Answer:
a
Explanation:
Question 4 of 25
Which event occurs when an atom undergoes nuclear fission?
A. Its nucleus absorbs energy.
B. Its nucleus combines with another nucleus.
C. Its nucleus breaks apart.
D. Its nucleus gains mass.
SUBMIT
According to the context, its nucleus breaks apart is an event that occurs when an atom undergoes nuclear fission.
What is nuclear fission?It is a reaction by which the nucleus of an atom is divided into two or more smaller nuclei, that is, the nucleus of an atom is split.
Through this reaction, large amounts of energy are obtained, emitting neutrons, gamma rays and large amounts of heat in the process.
Therefore, we can conclude that according to the context, its nucleus breaks apart is an event that occurs when an atom undergoes nuclear fission.
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Answer: Its nucleus releases energy.
Explanation: If you have different options for answers. This might be the one you actually need!
Type
blood is the universal donor.
Type
blood is the universal recipient.
Answer:
o negative
ab positive
......
Answer:
TYPE O
Explanation:
Explore the three different types of ground tissue cells in detail and complete the chart below.
Answer:
parenchyma have primary cell walls (thin) and are unspecialized and metabolically active (photosynthesis, respiration)
collenchyma have primary cell walls (unevenly thick) which provide a level of structural support in areas of high growth, they are alive so have a protoplast
sclerenchyma have secondary cell walls which means they have lignin and are thick, they are functionally dead at maturity so provide support in areas that are done growing and are involved in transport of water
Explanation:
4.
Which of the following is not a negative impact of invasive species?
A.
There is decreased competition with native species.
B.
Native species are crowded out or replaced.
C.
The carrying capacity of the habitat is decreased.
D.
There is increased competition with native species
What could explain the curve in this population growth graph?an unlimited food supply
a natural disaster
a population crash
a reduction in predators
Answer:D
Explanation:
The curve in this population growth graph indicates an unlimited food supply, which is the first option, as an unlimited food supply could explain a steady or exponential increase in population size without a curve.
What is population growth?Population growth is a measure of the change in population size over time, and it is affected by many factors, including the availability of resources, predation, disease, natural disasters, and human activities. The shape of a population growth graph can provide important insights into the underlying factors that are influencing the population. An unlimited food supply would allow a population to grow without any limitations. In this scenario, the population would experience a steady or exponential increase in size, and the graph would show a straight line or a curve that rises steeply. However, even with unlimited food, other factors, such as competition for resources, predation, or disease, may eventually limit the population's growth.
Hence, the curve in this population growth graph indicates an unlimited food supply, which is the first option.
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HELPPP PLEASEEEE
All of the following process relates to mitosis except a. ) growth of an organism b) repair of tissue c) production of gametes d) asexual reproduction
Answer:
search it up
Explanation:
.
The result of mitosis is
Answer:
2 daughter cells
Explanation:
Answer:
A form of cell division, mitosis results in two daughter cells who are identical. They're genetically identical to the original cell from where they came. Those details are important!
Hope this helps ♥ Brainliest appreciated!! I'm trying to reach my goal :]
What are your top 3 favorite lifeforms and why? What adaptations help these living things to survive in their environment?
please help
I will give brainliest for the best answer
Answer:
so it's saying what are your favorite animals or plants or living things and how do they survive
hi!! here's ur answer!!
my top 3 favourite lifeforms are- polar bears,tigers and ducks. :D
1) polar bears- are well adapted for survival in the Arctic. Their adaptations include: a white appearance - as camouflage from prey on the snow and ice. thick layers of fat and fur - for insulation against the cold.
2) tigers- striped coat helps them blend in well with the sunlight filtering through the treetops to the jungle floor. The tiger's seamless camouflage to their surroundings is enhanced because the striping also helps break up their body shape, making them difficult to detect for unsuspecting prey.
3) ducks- possess an oily coating that keeps water from settling in their feathers, helping them in staying dry and keeping themselves warm. Their webbed feet, designed like paddles, provide more surface area to push against the water and help them swim.
hope it helps:)
Describe the role of microtubules in mitosis. Why must
microtubules both assemble and disassemble for mitosis to occur properly?
Answer:
The correct answer is - helps in separating the chromosomes and pull them to opposite poles.
Explanation:
Microtubules have a key role in forming the spindle apparatus or mitotic spindle that help the chromosomes to split during metaphase and anaphase later.
The kinetochore microtubules pull the chromatids to the poles back and forth so they can align along the equator of the cell, This back and forth movement takes place by the assembling and disassembling of microtubules.
Answer:
helps in separating the chromosomes and pull them to opposite poles.
Explanation:
are humans multicelluar organism or unicellular organism
Answer:
multicellular
Explanation:
What is the complementary strand of DNA for the polymer ATTCGCAT?
O TAACGCTA
O TAAGCGTA
O ATTCGCAT
O CGGATACG
Answer:
TAAGCGTA
Explanation:
If two O blood group parents get married what is the probabilty of getting a baby with A blood group?
A. 100%
B. 0%
C.50%
D. 25%
Answer:
B. 0%
Explanation:
It is nearly impossible for two O blood parents to have a baby with an A blood type. This is due to no A or B blood to combine with in the gene pool.
Corn is a popular feed for pigs because it is high in carbohydrates. However, it has a very low level of the amino acid lysine, so farmers usually add high-lysine feeds to the corn. Which statement BEST explains why lysine levels in pig feed are important? what is the answer
Answer:
a diet high in carbs and low in lysine means the body cannot convert the energy into muscle tissue, and instead converts it to fat.
not enough lysene= fatty hogs, which are reduced in value at market
I need this ASAP please i might fail
Surface water currents are important because they_________
Answer:
Surface currents are extremely important because they distribute heat around the planet and are a major factor influencing climate around the globe.
Explanation:
Ocean currents flow like vast rivers, sweeping along predictable paths. Some ocean currents flow at the surface; others flow deep within water. Some currents flow for short distances; others cross entire ocean basins and even circle the globe.
By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places.Major surface ocean currents in the open ocean, however, are set in motion by the wind, which drags on the surface of the water as it blows. The water starts flowing in the same direction as the wind.
But currents do not simply track the wind. Other things, including the shape of the coastline and the seafloor, and most importantly the rotation of the Earth, influence the path of surface currents.
Which statement best describes the hydrosphere?
A it includes only the water on the Earth's surface
B It includes only freshwater on the Earth's surface
C It includes water on the Earth's surface, underground, and in the atmosphere
D It includes fresh and salt water on the Earth's surface and underground
Answer: C
Explanation:
Need help with the question
Answer:
Plant and tree roots help anchor soil and rocks in place so that they don't begin to flow. Make sure to keep your plants well cared-for.
Explanation:
when you plant trees the environment won't be that dry so when it rains it will not lansliled much and the trees will give support.
which structure carries out anaerobic glycolysis
Answer:
mitochondria
Explanation:
Note first that anaerobic glycolysis is far more costly in energy than is the burning of glucose that is carried out by the mitochondria. Anaerobic glycolysis yields two ATP molecules for each glucose molecule metabolized…oxidation of glucose in the mitochondrion would yield an additional 34 ATP molecules
Do different cells have different genes?
Answer:
(:
Explanation:
Different cells in a multicellular organism may express very different sets of genes, even though they contain the same DNA.
the pores in leaves that are responsible for gas exchange and water release are called? chloroplants ,roots, guard cells, or stomata
Hey guys I need help with this question if you would be nice to answer it,it would be a pleasure pls do not post any links to the answers because one guy already did this to me and one letter Im not that stpid to know someone doesnt post a full file for answers so please do not do this anyways get that out of the way here is my question:1. What characteristics of these areas make them most susceptible to landslides? Use evidence from the map to construct your argument.
Answer:
Usually mudslides are caused by torrential rain storms and elevations like mountains.
when it rains or storms for weeks on end the water that is produced builds, mixes with soil and eventually gravity takes over, creating a strong force.
On the map, there are mountains that surround the villages and populations.
FIRST CORRECT GETS BRAINLIEST
Just ask 3-5 questions about climate change
Is the Sun causing global warming?
Is there a possible way to stop climate change?
Do scientists agree on climate change?
If there is a possible way to stop climate change, why don't we change it?
What do volcanoes have to do with climate change?
Answer:
What is the greenhouse effect?
Is it too late to prevent climate change?
What causes climate change?
Has the earth continued to warm since 1998?
Is it the ozone hole that causes climate change?
Explain the three mechanism for how activated transcription factors can stimulate transcription through modification of the chromatin structure.
Random thought, should fingers have FINGERS?
A) Of course!
B) What the heck is wrong with you, NO.
Premed students are often traumatized by studying for their MCAT exam, which historically was always taken at the end of their Junior year in college. Now, many medical schools desire a meaningful gap year between completion of an undergrad degree and entrance to medical school so that incoming students have some sort of life-time experience either working, doing research, charity outreach, or traveling during that time. As a result, modern pre-med students often wait to study for their MCAT until after they graduate without realizing that it means they will end up taking two gap years, not one. Students who complete a basics genetic course should be confident with their knowledge about DNA, RNA, and proteins, along with how to solve basic inheritance problems, which will help them on their MCAT exams. Introductory Genetics helps to reinforce concepts taught fleetingly in Introductory Biology.
1. Jiro is told that a bacterium contains a single DNA chromosome containing 15% guanine and then is asked to decide if the organism is âGCâ rich or not (>50% G-C content = 'rich')). With full confidence, Jiro responds:
A.Heck no! The strand has a GC content of 30%.
B.Heck yeah! The strand has a GC content of 70%.
C.Heck no! The strand has a GC content of 15%.
D.It contains exactly 50% GC content.
2. If Marisol isolates 15% guanine from a strand of DNA, she can say with full confidence that:
A.the strand is made up of 70% pyrimidines.
B.the strand is made up of 30% pyrimidines.
C. the strand is made up of 50% pyrimidines and 50% purines.
D.the strand is made up of 70% purines.
3. Jayson is asked if a strand of DNA that is GC-rich will be harder to separate than one that is GC-poor. He responds with full confidence:
A. No!
B.Yes!
C. This question is irrelevant since double-stranded DNA is always easy to separate due to the hydrogen bonds that hold them together.
D.After 150 years of research into DNA, no one knows the true answer to this question.
Answer:
1. A
2. C
3. B
Explanation:
1. The DNA here has a Guanine(G) content of 15% and as G is equal to C,
[tex]$GC=G+C$[/tex]
= 15% + 15%
= 30%
As the GC content is less than 50 % , so the DNA is not a GC rich DNA. Therefore, for a DNA to be GC rich in content, G+C should be more than 50%.
Therefore the correct option is (A), The strand has a GC content of 30%.
2. With a content of 15% Guanine, we calculate the proportions of the four bases. They are :
[tex]$A+T=G+C$[/tex] and [tex]$A=T, G=C$[/tex]
∴ [tex]$A+T=15\% +15\%$[/tex]
[tex]$=30\%$[/tex]
So when we substract 30% from 100% , we get 70%. Now this 70% is then distributed in the equal proportions for [tex]$A$[/tex] and [tex]$T$[/tex].
Therefore, we have:
[tex]$A=30\%, T=35\%, G=15\%$[/tex] and [tex]$C=15\%$[/tex]
Therefore we calculate the content of purines [tex]$(A,G)$[/tex] and pyrimidines [tex]$(C,T)$[/tex].
Purine content : [tex]$A+G = 35\% + 15\%$[/tex]
[tex]$=50\%$[/tex]
Pyrimidine content : [tex]$C+T=15\%+35\%$[/tex]
[tex]$=50\%$[/tex]
Therefore, the correct option is (C).
3. Yes, the GC rich strand of the DNA is more stable the a GC low content DNA. But this stability is not due to the hydrogen bonds, it is mainly due to the stacking interaction known as base stacking.
So the correct option is (B).
Help its due soon all help is appreciated
it would be 100% preferably 1 if you count phenotype
After plants first moved to land, what happened?
A.
Plants evolved into multicellular organisms.
B.
Adaptive radiation formed many new land plant species.
C.
Photosynthesis evolved as a way to produce energy.
D.
They adapted by developing cuticles.
Answer: B. Adaptive radiation formed many new land plant species
Explanation:
After plant first moved to land adaptive radiation formed many new land species
What is adaptive radiation?"Adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into new species due to change in the environment."The species adapt themselves to varied habitat in order to survive and the number of species increases.What is species?"It is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding."Hence, the correct option is B. Adaptive radiation formed many new land plant species.
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What is the body's first line of defense against infection by foreign organisms? antibodies lymph nodes white blood cells the skin
Answer:
White blood cells
Answer:not white blood cells
Explanation:
Assume these are the demographics of a small country in Asia:
1,989,897 ages 0-14
2,000,143 ages 14-45
498,251 ages 46 and older.
Would you expect the population of this country to increase, decrease, or remain stable in 20
years? Explain.
Answer:
Increases.
Explanation:
The population of the country is increases in the next 20 years because more number of children are born. As we can see the data, there are 498,251 people who will die in the next 20 years but at the same time about 2000000 people are born so less people are removed from the population while on the other hand, more number of people are added to the population which definitely increases the population of the country.
Give the types of bacteria.