Answer:
ionosphere
Explanation:
The aurora borealis is caused by the ionosphere which is a part of the thermosphere
what are the features of thermosphere ?
The thermosphere is one of the atmospheric layers of Earth which is the top layer as it sits on top of the other layers, and it also contact with the other exosphere which make a transitional zone between Earth's atmosphere and space.
the so called thermosphere is due to high temperature in it, reaching up to 1,000 C degrees, The temperature rises with elevation.
here The atmospheric layer is hot due to presence of nitrogen and oxygen which absorb the solar radiation and then release thermal radiation.
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When a sperm cell and egg cell join together what is it called?
1. sperm
2. Gamete
3. baby
4. Zygote
Answer:
4. Zygote is the answer
Answer:
Zygote
Explanation:
During fertialization a sperm cell and an egg cell come together to form a zygote.
How could a rise of l m in the sea level directly affect humans?
A. Communities that depend on glacial run-off would face severe water shortages.
B. Residents of low-lying Islands in the Indian Ocean would be forced to abandon their homes.
C. Expansion of fertile floodplains along the Nile would make more land suitable for agriculture.
D. Residents along the U.S. east coast would become less vulnerable to storm surges and flooding.
How have trees adapted to survive through the cold winter months?
Answer:
Adaption
Explanation:
Adaptations. Deciduous plants handle the lack of water by shedding their leaves, which tend to evaporate water into the air. During cold winter months, most deciduous plants drop their leaves and go dormant. Plants may hold onto dead leaves for insulation, or use deep snow like a blanket to protect against the cold.
what is the complementary DNA for TACGGCTTA
Answer: ATG CCG AAT
Explanation: In complementary DNA, you will want to flip the letters.
A=T
T=A
G=C
C=G
A will never match with C or G. Vice versa.
PLEASE HELP I NEED HELP WITH THESE TWO QUESTIONS
Chromosomes are distributed randomly during anaphase I. What are the possible chromosome combinations in the two daughter cells? (Use DG, LG, DP, and
How does the random lining up of homologous chromosome in Metaphase 1 contribute to Genetic Variation?
IF YOU WOULD HELP ME IN ONE OF THEM IT WOULD BE GREATLY APPRECIATED
Question:
Chromosomes are distributed randomly during anaphase I. What are the possible chromosome combinations in the two daughter cells? (Use the following abbreviations for the chromosomes. Dark green -> DG; Light green -> LG; Dark purple-> DP, Light purple -> LP)
How does the random lining up of the homologous chromosome in Metaphase 1 contribute to Genetic Variation?
Answer:
Possible chromosome combinations:
LG,LP + DG,DP LG,DP + DG,LPThe random arrangement of tetrads is different in every cell going through the meiosis process. Any chromosome of the homologous pair might face any of the poles and then migrate to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is different and depends on the chromosomes that form that cell.
Explanation:
1) During meiosis, organisms can produce at least four different gametes. Anaphase occurs after the prophase where crossing-over has occurred. During anaphase 1, the homologous chromosomes separate, migrating to different poles.
The possible chromosome combinations in the two daughter cells of the exposed example are
LG,LP + DG,DP LG,DP + DG,LP2) Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.
During metaphase I, homologous pairs together migrate to the equatorial plane, where they randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating. Any chromosome of the homologous pair might face any of the poles and then migrate to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. This random order in the equatorial plane is what introduces variation into the gametes. It is almost impossible that two gametes resulting from meiosis will get the same genetic charge.
Possible chromosome combinations:
LG,LP + DG,DP LG,DP + DG,LP
The random arrangement of tetrads is different in every cell browsing the meiosis process. Any chromosome of the homologous pair might face any of the poles and then migrate to it.
Anaphase I
Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the amount of variations in each cell is different and depends on the chromosomes that form that cell.
During meiosis, organisms can produce a minimum of four different gametes. Anaphase occurs after the prophase where crossing-over has occurred. During anaphase 1, the homologous chromosomes separate, migrating to different poles.
The possible chromosome combinations within the two daughter cells of the exposed example are-
LG,LP + DG,DP LG,DP + DG,LP
Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.
Metaphase I
During metaphase I, homologous pairs together migrate to the equatorial plane, where they randomly aline with their kinetochores facing opposite poles.
The random arrangement of tetrads is different in every cell browsing the meiosis process. There is no equal alinement between the two cells.
When tetrads aline within the equatorial plane, there's no predetermined order for every one of the homologous chromosomes of every tetrad to face one among the poles then migrate to it while separating.
Any chromosome of the homologous pair might face any of the poles then migrate thereto. Each of the chromosomes has two possibilities for orientation at the plane.
When the new haploid cells are formed, the amount of variations in each cell is additionally different and depends on the chromosomes that form that cell.
This random order within the equatorial plane is what introduces variation into the gametes. It is almost impossible that two gametes resulting from meiosis will get an equivalent genetic charge.
Therefore,the combinations of two daughter cells LG,LP + DG,DP and LG,DP + DG,LP.
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WILL GIVE BRAINLIEST IF RIGHT !
Identify the 2 constructive processes from the list below.
A) A river wears away the land creating a canyon.
B) Over time a mountains top becomes less jagged and more rounded.
C) A volcano erupts and lava flows down its sides.
D) Silt is deposited at the mouth of a river.
Answer:
C, D.
Explanation:
C: The flowing lava creates extra rock. For example, entire islands are formed via this process of volcanos erupting, lava cooling, repeat.
D: Silt from erosion (erosion itself is considered destructive, but the resulting silt can turn into something constructive.) can build up entire mounds or mountains over time.
List the 8 characteristics of life all living organisms have.
Answer:
They need water, they need food, They die at some point of life, They have atleast one cell,
Explanation:
HELP!!! I WILL GIVE BRAINLIEST!!!
Answer:
option A is the right answer for this que
What is the molecule in this image?
A. A carbohydrate
B. A lipid
C. A protein
Benita is studying the erosion of soil after a heavy rainfall. She observes that rainwater washes away very little soil from areas under large trees. Which of the following best explains why?
Answer:
The roots of the trees help to hold the soil in place.
Explanation:
Answer:
The roots of the trees help to hold the soil in place.
Explanation:
What shares ¼ of its genes with humans?
if glucose is in higher concentration outside the cell than inside, but the plasma membrane and other surface layers of the cell do not allow glucose to pass through, which is the most likely type of transport for glucose? and Why?
a simple diffusion
b Osmosis
c Facilitated diffusion via a gated channel
d Facilitated diffusion via an aquaporin
e Facilitated diffusion via an ion channel
Answer:
a
Explanation:
ok ok as you were saying you said it is hard for the glucose concentration in the body this also had to go out so but the plasma membranes and other surfaces layers cell layers of the layer of the soil do not allow to close glucose to pass through which is most likely type of transport type of transport for kids and you still said why it is because it gives energy to the body
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Which type of precipitation is most likely to occur when both air and cloud temperatures are above freezing?
A) Rain
B) Snow
C) Hail
D) Sleet
Answer:
it should be A or rain to be specific
Answer:
rain
Explanation:
If the ar is above freezing, the precipitation will most likely be rain. If the air is below freezing, the precipitation will most likely be snow. When air temperature is only a few degrees above freezing, precipitation may fall as sleet. Hail is most commonly formed within the cumulonimbus clouds of thunderstorms.
Other minerals, such as ___________________, are needed in small amounts.
Answer:
iron, zinc, iodine, fluoride, selenium and copper.
pls help me its due soon
Answer:
The urine forming in each kidney eventually enters a long tube,the ureter which connects the kidney with the urinary bladder. Urine is stored in the urinary bladder until the pressure of the expanded bladder leads to the urge to pass it out through the urethra.
Why do hunters kill young deers instead of the old?
why does the illumination of the moons surface appear to change when viewed from earth even through the sun continuously illuminates half of the moon?
Answer:The revolution of the Moon around the Earth makes the Moon appear as if it is changing shape in the sky. This is caused by the different angles from which we see the bright part of the Moon's surface. These are called "phases" of the Moon.
Explanation:
5. What was the effect of the English policy that gave British officials the right to search without cause, warehouses and ships belonging to colorist
Parliament passed additional policies to protect the colonists' property from seizure.
Parlament enforced the policies as a method to provide for defense of the colonists.
Colorists supported the policy as necessary to discourage taxes on goods.
Colorists protested the policy as an abuse of their individual rights.
Answer:
c
Explanation:
c
Colorists supported the policy as necessary to discourage taxes on goods was the effect of the English policy that gave British officials the right to search without cause, warehouses and ships belonging to colorist.
What are the roles of colorists?A colorist is a film industry professional who creates a visual color story for a production. In the post-production stage of the film making process, a colorist can use color editing software to add the desired hues, tones and color palates to an edited film.
They also work closely with editors to ensure they use similar software. Colorists have specific software package requirements because most colorists use Adobe products, specifically After Effects and Premiere Pro.
A Colorist is responsible for designing the color scheme of a film in order to achieve a specific mood or visual style. Colorists work closely with a film's director and director of photography to determine what color palette will best serve the story.
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DUE TODAY helppp pleaswee
Why is it necessary for the cell to grow and duplicate its DNA before the start of meiosis?
Answer:
Cells will duplicate or copy their DNA right before they divide. The process of cell division is called mitosis. Since the cell is dividing it needs two copies of its DNA - one is kept by the parent cell and the other is passed to the daughter cell. ... So this process of duplicating DNA is very important.
Which has the greater volume?
A. wood
B. white block
C. equal
ws
Answer:
wood
Explanation:
Organisms can adapt during their lifetime.
Correct the sentence
Answer:
Adaptions acquired by individuals during their lifetime .
Viruses replicate the host cell
True, viruses replicate the host cell
False, viruses replicate the virus, inside the host cell
Answer: False viruses replicate the virus inside the cell so that it will overfill and burst and let the viruses infect other cells.
I deserve brainliest after that.
Choose the arrow that shows the direction H+ will diffuse.
Answer:
the answer would be the arrow that is pointing down.
Explanation:
Remember that molecules and ions will move to a place of lower concentration from a place of higher concentration.
Answer:
its the arrow pointing down
Explanation:
i did trhe gizmo
How are root cutting prepared
What is a mutagen?
a environmental factors that cause mutations
b inherited mutations
C factor that immediately kills the organism
d cancer-causing agent
Guys pls help me!!!!
Answer:
1. one serving
2. 55 grams
3. 55 grams
4. 0g
5. ?
Plz help fast! If an earthquake that started on land moves to the ocean what would happen to its speed?
Answer:
The Pacific Plate moves northwestward past the North American Plate along the San Andreas.
Explanation:
The ability to curl the tongue in dominant to the inability to do so. If Eric (heterozygous tongue curler) marries Brandy (also heterozygous) what are the predicted GTs and PTs of the offspring?
Answer:
Genotype = 1CC: 2Cc: 1cc
Phenotype = 3 tongue curler : 1 non-tongue curler
Explanation:
This question involves a single gene that codes for the ability or not to curl the tongue. The ability to curl the tongue (C) is dominant to the inability to do so (c). This means that a heterozygote will be able to curl his/her tongue.
According to this question, If Eric, who is a heterozygous tongue curler (Cc) marries Brandy who is also heterozygous (Cc) i.e. Cc × Cc, the following gametes will be produced by each parent: C and c.
Using these gametes in a punnet square (see attached image), the predicted genotype of the offspring is 1CC: 2Cc: 1cc while the predicted phenotype is 3 tongue curler : 1 non-tongue curler.
Natural selection is a mechanism for evolution.
O True
O False
true
Explanation:
Its true because something has to die for others to thrive.
