Explanation:
Two oxygen atoms bonds with each other via covalent bonding.
In the formation of covalent bonds, two atoms with little to no electronegativity difference combines by sharing of the valence electrons. This why homonuclear molecules can be formed.
Two atoms of the same kind having zero electronegativity difference forms this covalent bonds. There is equal sharing of electron pair between the atoms and there is no electrostatic charge on the molecule.For the oxygen atom with 6 valence electrons;
two electrons are shared by each atoms to make a complete octet and a stable molecule.
Where do Earth’s convection currents occur?
the lithosphere
tectonic plates
the asthenosphere
the subduction zone
Answer:
The asthenosphere
Explanation:
Heat is generated from the radioactive decay of elements in the interior of the Earth, which creates magma in the asthenosphere. Hope this helped
Answer:
the athenosphere
The mantle is where convection currents occur. Magma from the core help fuel these currents. The answer to the question is the athenosphere.
Hope this helps you!
Which is the answer A B C Or D
Answer:
I believe that it might be choice A, but I'm not entirely sure.
can you pls help me??
Answer:
photosynthesis
Explanation:
it's how plants produce energy
Identify two genetic disorders and state how their karyotypes differ from a normal
karyotype due to a chromosomal abnormality.
PLEASE HELP ILL GIVE BRAINLIEST
Answer/Explanation:
Down's syndrome - individuals with Down Syndrome have an extra copy of chromosome 21 (trisomy 21). This causes affected individuals to have learning disabilities as well as a range of health problems such as heart problems, growth delay, and characteristic facial features.
Turner syndrome - individuals with Turner Syndrome only have one X chromosome, but no Y chromosome (written XO). They are phenotypically female, but lacking the second X chromosome. This means they have underdeveloped ovaries, and are infertile. They also have a range of other features such as a short stature, a thick neck, and heart issues.
Answer:
yes
Explanation:
just did it
Explain the role of the ozone layer in sustaining life on Earth.
Answer:
The O3 layer, (Ozone Layer) leads a greatly significant role in sustaining life on Earth. It acts as a barrier against the harmful UV rays from the Sun. The Ozone and Oxygen molecules are able to absorb a staggering 95% to 99.9% of the ultraviolet radiation travelling to our planet. When this ultraviolet radiation is absorbed, heat is generated.
Answer:
The ozone layer helps regulate the Earth’s temperature by absorbing a large percentage of the UV radiation entering the atmosphere. This protects living organisms from exposure to large amounts of UV radiation, maintains livable climates, and regulates the amount of harmful ground-level ozone.
Explanation:
edg 2020
Which of the following is NOT true of proteins?
a. they form muscle, skin and hair
b. they are found in food
c. they are a main source of energy
d. they are sensitive to pH and temperature
Match each earthquake or volcanic feature with its description.
will mark brainliest
Answer:
1. Simple fold in rock layers
2. Magma that squeezes into rock layers in a vertical sheet
3. Break in rock formed by colliding plates; produced by compressional stress
4. Break in rock formed from plates moving parallel to each other, creates shear stress
5. Feature formed from rock and ash
6. Feature formed from layers of ash and lava
7. Raised block of rock between two normal faults
8. An underwater volcano that never surfaces
9. Earth's crust that rises high in elevation from colliding continental plates
10. Very large, bowl-like features formed from an explosive eruption
hope this helps! :-)
The earthquake or volcanic feature with its description is given below:
1. Monocline - Simple fold in rock layers.
2. Di-ke -Magma that squeezes into rock layers in a vertical sheet.
What is earthquake ?The term earthquake is defined as a weak to violent shaking of the ground formed by the sudden movement of rock materials below the earth's surface. The earthquakes produced in tectonic plate boundary.
3. Reverse fault - Break in rock formed by colliding plates; produced by compressional stress
4. Strike slip fault - Break in rock formed from plates moving parallel to each other, creates shear stress
5. Cinder cone volcano - Feature formed from rock and ash
6. Composite volcano - Feature formed from layers of ash and lava
7. Horst - Raised block of rock between two normal faults
8. Seamout - An underwater volcano that never surfaces
9. Foudaid mountain - Earth's crust that rises high in elevation from colliding continental plates
10. Caldera - Very large, bowl-like features formed from an explosive eruption
Thus, Magma that squeezes into rock layers in a vertical sheet is called as di-ke.
To learn more about the earthquake, follow the link;
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PLEASE HELP.... 50 POINTS + BRAINLIEST TO FIRST CORRECT ANSWER THAT IS DETAILED WITH GOOD EXPLANATION AND A CLEAR ANSWER. ANY FAKE ANSWERS OR WRONG ANSWERS WILL BE REPORTED AND DELETED SO YOU WILL LOSE YOUR POINTS. TYSM!!!!
Which of the following does NOT describe why it’s important for scientists to use scientific methods?
a. The steps help guarantee accurate results.
b. Using a standard method makes it easier for scientists to share their results.
C. The scientific method is a tool that can make finding answers to questions easier.
D. Without the scientific method, we cannot make observations.
Explanation:
option B .............
Scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. What is one benefit of this procedure?Which best describes cancer cells?
Answer:
The answer is A. Patients do not receive harmful or ineffective medication.
Explanation: Test
Answer:
The answer is A) Patients do not receive harmful or ineffective medication.
Explanation:
I got it right
Roberto stepped onto the hot sand at the beach. Realizing it was hot, he quickly moved to the shaded area. Which two systems worked together to move him safely into the shade so that he doesn't hurt his feet? A. Nervous and muscular B, Nervous and cardiovascular C. Cardiovascular and respiratory D. Immune and muscular
Answer:
A. Nervous and muscular
Explanation:
The thermoreceptors of the sensory afferent pathway were activated when they perceived high temperatures, and after that they sent a signal to the CNS for it to execute the "withdrawal" reflex in the face of danger or pain.
The reflex act is an immediate and unconscious action, like walking, and like other movements that are coordinated between the CNS, SNP, NEUROMUSCULAR PLATE AND MUSCLE.
1. What are the three most familier states of matter?
Answer:
gas, liquid, solid
Explanation:
I could also list 12 other states of matter if you're interested
Answer: Solids, liquids and gases are the most familiar states of matter.
Plz mark brainleist:)
Xavier observes a fully lit moon. When can he expect to see the moon look like this again?
In about 12 hours
In about 24 hours
In about 15 days
In about 30 days
Answer:
In about 30 days
Explanation:
Assume Xavier sights a full moon today, it'll take around 29.5 days to see the moon at that size again.
Analysing each of the given options, only option D answers the question because 29.5 days can be rightly said to be about 30 days.
Or better still, 29.5 days approximates to 30 days.
How do the sizes of planets, solar systems, galaxies, and the universe relate to one another?
Answer:
Our Solar System consists of our star, the Sun, and its orbiting planets(including Earth), along with numerous moons, asteroids, comet material, rocks, and dust. Our Sun is just onestar among the hundreds of billions of stars in our Milky Way Galaxy. ... Theuniverse is all of the galaxies – billions of them!
Explanation:
I hope this answer is Wright, So mark as brainlist
Why does having low levels of glucose or oxygen in his cells make it difficult for Guillermo to walk up steps? Which
Which colors were absorbed best by the plant
Answer:
the flower part or red flower like rose
Explanation:
because roses are best known as ornamental plants grown for their flowers in the garden and sometimes indoors. They have been also used for commercial perfumery and commercial cut flower crops. Some are used as landscape plants, for hedging and for other utilitarian purposes such as game cover and slope stabilization.
During a science lab the teacher provided Michael with a triple-beam balance, a ruler, and four cube-shaped metals. Michael correctly calculated the densities of the objects and compared his calculations with the data table below. Based on Michael's calculations and the table below, which conclusion can be BEST made?
Iron has the highest density.
Aluminum has the lowest density.
Weight is used to determine density.
Substances can be identified by their density
THE ANSWER IS D YOU ARE WELCOME
During a science lab the teacher provided Michael with a triple-beam balance, a ruler, and four cube-shaped metals. Based on Michael's calculations and the table below, the conclusion can be BEST made Substances can be identified by their density
what is density?
Density refers to the mass of a unit volume of a material substance. The formula for density is represented by d = M/V, where d is density, M is mass, and V is volume.
It is commonly shown as units of grams per cubic centimeter, it can also be expressed as kilograms per cubic meter .
Density can used to define how different materials interact when mixed together. For example Wood floats in water because it has a lower density, while an anchor sinks because the metal has a higher density.
Density can be applied in pipe design, shipbuilding, helium balloons, weight distribution in the aero plane, and the fact that ice floats on water.
For more details regarding density, visit
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Selena learns that, as specialized cells mature, certain organelles increase in
quantity while other organelles may disappear. She also learns that muscle cells
require large quantities of energy in the form of ATP. Based on this, she can predict
that muscle cells would contain an unusually high number of
A Lysosomes
B Ribosomes
C Rough endoplasmic reticulum
D Mitochondria
Explanation:
rewatch the video your teacher provided on edunity
Answer:
mitochondria
Explanation:
muscles need energy for contraction and lots of mitochondria is what helps them do this
PLS help me to get brainliest
Why is the following molecule nonpolar and hydrophobic?
The image shows a polymer composed of a chain of 14 carbon atoms. The first carbon atom is bound to three hydrogen atoms. The next 12 carbon atoms are bound to two hydrogen atoms. The final carbon atom is bound to a carboxyl group.
The carbon and hydrogen atoms share electrons equally.
The glycerol molecule in fats contains a carboxyl group.
There are exactly three fatty acid chains present in each fat molecule.
There is an unequal distribution of hydrogen and oxygen atoms.
Answer:
a
Explanation:
The following molecule is nonpolar and hydrophobic because the carbon and hydrogen atoms share electrons equally. The correct option is A.
What are nonpolar and hydrophobic?Non-polar molecules are those which can not be dissolved in water. These molecules have ends that are not dissolved in water. Hydrophobic is a quality of the substance that is not dissolved in water or repels water.
The image shows a polymer made up of three hydrogen atoms are bonded to the initial carbon atom. Two hydrogen atoms are joined to the next 12 carbon atoms. A carboxyl group is attached to the last carbon atom.
Since charges fluctuate, a momentary dipole moment exists in a so-called nonpolar molecule.
Thus, the correct option is A, The carbon and hydrogen atoms share electrons equally.
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What would be the difference in precipitation patterns for a climatogram of a grassland versus a desert?
Answer:
hjdhrehshsjsjsjsjjs
Southern Florida has many tropical hardwood hammocks—forest habitats that are warm, wet, and populated with many broad-leaved evergreen trees. Why might a plant native to an ecosystem with a cooler climate do well if introduced to a tropical hardwood hammock? Group of answer choices The trees in the tropical hardwood hammock are better at competing for native resources than the introduced species are. The wet conditions in the tropical hardwood hammock disrupt the life cycle and limit reproduction of the introduced species. Freezing temperatures that normally limit the population in the cooler climate are lacking in the tropical hardwood hammock. Pollinators and seed carriers that normally increase the population in the cooler climate are lacking in the tropical hardwood hammock.
Answer:
Freezing temperatures that normally limit the population in the cooler climate are lacking in the tropical hardwood hammock.
Explanation:
The tropical hardwood hammocks are habitats that act as small ecosystems markedly different from the surrounding environment, and they may be seriously threatened by introduced plant species. In Florida, exotic plants have been introduced into the tropical hardwood hammock habitat, reaching to about 50% of the flora in some areas. The mature hammock of these habitats can generate a shade that maintains a temperature of several degrees cooler compared to their neighboring habitats, and thereby promoting invasion by exotic species.
Which type of earthquake will be most destructive
O shallow focus with 4.5 magnitude
O
deep focus with 4.5 magnitude
shallow focus with 3.5 magnitude
O deep focus with 3.5 magnitude
Answer:
b
Explanation:
shallow focus with 3.5 magnitude would be very big because its shallow.
In some developing nations, the percentage of animal protein from fish in the diet can be as high as____. 20 percent 80 percent 10 percent 40 percent
Answer:
18 percent
Explanation:
Which type of rock forms as a result of cooling and crystallization?
igneous
metamorphic
clastic
sedimentary
1. What is the main purpose of binary fission? *
A. To produce an egg and a sperm cell
B. To produce a new organism (like bacteria)
C. To produce a new organ
D. To differentiate
Answer:
Answer A or B
Explanation: I say its a or b because if your in biology then this would mostly likely be your answer. Also when for one two daughter cells would usually go for sperm and egg cells but at the same time binary fission can be used for making for bacteria. If it were me i would choose B, but test your luck.
The rock in the image is marble, which has many layers and is extremely hard. It was formed under high heat and pressure. Marble is an example of
rock changing into
rock.
Answer:
Marble is a metamorphic rock.
Explanation:
Metamorphic rocks were once igneous or sedimentary rocks, but have been changed as a result of intense heat and/or pressure within the Earth's crust. They are crystalline and often have a “squashed” texture.
Deforestation is the permanent destruction of forests in order to make the land available for other uses. This process leads to fewer plants being available to conduct photosynthesis. Which of these is a possible effect of deforestation on the process of cellular respiration?
Answer:
A lesser amount of oxygen will be available for cellular respiration
Explanation:
Deforestation can be defined as the permanent removal of trees in forest areas for other land uses (for example, agriculture use). It is well known that deforestation has a negative effect on natural ecosystems. An important proportion of the oxygen in the air is generated by plants during photosynthesis, and it has been estimated that about 30% of the land photosynthesis is due to tropical forests. Aerobic cellular respiration is a metabolic pathway by which organisms use oxygen to produce energy in the form of ATP. In consequence, deforestation represents a serious problem to sustain cellular respiration, and ultimately to sustain life.
Answer:
Less oxygen is available for use during cellular respiration.
Explanation:
I just took the test
what characteristics are affected by genetics?
Answer:
Well.
Explanation:
1. Weight
2. Height
3. Chronic Diseases
4. Skin color
5. Eye color
6. Race
7. Hair color
8. And the overall shape of your whole body (ie, head shape)
Answer:
The characteristics that are impacted by genetics are :
-The eye color
-The nose shape
-Hair color
-Face shape
-Skin color
-And any type of beauty mark someone has
will mark brainliest ⚠️⚠️ please help
Answer:# 1 is salt #2 is fresh #3 fresh #4 salty
Explanation:
I REALLY NEED HELP PLEASE AND THANK YOU!!! I WILL LOVE YOU FOREVERRR!!!
Please write a 1 page explanation of Mitosis, how it occurs, where it occurs, why it occurs, we will discuss it tomorrow. Make sure you cover all of the phases and describe what occurs in each.
Answer: Mitosis is a type of cell division in which one cell (the mother) divides to produce two new cells (the daughters) that are genetically identical to itself. In the context of the cell cycle, mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.
The great majority of the cell divisions that happen in your body involve mitosis. During development and growth, mitosis populates an organism’s body with cells, and throughout an organism’s life, it replaces old, worn-out cells with new ones. For single-celled eukaryotes like yeast, mitotic divisions are actually a form of reproduction, adding new individuals to the population.
In all of these cases, the “goal” of mitosis is to make sure that each daughter cell gets a perfect, full set of chromosomes. Cells with too few or too many chromosomes usually don’t function well: they may not survive, or they may even cause cancer. So, when cells undergo mitosis, they don’t just divide their DNA at random and toss it into piles for the two daughter cells. Instead, they split up their duplicated chromosomes in a carefully organized series of steps.
Answer:
no
Explanation:
1 page is excessively long
