Answer:
C. usually forms horizontal layers
Explanation:
Sedimentary rocks usually form horizontal layers.
Which brain structure is identified by the arrow in the figure?
A. Cerebellum
B. Medulla
C. Pons
D. Corpus callosum
Answer:
Cerebellum
Explanation:
Answer:
Option A, Cerebellum
Explanation:
The portion of brain highlighted in this image is cerebellum. A cerebellum is located just behind the top part of the brain stem. Also at the location of cerebellum, the spinal cord meets with the brain. The cerebellum consists of two half parts known as hemisphere. The major function of cerebellum includes receiving of information from nervous system, spinal cord and other brain parts and regulating motor movements.
Hence, Option A is correct
where in the stem cell of an embryo are the instructions located for how to build the heart
Answer:
Deoxyribonucleic acid
Explanation:
Answer:
DNA(Deoxyribonucleic acid)
Explanation:
Deoxyribonucleic acid, or DNA, is the genetic material of all cellular organisms (and most viruses).
It determines the physical and physiological characteristics of individuals, and genes are fragments of DNA that contain the information necessary for the formation of body components, such as the anatomy of the heart, the color of the eyes, the functioning of various organs, and many others.
What happens during S phase?
O
A. Chromosomes are duplicated.
O
B. The cell splits in two.
O
C. DNA separates into two nuclei.
O
D. Cytoplasm is manufactured.
Answer:
chromosones are duplicated just took test
Explanation:
Chromosomes are duplicated during the S phase of the cell cycle. Therefore, the correct statement is option A.
What is the S phase of the cell cycle?S phase, or the synthesis phase, is the second phase of interphase in the cell cycle. During this phase, the cell undergoes DNA replication, where chromosomes also get duplicated. Each chromosome consists of two identical chromatids connected by a centromere.
The process of DNA replication during the S phase involves the use of several enzymes and proteins. The process starts with the unwinding of the DNA double helix structure by the helicase enzyme creating a replication fork to which DNA polymerase enzymes attach and starts the replication process by copying the template strands of DNA.
As the polymerase moves along the template strand, the enzyme adds complementary nucleotides to create a complementary strand of DNA. Each nucleotide before adding is checked by proofreading enzymes to ensure the new DNA strand is error-free.
Therefore, chromosomes are duplicated during the S phase.
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Describe ways that water pollution occurs.
Answer:
water pollution is also one the major problem now due to over population n other thing
Explanation:
When some one throw waste in water then there is plastic also and other waste which contain different harmful chemical and directly mixed with water and pollute the water.
Water pollution is caused by contaminants entering water bodies, which can have detrimental effects on ecosystems and human health due to various pollutants. Eutrophication and oxygen-demanding waste are key factors contributing to water pollution.
Water pollution occurs through various means, including point source pollution (from a single site) and nonpoint source pollution (from multiple dispersed sites). Contaminants like chemicals, biological pathogens, and physical waste can lead to harmful effects on aquatic ecosystems and human health. Factors like eutrophication and oxygen-demanding waste contribute to water pollution, impacting water quality and organisms.
the eye of a hurricane has the
A. Most intense rainfall
B. Highest wind speeds
C. Highest air pressure
D. Warmest temperatures
Answer:
Well the eye is the most calm part of both a tornado and hurricane, so its D, Warmest temperatures :)
Hope this helped you :))
Answer:
highest wind speeds
Explanation:
the eye's temperature is usually normal for the most part. But thunder storms do occur also
why is the oxygen atom of one water molescule attracted to the hydrogen atom of another water molecule
Answer:
Hydrogen bond
explanation :
slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond. This bond is very weak.
Answer:
The ratio of hydrogen atoms to oxygen atoms is 2 to 1
Explanation:
Why does diffusion not require any energy?
A. Random particle movement allows molecules to move from an area.
B. Molecules are moving from a lower to higher concentration.
C. The higher temperatures of the membrane "jump starts" diffusion.
D. Cells only use energy to move substances across the membrane.
Final answer:
Diffusion is an energy-free process because molecules naturally move down their concentration gradient due to their kinetic energy, ultimately leading to dynamic equilibrium.
Explanation:
Diffusion does not require energy because it is a passive process where molecules move from an area of higher concentration to an area of lower concentration. This movement is driven by the inherent kinetic energy of molecules and occurs until there is no net movement of molecules, a state known as dynamic equilibrium. Factors like temperature can influence the rate of diffusion, with higher temperatures increasing the rate as molecules move more quickly.
Final answer:
Diffusion is an energy-free process where molecules spread out from higher to lower concentration areas due to kinetic energy, moving down the concentration gradient in passive transport.
Explanation:
Diffusion does not require any energy because it is driven by the kinetic energy that is inherent to all molecules and atoms due to their constant random motion. This movement is a result of the molecules spreading out from an area of higher concentration to one of lower concentration to reach equilibrium, a process known as moving down the concentration gradient. This form of movement, where molecules spread out evenly without the use of energy, is known as passive transport. Molecules continue to move randomly after reaching dynamic equilibrium, but there is no net movement from one area to another as concentrations are equal.
How is the reproductive system different from other
body systems?
Answer:
Most body systems are necessary to keep an individual alive.
Unlike other body systems, the reproductive system is not essential to keep an individual alive.
which of the following is NOT a function of the excretory system
A. Filter Body Fluids
B. Collect Water
C. Eliminate Body Waste
D. None of the above
Answer:
B. Collect Water
Explanation:
Collecting Water is NOT a function of the excretory system.
What kinds of daily activity
can contribute pollution to Surface water
runoff or to the ground water sources desene
infiltration and recharge ? Describe two
activities and tell how these would contribute
pollution to water resources so
Answer:littering and sewage
Explanation:
Daily uncontrolled litter accumulate in water sources and most of this litter trap more waste and the daily release of sewage .
Which of these is an advantage of wind energy?
A. It reduces bird and bat populations.
B. It generates noise pollution.
c. It generates electricity.
D. It increases greenhouse gas emissions.
Answer:
C
Explanation:
Wind power from for example a windmill does not create greenhouse gasses nor does it make alot of noise but by spinning does create electricity.
The advantage of wind energy is that it generates electricity. Thus, the correct option is C.
What is Wind energy?Wind power or wind energy is one of the most important use of wind turbines to generate electricity. Wind power is a popular, sustainable, renewable energy source which has a much smaller impact on the environment than that of burning fossil fuels.
Wind power contains zero carbon emission which is often associated with the operation of wind turbines. The loss for farmers or any other living beings does not occur, that is why the wind turbines use only a fraction of land area. It depends on the combustion of fossil fuels. Windmill does not pollute the air like a power plant does.
Therefore, the correct option is C.
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en 4
For the past 150 years there has been a major new input to the carbon cycle. What is it?
ed
out of
Select one:
O a. Increased animal farming has resulted in greater CO2 releases.
O
O
b. Changes in ocean currents have lead to the release of large quantities of CO2
c. Industrialization has resulted in the burning of fossil fuels such as oil and coal,
which releases CO2 into the atmosphere.
O
d. There are more humans releasing large quantities of CO2 as respiration.
Answer:
Industrialization has resulted in the burning of fossil fuels such as oil and coal,
which releases CO2 into the atmosphere.,
-c.
Answer:
c. Industrialization has resulted in the burning of fossil fuels such as oil and coal, which releases CO2 into the atmosphere.
Explanation:
For the past 150 years there has been a major new input to the carbon cycle, industrialization has resulted in the burning of fossil fuels such as oil and coal, which releases CO2 into the atmosphere.
Why do some codons code for the same amino acid as another codon?
A. it is due to mutations.
B. There are only 20 amino acids and 64 possible combinations
C. Each codon is unique and they all code for different amino acids.
Answer:
it is B
Explanation:
I have answer this question once
Answer:
B. There are only 20 amino acids and 64 possible combinations
Explanation:
A codon is the combination of three nitrogenous bases, which encode an amino acid. Some codons encode the same amino acid as another codon, this is because there are only 20 amino acids and 64 possible combinations.
Amino acids, in turn, are the organic substances that form proteins that will be responsible for various functions in our body, such as structural, enzymatic, defense, transport and hormonal functions.
A volcano that is fairly symmetrical and has both layers of lava and pyroclastic deposits is a _____.
cinder cone volcano
pyroclastic volcano
composite cone volcano
shield volcano
composite cone volcano
Answer:
Composite cone volcano
Explanation:
Composite Cone Volcanoes are large volcanic buildings with long, generally conical shape, usually with a small crater on the summit and steep flanks, constructed by the interleaving of lava flows and pyroclastic products emitted by one or more conduits, which can be punctuated. over time by episodes of partial cone collapse, reconstruction and changes in conduit location.
Compound volcanoes are found in all regions of volcanism, but it is in plate convergence zones, where a tectonic plate subdows (plunges) toward the earth's mantle beneath another tectonic plate, that these volcanic buildings are most abundant. The magmatic expression of a converging plate margin environment is usually a series of sub-regularly spaced Compound Volcanoes, forming a sub-parallel volcanic arch to the tectonic fossa.
What part of the cell membrane is not mix with water
How doe the natural process of meiosis support evolution
Answer:
Meiosis is sexual reproduction, which involves two organisms mixing their genes together to produce new offspring.The more genetic variation there is within a population, the faster it will evolve
Explanation:
During Meiosis recombination occur which cause mixing of segments of chromosomes that can lead to variation.
Variation is the leading cause of evolution.What is variation?Variations arise due to mutation, recombination at the time of gamete formation or due to environmental factors.
Variations can be categorized into two types:
Genotypic variations are caused due to changes in the chromosome or genes or due to various alleles of the same gene. They are inheritable variations.What is evolution?Evolution is the change in heritable traits of biological populations over successive generations. Evolutionary processes give rise to diversity at every biological organization level. All life on earth shares a common ancestor known as the last universal ancestor.
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which molecule is used up in photosynthesis?
Final answer:
During photosynthesis, carbon dioxide, water, and solar energy are used to produce glucose and oxygen. ATP is generated during the light-dependent reactions and is vital for the subsequent synthesis of glucose in the Calvin cycle.
Explanation:
The molecule used up in photosynthesis includes carbon dioxide (CO2), water (H2O), and also relies on solar energy to drive the reactions. During the light-dependent reactions of photosynthesis, ATP (adenosine triphosphate) is created, which along with NADPH, is used in the Calvin cycle to fix carbon dioxide, producing glucose. The overall chemical equation representing this biochemical process is 6CO2 + 6H2O → C6H12O6 + 6O2.
The ATP and NADPH generated are crucial for the synthesis of glucose in the process, which works coherently with sunlight absorbed by chlorophyll to facilitate the production of energy-rich sugar molecules. It is important to understand that the glucose produced from photosynthesis is an energy storage molecule and is later used by organisms to produce ATP through cellular respiration.
Answer: water and carbon dioxide
Explanation: yes
Why is alchemy no longer accepted?
O
A. Alchemy became less popular once Aristotle died.
O
B. The discovery of radioactivity took people's attention away from
alchemy.
O
C. Alchemists were not able to turn other metals into gold.
D. Scientists used evidence, analysis, and experiments to disprove
alchemy.
SUBMIT
Answer:
The correct answer is D. Scientists used evidence, analysis, and experiments to disprove alchemy.
Explanation:
Alchemy was based on changing a non-precious material into a precious material like lead into gold. It was considered as magic and science before the 19th century because in the 19th-century scientist get to know about the nature of metals and the periodic table that disproved alchemy.
Alchemist said that everything is made up of soil, water, fire, and earth but after the advancement of chemistry and physics it became clear that everything is made up of atoms, and lead is also made up of atom which can not be converted into gold.
So scientist used evidence, analysis, and experiments to disprove alchemy. Therefore the correct answer is D.
Which of the following is an effect of forest fires on the atmosphere? A. a decrease in water vapor B. an increase in oxygen gas C. a decrease in nitrogen gas or D. An increase in carbon dioxide
Answer:
D
Explanation:
combustion increases carbondioxide co in the armosphere
Answer:
D. An increase in carbon dioxide
Explanation:
An effect of forest fires on the atmosphere is an increase in carbon dioxide.
These type of forest fires are the most dangerous.
Suggest reasons for using synthetic forms of drugs rather than using plant extracts directly
Answer:
they lead to quick recovery
Explanation:
they contain chemicals made by professionals which lead to quick recovery
Synthetic drugs offer consistent dosages, reliable supply, and are often more potent with fewer side effects than natural plant extracts. They also contribute to lower toxicity in both human health and the environment.
The use of synthetic forms of drugs rather than plant extracts directly has several advantages. Primarily, it allows for consistent dosages and purities, which are crucial for ensuring the efficacy and safety of medications. Furthermore, because some medicinal plants are limited in availability and can be affected by environmental factors, synthesizing medications offers a reliable supply avoiding shortages and high costs associated with plant-based sources. Percy Julian's work in mass producing drugs such as cortisone and hydrocortisone stands as a testament to the success of such an approach. The synthesis process can also lead to drugs that are more potent, require lower dosages, and have fewer side effects compared to their natural counterparts. Moreover, synthetic methods can minimize the toxicity to human health and the environment.
How long should warm-up and cool-down activities take? Question 10 options: 30 minutes each 2 to 3 minutes each 5 to 10 minutes each 15 to 20 minutes each
Answer:
The correct answer would be option C, 5 to 10 minutes.
Explanation:
Warm up and cool down are the two periods in the exercise that have to be included when you do a workout. Warm up is the starting exercises of mild intensity in which the body prepares itself for the upcoming intense workout. Some simple exercises are done before starting the regular exercise. Warm up may include mild jumping, mild jumping jacks, etc. Warm up basically increases the blood flow to the muscles and prepare the muscles for the intense workout session. On the other hand, cool down is done after completing the regular intense workout session in order to relax the muscles of the body. Cool down may include mild walking or some stretches to relax the body muscles. Both warm up and cool down take 5 to 10 minutes each.
Answer:
The correct answer is "5 to 10 minutes each".
Explanation:
Warm-up and cool-down are activities that are essential to start and finish an exercise routine respectively, but usually are not considered part of the routine because they should not take too much time. According to fitness professionals, warm-up and cool-down activities should take 5 to 10 minutes each, where the longer the exercise routine the longer these activities should last.
what is a plant root an example of
Answer:
Someone else answered it, but a plant root is a example of a a plant that typically lies below the surface of the soil.
Explanation:
Plant roots are integral to a plant's ability to absorb nutrients, provide structural support, store food, and sometimes propagate asexually. The tap root system, such as that of a carrot, features a main root with secondary roots, whereas a fibrous root system, like that of grasses, consists of a dense network of roots.
A plant root is an example of an organ in plants that plays a crucial role in water and nutrient absorption, anchorage, and sometimes storage and asexual reproduction. Dandelion, with its tap root, serves as a common example of a plant that utilizes its root system for these purposes. Roots can be specialized to perform additional functions such as the bulbous roots storing starch, the taproots of carrots, turnips, and beets being modified for food storage, and roots involved in asexual reproduction like the poplar and aspen trees that form clones from their roots.
There are two primary types of root systems: the tap root system and the fibrous root system. The tap root system consists of one main root, as seen in a plant like a carrot, whereas a fibrous root system, which can be found in grasses such as wheat, rice, and corn, has a dense network of roots closer to the soil surface. The former is typically found in dicots whereas the latter is often seen in monocots.
How does transpiration pull work?
Answer:
transpiration pull –The loss of water through evaporation from the leaves must be replaces by water coming up the xylem. Water molecules are attracted to each other due to cohesion between them. These forces are strong enough to hold the molecules together in a long column.
Explanation:
Transpiration is the loss of water from the plant through evaporation at the leaf surface. It creates negative pressure (tension) at the leaf surface, causing water to be pulled up from the roots.
Explanation:Transpiration is the loss of water from the plant through evaporation at the leaf surface. It creates negative pressure (tension) at the leaf surface, causing water to be pulled up from the roots. This is known as the cohesion-tension theory of sap ascent. Water movement is driven by a difference in energy between the water in the soil and the water in the atmosphere.
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Which of the following is a decomposer?
A. Worm
B. Fern
C. Banana
D. Wolf
Answer: Worm
Explanation:
Answer:
its a. worm
Explanation:
how is NADPH different from NADP+
A) it has gained one proton
B) it has lost one proton
c) it has gained one electron
d) it has lost one electron
please help me!!! i took the test and got this question wrong
Answer:
I think is B, lmk if I was rt
Answer:
It has gained one electron
Explanation:
Got it correct on test
In cellular respiration, stored chemical energy in (2 points)
Question 3 options:
1)
ATP and NADH is converted to carbohydrate molecules
2)
ATP molecules is used to build NADH molecule
3)
organic molecules is converted to ATP molecules
4)
food is used to make organic molecules like glucose
Answer:
In cellular respiration, stored chemical energy in organic molecules is converted to ATP molecules- 3)
ANSWER:
The correct option is C- Organic molecules are converted to "ATP molecules".
EXPLANATION:
Cellular respiration is the process that provides energy for the important life processes. Cellular respiration is essential for all living organisms and therefor all living cells must carry out this process. In this respiration, ATP is released which is essentially energy needed for all life processes of an organism. Cellular respiration can be aerobic when it takes place in the "presence of oxygen" or it can be anaerobic i.e. respiration takes place without the presence of oxygen.List three possible challenges Darwin might have faced ?
Who is Darwin? Please be more specific.
HELP!! The figure below shows ocean currents. Where will climate change slow the currents the most, causing colder temperatures, and why?
Answer:
Along the Kuroshio Current, because it is carrying water north towards melting ice caps
Explanation:
The ocean currents have the tendency to be faster when they are warmer, and to be slower when they are colder. The reason for this is that the warmer water is less dense, thus it can move more quickly, while the colder water is denser, thus heavier, so it moves slower. The Kuroshio Current moves from the lower latitudes toward the higher latitudes. As it does, this ocean current is becoming colder and colder as it gets closer to the higher latitudes, so it is becoming denser, heavier, and because of it slower. Another thing that will contribute to this current's slowing down are the melting ice caps because of the climate change, as they will make the water even colder, and the Kuroshio Current will come across this cold water, so it will decrease its speed significantly.
Which two statements are true?
Answer:
B) Electric forces and magnetic forces are different aspects of a single electromagnetic force.
C) The operation of a motor depends on the relationship between electric and magnetic forces.
Explanation:
A) The definition of electric force:
two charged objects is directly proportional to the product of the quantity of charge on the objects and inversely proportional to the square of the separation distance between the two objects.
Electromagnetic force:
a type of physical interaction that occurs between electrically charged particles.
They are no identical so the statement is not true.
B) A magnetic doesnt have to be moving for a magnetic field to exist because when they are near each other and not moving there is a magnetic field.
So this statement is not true
Hope This Helps!!
The Two statements which are true are B. Electric forces and magnetic forces are the different aspects of a single magnetic force. C. The operation of the motor depends on the relationship between electric and magnetic forces.
what is an instance of electrical pressure?
electric force Examples
This addition of electrons to the hairbrush in flip makes the hairbrush negatively charged. because the hair is now positively charged, and as forces repel, hair strands will pass far away from each different, resulting in the hair status up.
What are the two magnetic forces?The two styles of magnetic forces are attractive magnetic forces and repulsive magnetic forces. the previous pulls magnetic materials in the direction of every difference and the latter pushes them away from each different.
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What is the difference between the rough and smooth endoplasmic reticulum