A. Chromatin is the uncoiled, stringy form of DNA in the nucleus of a cell.
What is chromatin?It is made up of DNA molecules and associated proteins, such as histones, that help to package and organize the DNA into a more compact structure. Chromatin can take on different forms, ranging from loose and loosely coiled to tightly packed, depending on the stage of the cell cycle and the specific needs of the cell.
When a cell is preparing to divide, the chromatin condenses and forms distinct structures called chromosomes, which can be visualized under a microscope. Chromosomes contain the genetic information that is passed from one generation to the next.
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How many reactions that occur in kreb cycle transfer electrons from substrate to an electron acccepting enzyme
Answer:
Four reactions that occur in kreb cycle transfer electrons from substrate to an electron accepting enzyme.
Explanation:
There is four such a response in which electron is transported from substrate to electron-allowing enzyme. In three of those, NAD+ is decreased to NADH and in one FAD decreases to FADH2. The TCA cycle is likewise recognized as the Krebs cycle after the signature of English biochemist Hans Kreb who illustrated the pathway in the 1930s.
What do contour lines that are farther apart represent?
I need help plz !!!!!!!!
Answer:
ur correct its measured in A
Answer:
I believe its A for Amperes
Explanation:
When the trading of equivalent sections of DNA between homologous chromosomes occurs during crossing over, it is called:
A. reciprocal exchange.
B. chromosomal exchange.
C. allele exchange.
D. similar crossing-over.
Answer:
chromosomal exchange i hope it helps you
what happans to DNA inside the necleus before meiosis begins?
Answer:
Before mitosis begins, the cell has already made new copies of each of its chromosomes. However, these new copies remain attached to the original chromosome. A dividing cell must be able to pull the copied chromosomes apart from the original copies, which is how the DNA is evenly divided when one cell splits into two.
Explanation:
I looked it up
2. What is the role of wax impressions, and/or plaster casts, of teeth in forensic odontology
Answer:
to help mold or move the teeth
Explanation:
when you put a piece of wax on a pencil it miles to what the pencil shape is so the impression is either a vaneer or just mold of your teeth
Look at the diagram of the male reproductive system. Name the parts
Answer:
Explanation:
مرحبًا ، أود أن أحاول مساعدتك في عملك المدرسي. إذا كنت تستطيع أن تشرح أكثر فأنا أقدر ذلك.
The diagram of the male reproductive system. The parts names are 1. prostate gland, 2. Pe.nis, 3. Urethra, 4. Vas deference, 5. testis, 6. scrotum .
The biological process of creating offspring of the same sort is known as reproduction. It is one of the critical mechanisms that ensures the survival of the species generation after generation.
The testes, scrotum, spermatic ducts, male accessory glands, and pe.nis comprise the male reproductive system. All of these organs collaborate to make sperm, the male gamete, male sex hormones, and other semen components.
Pe.nis: It refers to the male genitalia. It consists of three cylindrical chambers filled with erectile tissue. The two larger ones, the corpora cavernosa, are side by side, and the third is the sinus, called the corpus spongiosum, which covers the urethra.
Scrotum: It is a thick skin sac that protects and surrounds the testicles. It also regulates the temperature of the testes, which must be slightly lower than body temperature in order to produce appropriate sperm.
Testes: In humans, there are two testes. The testes are located outside the body in a pouch known as the scrotum. They have oval bodies that are 4 to 5 cm long and 2 to 3 cm wide.
Male sex accessory ducts are known as vas deferens.
Urethra: It is a tube-like structure that connects the urine bladder and urinary meatus.
The male accessory glands produce fluid that feeds the sperm. It is known as seminal plasma. This fluid contains a lot of fructose, calcium, and enzymes. It is the largest volume of semen from which the sperm is released during ejaculation.
Thus, The parts names are 1. prostate gland 2. Pe.nis 3. Urethra 4. Vas deference 5. testis 6. scrotum .
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Which choice shows the order in which primary succession takes place?
F. grass--soil - lichensrock
G. bare rock-lichens-grass-trees
H. lichens-bare rock-grass-soil
I. bare rock-soil -lichens-grass
Answer:
G. bare rock, lichens, grass, trees
Explanation:
The 6 steps of primary succession are;
I - bare rocks
II - pioneers (mosses, lichen, algae, fungi)
III - annual herbaceous plants
IV - perennial herbaceous plants and grasses
V - shrubs
VI - shade intolerant trees
VII - shade tolerant trees.
I would appreciate brainliest, if not that's ok!
Answer:
why did u answer efhe9udghewuidsgweiudfghdsuhfg
Explanation:
How is a spark from touching a doorknob the same as a bolt of lightning
Explanation:
That little spark you get when you touch the doorknob is essentially a miniature lightning bolt. When rain clouds move through the air, they build up positive and negative electric charges (Figure 7). So clouds have static electricity too! And when enough charge builds up, electric charges jump between the cloud and the ground.
Hope this helps you get your answer, but I'm sorry if it doesn't I did my best to sum it up as quickly and simple as I could for you.
Which statement best compares the aorta and the pulmonary vein?
O Both structures control the flow of blood.
O Both structures are involved in transporting oxygenated blood.
O Both structures separate the left and right atrium.
O Both structures carry plasma back into general circulation.
Answer:
Both structures are involved in transporting oxygenated blood.
Explanation:
Edge 2021
Photochemical smog is the result of nitrogen and carbon, often from car exhaust, reacting in sunlight. Which describes something that would likely decrease the amount of smog over time?
A)
a decrease in gasoline prices
B)
an increase in the number of cars on the road
C)
a decrease in the price of cars
D)
an increase in cars that use gasoline efficiently
Answer:
D
Explanation:
decrease in prices will cause more driving which causes the smog
increase of cars on the road would cause more smog
decrease in car prices=more people buying cars to drive which causes more smog
What is the product of meiosis I?
Answer:
Meiosis I, a reductional division of two haploid cells produces offspring cells that are not genetically identical with the event of recombination. Haploid girl cells have half the original/parent cell chromosomes.
Explanation:
meiosis II, an equational or mitotic division, divides the haploid cells created in meiosis I to produce four identical daughter cells that ultimately form the male/female gametes (egg/sperm).
Here chromatids split in contrast to meiosis I when homologous chromosomes apart.
Which of the following is not a function of the skeletal system?
A.
provides a framework for the body
B.
provides protection for internal organs
C.
movement of bones
D.
production of new blood cells
Answer:
C
Explanation:
The skeleton relies upon the contraction and relaxation of muscles which are attached to bone in order to move. The muscular system is made up of three types of muscle, one of which is responsible for the movement of bone. To add to the confusion, the relationship between both muscles and bones is often lumped together as the musculoskeletal system, but to be sure, they are unique in their own ways.
In summary, bones can't move on their own, and therefore movement cannot be the skeletal system's function.
Puffins live in the Arctic. Penguins live in the Antarctic. Suggest reasons why puffins and penguins are both similar and different
Answer:
Puffins are not actually penguins! They are birds that look similar, but are not the same species. Puffins belong to a family of birds called Alcidae, while penguins belong to the family Spheniscidae; their wings evolved to support different functions.
Which has more steps to complete?
O meiosis
O mitosis
O osmosis
O neither
O No answer text provided.
Malaria is caused by plasmodium carried by _____.
mosquitoes
fungi
amoeba
flies
Answer:
mosquitosExplanation:
they carry plasmodium
What is the ultimate energy for your food web?
Answer:
The Sun I believe
Explanation:
Please help this question got me confused.
Plants and animals native to the temperate deciduous forest biome do all but what?
1. Hibernate
2. Suffer from humus in soil
3. Cooperate
4. Migrate
Answer:
2
Explanation:
There isnt much humus in soil in the deciduous biome
How can maintaining water resources promote a healthy ecosystem ? For APA report make it a long response pls
Answer: The main function of water is to propel plant growth; provide a permanent dwelling for species that live within it, or provide a temporary home or breeding ground for multiple amphibians, insects and other water-birthed organisms; and to provide the nutrients and minerals necessary to sustain physical life.
Explanation:
The zygote contains all the chromosomes with all the genes that were in the egg and in the sperm that fertilized the egg. What process ensures that each body cell has these same chromosomes with these same genes?
Answer:
Sexual reproduction
Explanation:
hope this helps
PLEASE HELP!!!
Which is an effect of environmental factors on natural selection?
A: the size of cattle increasing as a result of breeding practices
B: the shape of birds bills changing to adapt to the type of food available
C: the size of pinecones increasing to help keep squirrels from eating them
D: the markings of a non-venomous snake changing to look like those of a venomous snake
Answer:
Umm I would think c
Explanation:
what is a cell organelle that has the same function as the urinary bladder?
The cell organelle that has the same function as the urinary bladder is the lysosome.
What are lysosomes?This is a spherical sac-shaped cell organelle surrounded by a single membrane. (Unlike chloroplasts and mitochondrial membranes, which have two membranes.)
It contains hydrolytic digestive enzymes, which split molecules by the addition of water molecules. Autolysis/autophagy, which is the automatic discharge of digestive enzymes in a contained cell that destroys the entire cell, separates the digestive enzymes from other cell organelles.
Plant and animal cells both include lysosomes. The lysosome degrades or eliminates worn-out or damaged organelles. Waste management is something that serves the same purpose.
Therefore, the lysosome is a cell organelle that performs the same job as the urine bladder.
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A hemisphere experiences summer when _____________ .
A) it is tilted toward the Sun
B) it is tilted away from the Sun
Answer:
A
Explanation:
tilted towards sun....
5. How many pairs of chromosomes are there in each
human *body cell?
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
Explanation:
Describe the ways mutations can affect DNA and chromosomes.
The mutation affects DNA and chromosomes by changes in the sequence of DNA or changes in the gene present on the chromosome.
What is mutation?The mutation is a sudden change in the structure of chromosomes or DNA. The smaller mutation affects the nucleotide base in DNA, while the larger mutation affects the genes present on the chromosomes.
The substance which causes mutation is known as mutagens. Mutation can cause problems in growth and development and affects the functioning of the body. When changes occur in chromosomes or DNA, they cause changes in the protein. Due to this, a different kind of protein is produced.
The mutation is caused by the insertion, duplication, deletion, and substitutions of a DNA sequence. Thus, mutation can affect DNA and chromosome in many ways.
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HELPPPP
Why is it important to have range of tools that can measure all parts of the electromagnetic spectrum
This tiny slice of the universe, speckled with galaxies near and far, tells the story of galaxy evolution over cosmic time Among the 10,000 or so galaxies
pictured here are newborns, adolescents, adults and retirees Like looking through a vast collection of family photos, astronomers are poring over this
comprehensive image to see how galaxies grew up, matured, and aged
This portrait of our universe's history is called the Hubble Ultra Deep Field (or HUDF). It is a minuscule patch of sky first targeted by the Hubble Space
Telescope in 2002 and revisited over and over again since then. This version of the HUDF is extra special though It combines observations of the field
taken with Hubble's Advanced Camera for Surveys and the Wide Field Camera 3 from 2002 to 2012, providing one of the farthest views into the universe
we've ever seen Plus, it includes light not just from the visible part of the spectrum but from the invisible) infrared and ultraviolet ranges, too, giving us
different details of the story of how galaxies came to be
Infrared light lets us see the universe's youngest galaxies. These galaxies lie far far away from us, and as their light travels across the universe, it gets
stretched by the expansion of space Wavelengths of visible light grow longer becoming infrared light by the time it reaches us Combining Hubble's
observations of the HUDF in visible and infrared light a team of astronomers led by Garth Illingworth of the University of California identified more than
5,500 galaxies in a central portion of the field some so faint that they are just one ten-billionth the brightness of what the human eye can see Another
team headed by Richard Ellis of the California Institute of Technology (Caltech) used Hubble's infrared observations to find galaxies more than 13 billion
light-years away, when the universe was only about 400 million years old - or about three percent of its present age
Alternatively, to understand slightly older growing galaxies that are not so far away, observing in ultraviolet light is best The hottest and youngest stars
give off huge amounts of ultraviolet light making them easy to spot at those wavelengths of light Most recently, a team of astronomers led by Harry
Teplitz of Caltech used the ultraviolet-sensing abilities of Hubble's Wide Field Camera 3 to add the ultraviolet piece to this view of the HUDF With this
part of the galaxy evolution picture in hand, astronomers are investigating how galaxies grew through bursts of star formation and exactly where when
and how many stars formed over time
Because our atmosphere blocks or absorbs most infrared and ultraviolet light that reaches Earth only a telescope in space, like Hubble, can provide
such insights into the history of galaxies Without both infrared and ultraviolet light, the tale is incomplete.
Answer:
the inly question i understood ::::: Why is it important to have range of tools that can measure all parts of the electromagnetic spectrum
ans
Because the electromagnetic spectrum comprises different types of electromagnetic radiation (radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays), all of which have different wavelengths and require different tools to measure them.
Which of the following is part of the basis of a capitalist economic system?
a competition
C. coordination
b. conflict
d. exchange
Please select the best answer from the choices provided
A
B
ОООО
С
D
Answer:
I believe the answer is A competition sry if wrong
Explanation:
The following is part of the foundation of a capitalist economic system: the presence of competition in the market, which is present in Option A, as competition allows different businesses to thrive.
What is the capitalist economic system?In a capitalist economic system, the market is operated by the private sector or corporations for profit, such as factories and businesses, where the government plays a very minor role in regulating them, although different countries have different laws regarding this. Competition among businesses is fierce in the capitalist economic system, which leads to more work for employees, more innovation, and job creation.
Hence, the following is part of the foundation of a capitalist economic system: the presence of competition in the market, which is present in Option A, as competition allows different businesses to thrive.
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The cell is like a city. The many different parts (organelles) of a cell work together for the functioning of the whole cell. Explain how the cell is like a city (factory, school, etc.). Give one analogy of how the part of a factory, school, city, etc. compare to an organelle. Be sure to give your analogy and explain how the organelle compares to the your chosen part,
Answer:
=)
Explanation:
A cell is very much like a city and one example is like how cytoplasms are like factories because they break down and absorb energy and they hold the organelle
Can someone help me plz n ty
Please can I get some help on this? please?
1. If the ecosystem is balanced, which populations should be the largest? Which should be the smallest?
2. Why can the wolf be considered both a secondary consumer and a tertiary consumer?
3. If the original amount of energy found in the producer trophic level is 100 kcal how much is passed on to the primary consumer trophic level? How does this amount limit the number of members in the next higher level?
4. Analyze what would happen to this ecosystem if one of the primary consumers was removed from the ecosystem? What would happen if a new tertiary consumer such as a mountain lion came into the ecosystem? Describe how each level would be affected if each of these changes occurred.
Answer:
1. producers are the largest and consumers are the least
2. because wolves feed on both primary and secondary consumers
3. Only 10% of energy from each trophic level is passed on to the next; therefore, the energy passed to the primary consumer will be only 10 kcal.
4. disturbe,as we know that secondary consumers feed on primary consumers so if there is no primary consumers then all secondary consumers will die similarly all tertiary consumers will also die and life would be finish on the earth.
if a new tertiary consumer came into the ecosystem then it will create a problem as the number of primary and secondary consumer are same but the tertiary consumer are more so they will get less food and hence die
3 and 4 are help from others in brainly, good luck in your class