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.
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.
Work = force x distance.
If a machine increases the distance over which a force is
exerted, the force required to do a given amount of work
O also increases
O decreases
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 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
This is pretty long, but the question is short. Brainiest to best answer! :)
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
PLZ HELP NEED AN ANSWER ASAP
A red snapdragon flower is crossed with a white snapdragon flower and the offspring are all pink. The pink phenotype is a result of -
A. codominance
B. incomplete dominance,
C. multiple alleles
D. polygenic inheritance.
what are some ways in which humans may be influencing the evolution of mankind and other organisms
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.
Learn more about Blood group here:
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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
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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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
Which substance is commonly found in a cell membrane?
O cellulose
O proteins
O RNA
O DNA
Answer:
O proteins
Hope it helps
Please mark me as the brainliest
Thank you
Answer: Proteins
explanation
call membrane are composed primarily of fatty- acid- based lipid and proteins.
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.
outline how the nephrons carry out their processes (4marks)
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
3. What causes genetic variation? Select all that apply.
asexual reproduction
crossing
over
mitosis
independent assortment
Answer:
Crossing over
Independent assortment
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.
Alex wants to know if a fossil he found was closely related to cats. What are some likely features of the fossil that can help him reach a conclusion?
Answer:
Some likely features he should note about the fossil are it's teeth, its ears, its body shape, its toes, its claws and its spine to help him reach a conclusion.
I hope this helps you!!
What fossil fuel fueled the Industrial Revolution?
PLSS HELP WITH THIS I NEED HELP
Answer: It should be the letter C
Explanation:
what type of ecosystem will be harmed by flushing chemicals down the drain
Answer:
Oxygen Depletion
Explanation:
In addition to the eutrophication of water bodies, wastewater effluents also contribute to another process of deoxygenation. The biological (bacterial) breakdown of organic solids in the effluent also consumes dissolved oxygen – the biological oxygen demand (BOD). In addition, the degradation of chemicals in the effluent removes oxygen from the water through chemical reactions – the chemical oxygen demand (COD).
As was previously mentioned, the loss of dissolved oxygen in the water can result in serious immediate, short-term, or long-term consequences to aquatic life. Fish survival is particularly affected by low oxygen levels. Decreased disease resistance, reduced growth, altered swimming behaviour, feeding, migration, and reproduction, increased threat of predation, and even rapid death are some of the effects of low dissolved oxygen concentrations.
Low oxygen levels can also alter the kinds of species present in the ecosystem. With a change in food supply, some populations of species decrease, while others increase. Fish such as whitefish, walleye, and pike may disappear, while bottom-feeding fish such as carp may increase in number.
Can someone help please!!!
Answer:
Since it has double strand, Its a DNA.
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
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.
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
The villi and the root hair cell have many mitochondria. Explain why they this helps them to function properly.
Answer:
Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. They also contain lots of mitochondria , which release energy from glucose during respiration in order to provide the energy needed for active transport.
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
—-PLEASE HELP QUESTION IS IN THE PICTURE—-
Answer: B is correct
Explanation: