Why is it important for DNA to be duplicated exactly before a cell divides?
Answer: DNA replication is important because it creates a second copy of DNA that must go into one of the two daughter cells when a cell divides. Without replication, each cell lacks enough genetic material to provide instructions for creating proteins essential for bodily function. DNA is generally tightly packed into a structure called chromatin.
Explanation:
It is important for DNA to be duplicated exactly before a cell divides because one copy of DNA transfers into the nucleus of the daughter cell.
What is DNA duplication or replication?DNA duplication is also known as DNA replication. A double-stranded DNA molecule is copied to create two identical DNA molecules through the process of DNA replication.
Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process. All living things replicate their DNA, which is the primary mechanism for biological heredity.
Thus, it is important for DNA to be duplicated exactly before a cell divides because one copy of DNA transfers into the nucleus of the daughter cell.
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While watching a recent science fiction movie, one Klingon spaceship blows up a Droid spaceship with a laser gun. The Klingon crew watches out the port window and covers their ears to muffle the noise from the explosion. Scientifically, this scene is inaccurate because
Answer:
Space is a vacuum thus you wouldn't be able to hear any noise.
Yuhan is creating a model of a virus, and she studies the table that outlines the differences between viruses and cells.
Viruses and Cells
Characteristic Virus Cell
Structure DNA or RNA in capsid, some with envelope Cell membrane, cytoplasm; eukaryotes also contain nucleus and many organelles
Reproduction Only within a host cell Independent cell division, either asexually or sexually
Genetic Carrier DNA or RNA DNA
Growth and Development No Yes; in multicellular organisms, cells increase in number and differentiate
Obtain and Use Energy No Yes
Response to Environment No Yes
Change Over Time Yes Yes
Study the table. For which reason do the datasupport the classification of viruses as nonliving?
A. Viruses contain genetic information.
B. Viruses evolve over time.
C. Viruses reproduce inside host cells.
D. Viruses do not take in nutrients.
Answer:
D
Explanation:
The answer is D, even though they also need a host cell to reproduce that is not mentioned in the table so the answer is D.
The data support classifying viruses as nonliving because they do not take in nutrients, lack independent metabolic processes, and cannot grow or develop independently. Option D is correct,
The data in the table support the classification of viruses as nonliving for several reasons. A key point is that viruses do not take in nutrients (Option D), reflecting their lack of metabolic processes and inability to obtain and use energy independently. Viruses also do not grow and develop like living cells, which further indicates they do not possess the full traits of life. Additionally, while viruses can reproduce, they can only do so within a host cell, indicating their dependence on other organisms for replication. In contrast, living cells have the ability to independently divide, grow, develop, obtain energy, and respond to their environment. These distinctions underscore why viruses are classified as nonliving entities.How is the carbon cycle similar to the water cycle?
Answer:
The water cycle uses plants for uptake of water and transpiration from the surface, so that water can be sent to the atmosphere. Carbon cycle uses plants for uptake of CO2, by which it is removed from the atmosphere
Explanation:
The carbon and water cycles are similar as they involve movement and transformation of substances in different reservoirs. Both play crucial roles in maintaining life on Earth.
Explanation:The carbon cycle and the water cycle are similar in several ways:
Both cycles involve the movement of substances through different reservoirs or spheres. In the carbon cycle, carbon moves between the atmosphere, living organisms, and the Earth's crust. In the water cycle, water moves between the atmosphere, bodies of water, and the Earth's surface.Both cycles involve processes that cause the substances to change state. In the carbon cycle, carbon dioxide is taken up by plants during photosynthesis and released during respiration. In the water cycle, water evaporates from bodies of water, condenses into clouds, and precipitates back to the surface.Both cycles play important roles in maintaining life on Earth. The carbon cycle is essential for plants to produce food through photosynthesis, while the water cycle ensures the availability of fresh water for drinking and other activities.Overall, the carbon cycle and the water cycle are interconnected processes that involve the movement and transformation of substances on Earth.
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2. Which take deoxygenated blood back
to the heart?
O veins
O arteries
O capillaries
What happens to this carbon once it ends up in this reservoir? Does it cause any adverse changes to ecosystems there?
Answer:The carbon cycle plays a key role in regulating Earth's global temperature and climate by controlling the amount of carbon dioxide in the atmosphere. The greenhouse effect itself is a naturally occurring phenomenon that makes Earth warm enough for life to exist.
Explanation:
Carbon can be stored in various reservoirs for long periods as part of the carbon cycle, including the atmosphere, oceans, sediment, soil, rocks, and Earth's interior. It can potentially have adverse effects on ecosystems when it enters the atmosphere as CO2.
Explanation:The carbon once it ends up in a reservoir can be stored for long periods as part of the carbon cycle. Carbon reservoirs include the atmosphere, bodies of liquid water (mostly oceans), ocean sediment, soil, rocks (including fossil fuels), and Earth's interior. Carbon can enter the atmosphere again as CO2, which can potentially have adverse effects on ecosystems.
The 33 separate bones of the backbone are called
Answer:
Vertebrae
Explanation:
Your back can't be a solid bone because you wouldn't be able to pick things up off the ground, or twist around to see things.
Answer:
Vertebrae
Explanation:
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx.
Please help I’m stuck.
Answer:
TAACGGCATTGGCTA
Explanation:
T-A
G-C
Which value is being measured in the columns labeled
"Fraction remaining" and "Percentage remaining"?
years of decay
O quantity of energy
O number of stable atoms
O amount of material that has not decayed
Hurry
how could knowing that giraffes are four distinct species change the approach of conservationists or zookeepers who work with giraffes?
Answer:
It would help the zookeeper in their breeding program so as not to interbreed the four different species, but rather to breed each species seperately, so as to keep the giraffe as a whole from population pollution by producing hybrids that do not have much conservation values.
Knowing that giraffes are four distinct species could change the approach of conservationists and zookeepers who work with giraffes by requiring different conservation strategies and breeding programs for each species.
Explanation:Giraffes are now recognized as four distinct species: the southern giraffe, the Masai giraffe, the reticulated giraffe, and the northern giraffe.
This new understanding of giraffes as separate species could change the approach of conservationists and zookeepers who work with giraffes by requiring different conservation strategies and breeding programs for each species.
Conservationists and zookeepers would need to consider the specific habitat requirements, feeding preferences, and social behaviors of each species in order to effectively protect and care for them.
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explain the factors that would influence how fast echinoderms grow and how big they become
Answer:
Environmental factors and climate conditions affect the growth and how fast they grow.
Explanation:
An echinoderm is an organism (all marine) that has a spiny skin. The word "echinoderm" means "spiny skin." Starfish, sea cucumbers, brittle stars, and sea urchins are examples.
Most echinoderms develop from larvae to adolescent echinoderms by direct, or indirect development. In direct development, the fertilized egg is able to enter juvenile stage without becoming a larva. The juveniles stay close to the parent, and are cared for and looked after.
Echinoderms evolved from animals with bilateral symmetry. Although adult echinoderms possess pentaradial, or five-sided, symmetry, echinoderm larvae are ciliated, free-swimming organisms that organize in bilateral symmetry which makes them look like embryonic chordates.
Echinoderms have adapted to match the colour of their surroundings. Also, to protect and structure their bodies, Echinoderms such as sea urchins have interlocking plates of Calcium Carbonate which form a very hard internal skeleton.
An emission of energy as waves or subatomic particles:____ A. longitudinal B. radiation C. sound D. Surface E. transverse F. waves
Answer:
Radiation
Explanation:
emission of energy as electromagnetic waves or as moving subatomic particles.
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Which of the following are most likely part of a nucleotide of DNA? *
A.uracil, ribose, guanine
B.uracil, deoxy ibose, guanine
C.thymine, ribose, cytosine
D.thymine, deoxyribose, cytosine
Final answer:
The correct components of a DNA nucleotide are thymine, deoxyribose, and cytosine, making option D the correct answer for a nucleotide of DNA. So the correct option is D.
Explanation:
To determine which of the following are most likely parts of a nucleotide of DNA, we need to understand the components that make up a nucleotide in DNA. A DNA nucleotide is composed of three main parts: a 5-carbon sugar called deoxyribose, a phosphate group, and a nitrogenous base. DNA contains four types of nitrogenous bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Notably, uracil (U) is not found in DNA; it is instead found in RNA and replaces thymine as a nitrogenous base.
Among the options provided, the most accurate parts that would be found in a DNA nucleotide are thymine, deoxyribose, and cytosine. Therefore, the correct answer is:
D. thymine, deoxyribose, cytosine
ONE QUESTION 60 POINTS PLEASE BE QUICK (and correct!)
Erosion is responsible for the formation of _____.
volcanoes
deltas
glaciers
all of the above
Answer:
Hi there
Erosion is responsible for the formation of glaciers
Hope it will help you
Explanation:
erosion is responsible for formation of glaciers
Which major contribution did Carolus Linnaeus to scientific study?
A classifying plants and proposing the theory of evolution
B classifying organisms and devising a system of scientific names
C studying animal remains and developing methods for experimental design
D using Greek names to identify every living thing
I am pretty sure that the answer is B.
help PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Answer:
A, They break down dead organisms and add nutrients back to the soil that plants use.
Explanation:
Decomposers do do this, and they don't do the other two options so this would be the best option. Hope this helped :)
Why are frogs said to have “two lives” ?
Answer:
One because they are amphibianstwo because amphibian means two lives third because they live on land and seaFourth because they live longer (I think)Explanation:
Frogs begin their lives in the water as eggs and then tadpoles and when they are fully developed they live on land.
Hope this helpsHope this is correctBrainliest plzAsk questions
Frogs are said to have “two lives” because they undergo a complete metamorphosis, meaning that they change form completely from one stage of life to another.
What occurs in frog metamorphosis?In their early life, frogs are called tadpoles. Tadpoles live in water and have gills for breathing. They eat algae and other small organisms. As they grow, tadpoles develop legs and lungs. They also lose their gills and become able to breathe air.
When tadpoles are fully grown, they metamorphose into frogs. Frogs live on land and have lungs for breathing. They eat insects and other small animals. The change from tadpole to frog is a dramatic one, and it is why frogs are said to have “two lives.”
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Jill is studying the temperature output of an ammonium chloride hand warmer. What apparatus will best help her monitor the temperature change of the reaction?
Answer:
a thermometer
Explanation:
The apparatus that will help Jill to monitor the temperature change of the reaction would be a thermometer.
A thermometer is an instrument used in the measurement of temperature or temperature gradients across two regions.
A typical thermometer consists of 2 elements, namely;
A sensor that responds to temperature changes, andA scale or graduation that is used to measure the temperature changes.As the sensor responds to changes in temperature, the magnitude of change is indicated on the scale and this magnitude is what is recorded as the temperature of a body of a system.
Which statement best describes the process that produced one of the ending
populations of moths?
A. A new mutation allowed dark-colored moths to live on light-
colored trees
B. Dark-colored moths learned to adapt to dark-colored trees.
C. Light body color became an adaptation in moths on dark-colores
trees.
D. Light-colored moths were selected for on light-colored trees.
Answer:
i think it would be option B
hope this helps
Light-colored moths were selected for on light-colored trees best describes the process that produced one of the ending populations of moths. Hence option D is correct.
What is natural selection?Natural selection is a process by which certain traits or characteristics become more or less common in a population over time, based on their ability to help organisms survive and reproduce in their environment.
This statement refers to the classic example of natural selection in peppered moths, which were studied during the Industrial Revolution in England.
Before industrialization, the majority of peppered moths had light-colored wings, which provided camouflage on light-colored tree trunks, where they would rest during the day.
However, as industrialization caused pollution to darken the tree trunks, dark-colored moths became more visible to predators, while light-colored moths became better camouflaged.
As a result, the light-colored moths were more likely to survive and reproduce on light-colored trees, passing on their light-winged trait to their offspring.
Therefore, option D is the best statement that describes the process that produced one of the ending populations of moths.
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Which is not a type of mechanical wave?
O A. surface wave
O B. earthquake wahy
O c. electromagnetic wave
O D. sound wave
Answer:
c. electromagnetic wave
**Explanation**
electromagnetic waves are waves that have an electric and magnetic nature and are capable of traveling through a vacuum. Electromagnetic waves do not require a medium in order to transport their energy. Mechanical waves are waves that require a medium in order to transport their energy from one location to another.
✌️;)
Which climate favors mechanical weathering?
dry dinale
cold climate
warm climate
desert cmate
which is NOT an example of how an ecosystem can change suddenly?
What is the discriminat of the quadratic equation 3-4x=-6x^2
Answer:
-56
Explanation:
ax^2 + bx + c = 0 is the discriminant of the quadratic equation
3 - 4x= -6x^2
to
-6x^2 + 4x -3 = 0
We know that:
a = -6
b = 4
c = -3
Substitute in the formula of discriminant (b^2 - 4ac):
= 4^2 - 4 * (-6) * (-3)
= 16 - 4 * 18
= -56
Help quickly please
Answer This Plzzz!!!
Answer:
fungus is the answer
Explanation:
it decomposes
Which of theses statements correctly describes estuaries?
Answer:
An esuarie is the tidal mouth of a large river, where the tide meets the stream.
An estuary may be defined as a type of ecotone that illustrates a transitional zone of the freshwater river ecosystem and marine water ocean ecosystem.
What do you mean by Ecotone?An ecotone may be defined as a type of transitional zone where two ecosystems meet with each other. In a more simple sense, it is defined as the zone between to ecosystems.
In an ecotone, characteristics of both ecosystems are present, hence ecotone has high biodiversity as compared to both ecosystems. It is known as the edge effect.
When we talk about an estuary, it is an ecotone that comprises two ecosystems like a river and an ocean ecosystem. The water of the river is fresh while the ocean is salty.
Therefore, an estuary may be defined as a type of ecotone that illustrates a transitional zone of the freshwater river ecosystem and marine water ocean ecosystem.
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Which of the following best describes the position of the Solar System within the Milky Way Galaxy?
A
halfway between the center of the Milky Way Galaxy and its outer edge
B.
along the outermost edge of the Milky Way Galaxy
C.
exactly at the center of the Milky Way Galaxy
D.
close to the center of the Milky Way Galaxy on its innermost arm
Answer: A we are half way to the center of the milky way
Explanation:
we are in the oron arm in the milky way and that is half way through the galaxy
Does fruit salad go through a chemical change ?
Answer:
(3) Rusting of almirah is a chemical change since during rusting, a new chemical compound called hydrated iron oxide (rust) is formed. ... (7) Making a fruit salad with raw fruits is a physical change since there is no change in the chemical properties of the fruits but only the physical appearance has changed.
Explanation:
I just got it right on my test
Answer: False; a physical change
Explanation: A chemical change would be for instance if you add a fire and change its chemical property. So this would be a physical change because only its physically appearance has changed.
How might the human body be compared to a car bicycle? Need help like now! 15 points <33
Answer:
There are some similarities present between human body and car.
Explanation:
In human body, mechanical work is done with the help of energy while the car moves when energy is present in it. Human body gets energy by eating food while the car gets energy from the burning of fossil fuels such as petrol, diesel and CNG etc. Both human and car used organic compounds for the generation of energy. In human body, movement occurs through legs while in cars wheels used for movement from place to place. In human body, stomach produces energy while in cars, engine generates energy.
1. What are 3 personality traits that storm chasers should have?
Answer:
first is narsacisstic
second lovely
3 is boastful