Answer:
C. the tonsils
Explanation:
Tonsils are clusters of lymphatic tissue under the mucous membrane lining of the nose, mouth, and throat. Lymphocytes and macrophages in the tonsils provide protection against foreign substances and pathogens that enter the body through the nose or mouth.
3. What causes genetic variation? Select all that apply.
asexual reproduction
crossing
over
mitosis
independent assortment
Answer:
Crossing over
Independent assortment
Ice Cream is 20*F and Root Beer is 55*F The Ice Cream cools the Root Beer Or The Root Beer melts the Ice Cream
Which of these describes variation within a species or population?
A population is defined as members of the same species living together in the same area and who are likely to breed with each other.
Evergreen trees have needle-like leaves
Rex rabbits can have one of 16 different colors of fur
Fish use gills to obtain oxygen from water
Answer:
Below
Explanation:
The answer is C, or Rex rabbits can have one of 16 different colors of fur
4. What is soil conservation?
Answer:
The prevention of loss in the most top layer of soil from the erosion or maybe prevention of deducted fertility
which of the following would be the best example of adaptive radiation, where a species evolves into different forms and fills different niches
Answer:
B
Explanation:
I think so
what are some ways in which humans may be influencing the evolution of mankind and other organisms
outline how the nephrons carry out their processes (4marks)
Which statement about the effects of natural events and human activities is true?
A.The environment is not usually affected by natural events
B.Human activities and natural events can damage the environment.,
C.Natural events always have a positive impact on the environment.,
D.All human activities change the environment in a negative way.
Answer:
B. Human activities and natural events can damage the environment.,
Explanation:
Human activities are those activities carried out by a human being. The environment is being degraded daily as a result of the activities of man as well as natural occurrences e.g earthquake, tsunami, wild fire etc.
Human activities also called anthropogenic activities that damage the environment include sewage pollution, burning of fossil fuels, oil spillage etc. Hence, according to this question, human activities and natural events can damage the environment.
CUAL ES LA CONCENTRACIÓN DE OXÍGENO EN EL AIRE EN LA PAZ (BOLIVIA) CARTAGENA, Y COLOMBIA
Answer:
La concentración de oxígeno tanto en La Paz (Bolivia), como en Cartagena y en Colombia es la misma. Lo que se modifica según las alturas a las que se encuentran esas ciudades es la presión del aire, que a mayor altura menor presión. Esto hace que haya menor cantidad de oxígeno disponible para nuestro cuerpo.
Explanation:
Se dice que a 3000 metros sobre el nivel del mar la disponibilidad de oxígeno para el cuerpo humano se reduce en un 30% aproximadamente, y a más 5000 metros al menos al 50%. Esto puede producir hipoxia, o falta de oxígeno en sangre. También se le llama mal de altura o soroche.
La respiración pulmonar se debe a un intercambio de gases y gracias a diferencias de presiones en el aire que inspiramos y en nuestro cuerpo y sangre.
En ciudades como La Paz, que se encuentra a más de 3000 metros sobre el nivel del mar, se suele encontrar en la sangre de las personas una menor saturación de oxígeno que en aquellas que viven en ciudades a altitudes cercanas al nivel del mar.
If a person wanted to learn more about the genetic material of plant and animal cells, where would they look? A) on the cell wall / B)inside the chloroplasts / C) in the nucleus / D) in the lysosomes
Answer:
c
Explanation:
for the genetic code is contained in the nucleus.
but this dose not apply to cells without a nucleus e.g. red blood cells...
If a person wanted to learn more about the genetic material of plant and animal cells, where would they look? A) on the cell wall / B)inside the chloroplasts / C) in the nucleus / D) in the lysosomes
Answer: (C in the nucleus)
btw K12 answer i got it right
What is an organism made of? Tell me your first thought!
Answer:
Your organs are made of tissue
Explanation:
Have a great day
What fossil fuel fueled the Industrial Revolution?
how is meiosis different from mitosis
Answer:
b) meiosis produces four
Explanation:
Mitosis produces two diploids (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell
—-PLEASE HELP QUESTION IS IN THE PICTURE—-
Answer: B is correct
Explanation:
Abby has blue eyes like her father. Where is the trait found? A Genes in the chromosomes in a nucleus Home B Nuclei in a gene in a chromosome C Chromosomes in a gene in cytoplasm D Cytoplasm in a chromosome in a vacuole
Answer:A
Explanation:lol
how long you survive with no food and only water?
Answer:
These instances include hunger strikes, religious fasts, and other situations. These studies have uncovered several observations about starvation: An article in Archiv Fur Kriminologie states the body can survive for 8 to 21 days without food and water and up to two months if there's access to an adequate water intake.
If the universe is expanding, why aren't the stars in the night sky fading away?
Answer:
This sounds poetic
If this is an actual question the stars are never ending so the more it expands the more it reveals more
What is a chromosome?
O A colorful DNA
O A portion of DNA
O A broken DNA
O A sequence of DNA
O A piece of DNA
O A bundle of DNA
A woman has a child and sues a man for child support, claiming that he is the father. She is blood Type A, her child is blood Type O, and the man is blood Type B. The man says that this proves that he is not the father, but the judge in this case says it proves no such thing. Can a child with Type O blood be the father’s child? Prove either the father or the judge correct by using evidence with a punnett square.
Answer:
If both parents have an O allele, then the child could be O.
Explanation:
If the mom is AO and the dad is BO, there is a 25% chance of having an O child
A O
B AB BO
O AO OO
Yes, it is possible for a couple with mother having blood group A and father blood group B to have a child with blood group O.
Blood group or blood type is the classification of blood on the basis of the antigens present on the surface of red blood cells.
There are four main blood groups or blood types which include A, B, AB and O. Blood group of a person is determined by the genes which they inherit from their parents. Each group can be either RhD positive or RhD negative, which means in total there are eight blood groups present in human beings.
The punnett square for this couple is attached with the answer. Here, the genotype of mother will be AO and the genotype of father will be BO. Here, A and B are dominant on O blood group.
Therefore, it is possible for this couple to have a child with blood group O.
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Need help on question 4
Answer:
herbivore
Explanation:
goodluck
well the answer is A
difference between parallel venation and reticulate venation
this is where you can get
The difference between parallel venation and reticulate venation is in parallel venation, the vein of the leaf blade is in a parallel pattern, and in reticulate the vein of the leaf blade is a net or web-like structure.
What is venation?Venation is the pattern of veins present in the leaves. There are different patterns of veins present in the leaves, parallel venation, for example, banana leaf, and reticulate venation, for example, papaya leaf.
Thus, In contrast to reticulate venation, where the vein of the leaf blade is arranged in a net-like pattern, parallel venation has the vein of the leaf blade arranged in a parallel pattern.
Learn more about venation
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Help ASAP!!!! 20 points.
Answer:
5= mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.
NEED HELP ASAP PLEASE 20 POINTS
Answer:
False
False its faster! Hope this helps! More information here! Answer: An area going through secondary succession reaches its climax community faster because the area begins with some soil and some plant and animal species. An area that goes through primary succession, on the other hand, begins with no soil and no organisms, so reaching the climax community takes longer.
Explanation: False its faster! Hope this helps! More information here! Answer: An area going through secondary succession reaches its climax community faster because the area begins with some soil and some plant and animal species. An area that goes through primary succession, on the other hand, begins with no soil and no organisms, so reaching the climax community takes longer.
What is the name for scraping and gouging of earths surface by a glacier
Answer:
Glacial Striations or Striae are scratches or gouges cut into bedrock by glacial abrasion.
Chicago cyanide murders a case study on cellular respiration part one background question one what additional information would you need to determine if these deaths were connected?
Additional information for deaths that were linked is that they may have all gone to the same pharmacy and purchased a Tylenol, all victims lived in the same neighborhood of Chicago suburbs, people may be asked if they know anyone in common, and receipts of where the victims purchased the Tylenol may be required.
What is Chicago cyanide murders a case study?In September 1982, Mary Kellerman gave her 12-year-old daughter a pain reliever after she complained of a sore throat while awake. Her daughter was found unconscious on the bathroom floor the next morning at 7 a.m. and was later pronounced dead.Although it was initially thought that Adam Janus, a postal worker in another Chicago suburb, had died of a heart attack, he also died unexpectedly. His sister and brother were ill and died while his family gathered to mourn their loss.During the next few days, three more mysterious deaths occurred in Chicago suburbs. Investigators discovered that all of the victims had taken an extra-strength Tylenol before they died.To learn more about Chicago suburb, refer to:
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Some factories have started using large tanks of bacteria to remove carbon dioxide from the atmosphere. As more factories start to do this, the amount of carbon dioxide in the atmosphere could decrease over time. If this happens, and if energy coming from the sun and the amount of carbon dioxide being put into the atmosphere otherwise stay the same, what would happen to the total amount of energy in the Earth system and to global average temperature? If there is a change, explain how that change would happen.
Answer:
There would be less carbon dioxide in the atmosphere if more factories started using bacteria to capture carbon dioxide.
Explanation:
More energy reaches the Earth system than exited as combustion introduced carbon dioxide to the atmosphere, so the total amount of energy in the system increased.
Fewer CO₂ in the atmosphere will come from fewer factories using microbes to absorb CO₂. Greater energy in Earth's system as CO₂is released into the atmosphere.
Earth system:When combustion releases CO₂ into the atmosphere, greater energy enters the Earth system than exits, leading to an increase in the overall amount of energy in the system.
There'd be fewer CO₂ in the atmosphere if more firms began to use microbes to trap CO₂. When the amount of carbon dioxide in the atmosphere declines, the Earth's system receives less energy than it expels.Outgoing energy is sent back to the surface to be absorbed by CO₂. As a result, when less energy is redirected, greater energy leaves the system, resulting in less energy in the Earth's system. Since the surface absorbs less energy, global average temperatures would drop.Find out more about the Earth system here:
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Cottontail rabbits closely resemble the fall and winter plants in which they hide
Answer:
In earlier generations, the rabbits that looked most like their surroundings survived and reproduced.
Explanation:
The cotton-tailed rabbits consist of 20 species that are found in America and have stubby tales with white under them. They're distributed over north, central, and southern America. They live in nests called forms, have an average life span of 2 years. Due to their camaflugeous nature, they change their coat color twice every year to protect themselves from predators.Si un RNA mensajero (mRNA) esta formado por 700 nucleótidos, ¿puede ser posible que
la cadena peptídica sintetizada tenga tan solo 70 aminoácidos?
Answer:
Si, esto es posible ya que para llegar a su forma madura el ARN mensajero sufre un procesamiento conocido como empalme alternativo donde su longitud se reduce drásticamente mediante la eliminación de regiones no codificantes (intrones) presentes en el trascripto primario
Explanation:
En células eucariotas, la transcripción refiere al proceso donde un gen es usado como templado para generar un ARN mensajero (ARNm) inmaduro conocido como pre-ARNm, el cual contiene regiones cortas codificantes (exones) y regiones largas no codificantes (intrones). Durante el proceso de empalme alternativo, también conocido como splicing alternativo, este pre-ARNm sufre un procesamiento mediante el cual los intrones son eliminados y los exones son retenidos y empalmados, con lo cual el ARNm maduro final reduce drásticamente su longitud original. En el caso arriba descripto, una proteína con 70 aminoácidos resultaría de la traducción de un ARNm maduro que posee 210 bases nucloetídicas, ya que cada triplete de nucleótidos o 'codón' corresponde a un sólo aminoácido agregado a la cadena polipeptídica durante la síntesis proteica en los ribosomas.
which key process in biology is explained in the diagram above?
Answer:
ok
Explanation:
Hi I think the answer is bit C but I am not sure
Some flowers can only be pollinated by specific insect species.
What will happen if none of these insects are present?
A genetically different seed produced
B genetically identical seed produced
С no seed produced
D only small amounts of seed produced
Answer:
C no seed produced
Explanation:
Some flowers can only be pollinated by insects. If insects were not present, fertilisation would not be possible. With no fertilisation, no seed will be produced.