A student wanted to find out more about the cell cycle.
The student made a slide of an onion root tip.
She counted the number of cells in each stage of the cell cycle in one field of view.
The table below shows the results.
UNDAN
Stages in the cell cycle
Stage 1 Stage 2 Stage 3 Stage 4
Non-dividing cells
Total
Number of cell
20
S
9
9
4
2.
2
1
36
Each stage of the cell cycle takes a different amount of time.
Which stage is the fastest in the cell cycle?
Answer:
ask ya momma, duh duh dummy
Explanation:
do ya own work
What are the six kingdoms of life?
O Archaebacteria, Eubacteria, Animalia, Protista, Mammal, Plantae
O Archaebacteria, Eubacteria, Animalia, Protista, Fungi, Plantae
O Eubacteria, Animalia, Protista, Fungi, Species, Archaebacteria
• Insectae, Eubacteria, Animalia,
Protista, Fungi, Plantae
Answer:
The answer is B
Archaebacteria, Eubacteria, Animalia, Protista, Fungi, Plantae
Explanation:
No such thing as kindom mammal, eubacteria or insectae. edg 2021
How will gene therapy be used in the future?
Please help me
Thank you
Answer:
I think to create new medical procedures
Explanation:
What is the difference between Junior planets and Terrestia planets? Which group is closest to the sun?
Answer:
Terrestrial planets include: Mercury, Venus, Earth, and Mars (in order from closest to the sun to farthest from the sun)
Jovian planets include: Jupiter, Saturn, Uranus, and Neptune (in order from closest to the sun to farthest from the sun)
Explanation:
Terrestrial planets have solid surfaces (usually rocky) with a dense metallic core, while Jovian planets are gas giants, meaning that they have no solid surface. Jovian Planets have a large gaseous composition and a small, molten rock core.
Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
I hope this helped <3
Which interest group opposed the U.S. Clean Water Act?
A) citizens of small towns that lacked water treatment facilities
B) mayors of large cities such as New York and Chicago
C) duck hunters
D) owners of printing companies in Tennessee
None of the interest groups mentioned opposed the U.S. Clean Water Act. In fact, the Clean Water Act was passed with broad support from a variety of stakeholders, including environmental groups, industry, and government agencies.
What is the Clean Water Act?The Clean Water Act (CWA) is a federal law enacted in 1972 with the aim of regulating and protecting the nation's waters from pollution and contamination. The CWA established a framework for controlling and limiting the discharge of pollutants into navigable waters, including rivers, lakes, and coastal areas, and set water quality standards to ensure that waters are safe for human use and aquatic life.
The Act provides a regulatory framework for permitting discharges of pollutants, sets water quality standards for contaminants, and establishes a program for regulating the discharge of pollutants from stormwater runoff. The CWA has been amended several times to strengthen its provisions, and it remains a critical tool for protecting water resources and public health in the United States.
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What molecule from the atmosphere is captured during photosynthesis to generate plant food and biomass?
Answer:
The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.
Explanation:
:)
Q7 What can we hear but cannot touch?
Answer:
sound: because sound we can hear it, when someone says something to you, you can hear it but you cannot you cannot touch it
100 POINTS
Complete the sentence: Combustion heating and cooling appliances are sources of
and often found in basements.
O asbestos
O radon gas
O tobacco smoke
O carbon monoxide
Answer:
Carbon monixide
Explanation:
Right answer
Answer:
carbon monoxide is the awnser
Explanation:
When I took this quiz that was the right awnser.
Who was the first to really study genetics and nicknamed the father of genetics?.
Answer:
Gregor Mendel
Explanation:
Hope this helps:)....if not then sorry for wasting you time and may God bless you:)
Explain the relationship between global warming and flood.
Answer: As warmer tempertures cause more water to evaporate from the land and oceans, changes in the size and frequency of heavy precipitation events may in turn affect the size and frequency of river flooding.
Based on your observations, which part of the radish plant controls the
plant’s phototropism? Support your answer.
Answer:
you are asked to write your laboratory report right?
Explanation:
we need to see the laboratory experiment to answer this question. But according to my search, the answer may be the following:
Stems in these plants exhibit positive phototropism and grow in the direction of a light source. Photoreceptors in plant cells detect light, and plant hormones, such as auxins, are directed to the side of the stem that is furthermost from the light.
sun-->sagebrush-->jackrabbits-->coyotes
What would happen to this ecosystem if the amount of rain increased? plsss tell me
The amount of sagebrush would increase, which would lead to an increased population of jackrabbits, as sagebrush their food source. As the amount of jackrabbits increase, it gets easier for coyotes to hunt for them which in return, increases their survival rate/population.
Which of the characteristics is common to both arthropods and annelids and suggests that the two groups shared common ancestry?.
Answer:
Body segmentation
Explanation:
Both arthropods and annelids have body segments, which serves as evidence for them being close evolutionary relatives.
Give one example of cation and anion?
Answer:
cation: sodium(Na⁺)
anion: sulfate(SO₄²⁻)
Explanation:
hope this helps pls rate and mark as brainliest.
Answer:
cation: calcium, potassium
anion: chloride, iodine
Explain why and how humans depend on photosynthesis for survival.
Help please! 3:46 4/5/2022 (American)
Answer:
because when plants do photosynthesis it take our co2 and gives us oxygen which we need to survive
In eukaryotic cells, where does the basal transcription apparatus bind?.
Answer:
Located immediately upstream of the eukaryotic promoter, DNA sequences to which the basal transcription apparatus binds. Regulatory promoter DNA sequence located immediately upstream of the core promoter that affects transcription; contain consensus sequences to which transcriptional regulator proteins bind.
Explanation:
Does this answer your question?
It’s acceptable if your conclusion does not support your hypothesis. true false
Answer:
True! Your hypothesis is a fancy way of saying it's a guess. Your conclusion could be the same or completely different.
Explanation:
Does this help you???
If your conclusion does not support your hypothesis. this is false as hypothesis means explanation.
If the statistics constantly do now no longer aid the speculation, then CLEARLY, the speculation is NOT an affordable clarification of what you're investigating. The speculation is rejected, and we look for a brand new interpretation, new speculation that helps the experimental statistics.
What happens when speculation fails?
When speculation fails, the primary issue you ought to do is look at the statistics closely. Then use your studies and statistics to decide a likely cause why the speculation changed into incorrect. Once you give you a cause your speculation can also additionally have failed, you could begin deliberating approaches to test your assumption.
Thus it is clear that if your conclusion does not support your hypothesis this is false.
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Does a kangaroo in hibernate, estivate, or migrate in cold weather?
Answer:
They hibernate in winter and usually breed in spring.
Explanation:
Which protist group produces much of the oxygen on earth?.
Enzymes are involved in the reactions,
Select one:
O a. Photosynthesis
O b. Neither Photosynthesis nor Cellular Respiration
O c. Cellular Respiration
O d. Both Photosynthesis and Cellular Respiration
Answer:
D.
Explanation:
•Specific enzymes catalyze each cellular reaction in cellular respiration. The main role of enzymes during the respiration reaction is to assist in transferring electrons from one molecule to another.
•The reactions of photosynthesis, and many other biological processes, are controlled by enzymes.
ENZYMES ARE REQUIRED FOR MOST OF THE CHEMICAL REACTIONS THAT OCCUR IN ORGANISMS
A sequence of dna that codes for a specific, detectable product, such as a protein or rna is called a
Gene is a sequence of DNA that codes for a specific, detectable product, such as a protein.
What is a Gene?
This is defined as the basic physical and functional unit of heredity and occupy a fixed position on a chromosome.
It is also the sequence of DNA that codes for a specific, detectable product, such as a protein or RNA.
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A sequence of DNA that codes for a specific, detectable product, such as a protein or RNA is called a Gene.
What do you mean by RNA?RNA may be defined as a single-stranded molecule that has a shorter chain of nucleotides that carries genetic information that is translated by ribosomes into various proteins necessary for cellular processes.
Gene is the sequence or stretch of the DNA which carries genetic information. It is the nucleotide sequence that can synthesize functional proteins or enzymes.
Therefore, a sequence of DNA that codes for a specific, detectable product, such as a protein or RNA is called a Gene.
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Hello people ~
Differentiate between biotic and abiotic components.
Non-living physical and chemical elements in the ecosystem are referred to as abiotic factors. Typically, abiotic resources are obtained from the lithosphere, hydrosphere, and atmosphere [e.g. water, aer, soil, sunlight, and minerals].
Biotic factors are organisms that are alive or were onse alive in an ecosystem. These are obtained from the biosphere and have the ability to reproduce [animals, birds, plants, fungi, and other identical organisms].
I am joyous to assist you at any time.
Question 8 of 10
A forest fire burns down all of the trees in a large forest. The animals that
lived in the trees are forced to move to other areas. What kind of disturbance
is this?
A. Seasonal
B. Catastrophic
C. Cyclical
O D. Small-scale
Pioneer species move into an area after which event? the formation of a climax community a disturbance that forms new land without soil a disturbance that clears away all plants the enrichment of soil by plants
Pioneer species move into an area after a disturbance that forms new land without soil.
Pioneer species are the first organisms to inhabit a region that has experienced a primary succession.
How do pioneer species arrive?
Primary succession begins in barren areas, such as on bare rock uncovered by a retreating glacier.
The first residents are lichens or plants that can survive in such an environment. Over hundreds of years these “pioneer species” transform the rock into soil that can support simple plants such as grasses.
Thus, Pioneer species move into an area after a disturbance that forms new land without soil.
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Answer: ( B ) - a disturbance that forms new land without soil
Explanation:
If there is a change in a squid's messenger RNA, will this change appear in its genetic material? Will it be inherited by its offspring?
If there is a change in a squid's messenger RNA, this change does not appear in its genetic material. This change neither will be inherited by its offspring.
What is messenger RNA?During gene transcription, a fragment of DNA called gene is used as template to generate a messenger RNA (mRNA).
Subsequently, this mRNA is used as a template to create a protein by a process known as translation.
The mRNA is a molecule that carries the genetic material from DNA to protein but this process does not modify the genetic material.
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Hello people ~
The formula of exponential population growth curve, is
(a) dN/dt = rN
(b) dt/dN rN
(c) dN/rN = dt
(d) rN/dN = dt
Answer:
The Formula for exponential population growth curve is dN/dt = rN. (option A)
Explanation:
Exponential growth is a function that grows or shrinks at a constant percent growth ratedN/dt= rN
Where,
dN = Change in no. of individuals in population.dt = Change in timeN = No. of individualsr = Per capita rate of increase.Please someone help me with this.
Match the muscles and their associations.
involuntary
voluntary
electrical nodes
tendons
digestive tract
arteries
extensors
Answer choice: Skeleta, smooth, cardiac
The associations are involuntary, digestive tract and arteries >> smooth; whereas voluntary, tendons, extensors >> skeletal and electrical nodes >> cardiac.
What are muscles?Muscles are a special type of tissue that has the ability to contract in response to a given stimulus.
There are different three types of muscle fibers: cardiac muscle, skeletal muscle and smooth muscle.
Cardiac muscle and smooth muscle are involuntary muscles, whereas skeletal muscle is a voluntary muscle.
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Answer:
Involuntary: Smooth
Voluntary: Skeletal
Electrical Nodes: Cardiac
Tendons: Skeletal
Digestive Tract: Smooth
Arteries: Smooth
Extensors: Skeletal
Explanation:
Types of muscles. The three kinds of muscle in the body are the skeletal muscle, the smooth muscle, and the cardiac muscle. The skeletal muscles are attached to the bones and allow one to move at will. Because the skeletal muscles are mostly under your conscious control, they are sometimes called "voluntary" muscles. Smooth muscle lines the inside of such hollow organs as the digestive system, bladder, and arteries. Smooth muscles work automatically and are beyond your conscious control. They are referred to as "involuntary" muscles. Cardiac muscle is unique to the heart.
Although skeletal muscles seem to be under your control, a lot happens of which you are not aware. First of all, your posture, even when asleep, is controlled by skeletal muscles without your paying much attention to it. Your mouth, for instance, would flap open if your brain did not maintain a certain tension in your chewing muscles all the time. Your chin would spend a lot of time resting on your chest if your neck muscles didn't hold your head up. And your movements of all kinds would be pitifully awkward if your cerebellum did not coordinate all the muscles necessary to perform even the simplest actions. Just scratching your nose, for instance, requires dozens of muscles to move in exactly the right way at exactly the right time. You are truly "fearfully and wonderfully made."
We will now take a closer look at the other two types of muscles. Skeletal muscles can be attached to other muscles or to bones either directly or by a thin band of connective tissue called a tendon. Do not confuse this tendon with a ligament, which connects bone to bone and not muscle to bone. Two good examples of tendons can be found in the back of your legs. One is the Achilles tendon which attaches the calf muscle in the lower back part of your leg to your heel. The other tendons are on the back side of your knee, called the hamstrings. They serve to attach muscles in the upper back part of the leg to the bones of the lower leg and flex your knee. Locate these structures on your own leg.
The point at which a muscle is attached to the less movable part of the body is called the origin. The point at which a muscle is attached to the more movable part of the body is called the insertion. The biceps muscle of your upper arm is a good example of both these points. The biceps has its origin in your shoulder and its insertion in the bones of the forearm.
Skeletal muscles differ relative to their effect on the body. Those muscles that bend a joint are called flexors, and those muscles that straighten a joint are called extensors. Muscles always work in pairs, one opposing the action of the other. For instance, the upper arm has biceps on the front, which serves as the flexor. The muscle that opposes this motion and serves as the extensor of the forearm is the triceps, which is located on the back of the upper arm. When one muscle contracts, the other must relax. Study the diagram and then see if you can feel the alternating contraction of the biceps and triceps in your own upper arm as you bend and straighten it.
You should be careful to get enough exercise to keep your muscles in good shape. Muscles will grow larger and have better tone, which means they will always be slightly contracted, if they are used. If a person is lazy or is confined to a bed or wheelchair for a prolonged period of time, the muscles not being used will become smaller and lose their tone. This condition is called atrophy. A muscle atrophies at a rate of about 1% a day, so that it will lose a full third of its strength after a month of disuse. Disuse also causes bones to soften by losing their calcium. "Use it or lose it" is a solid maxim of physiology.
Vitamin D regulates Multiple Choice blood calcium levels. Fluid balance. Oxidation and reduction reactions. Energy metabolism
Vitamin D help to regulate blood calcium levels.
What is Vitamin D?Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and many other biological effects. In humans, the most important compounds in this group are vitamin D₃ and vitamin D₂. .
It help to absorb calcium and potassium in the body.
Therefore, Vitamin D help to regulate blood calcium levels
give 5 causes of diseases or infectious diseases
Phase of the moon where only a very small part of the lit surface is seen from Earth.
O Gibbous
O Quarter
O Crescent
O Full
Answer:
quarter, if i am correct. i am pretty sure that the crescent is just a little bigger.
The phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.
What is the phase of the moon ?Lunar phase is the phase of moon which is viewed from the earth, the lunar phase is also known as moon phase is a shape of moon's directly sunlit portion and it can be expressed quantitatively.The current moon phase for today is the new moon phase.
The moon is known as earth's only natural satellite and combinedly with earth it forms the earth-moon satellite system.
The size of moon is one quarter of earth in diameter. It is fifth largest satellite in the solar system.
The distance of moon from earth is 384,400 km. The radius of moon is 1,737,4 km. The gravity of moon is 1.62 m/sec^2.
The total surface area of moon is 3.793×10^7 km square and it's surface pressure is 10^-7 Pascal.There are total 8 phase of moon and these are new moon, first quarter, waxing gibbous, third quarter and waning crescent.
Therefore the phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.
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