks to its body. As the instects moves to another flower of the same species, these pollen grains are transferred to the flower's stigma and pollination occurs.
Perhaps you and/or your significant other is a carrier of a harmful recessive trait, such as cystic fibrosis. What would you do when considering having children? Would you hope for the best and ignore the situation, or would you see a genetic counselor or what?
Answer:
At birth the baby would indicate the FEIM laboratory examination or genetic analysis prior to delivery.
Explanation:
The FEIM laboratory examination is carried out by extracting a portion of blood from the newborn child, and is necessary for the accurate diagnosis of diseases such as cystic fibrosis and others such as HIV, etc.