Answer:
In these experiments the control group is compared with the comparison group.
The control group will sometime be in the presence of carbon dioxide, and will be controlled, where the analyst or researcher will take an expert position and then will compare it evolutionarily with the comparison group that the ideal would be that there is not ever a carbon dioxide
Explanation:
If we have two poison ivy research groups that are representative of the poison ivy that the researchers are looking to investigate the results will have much better credibility and will be more reliable.
On the other hand, the comparison of the two groups makes it possible to rigorously analyze whether or not poison ivy grows in the presence of this gas.
What is the number of this particle in a phosphorus atom?
Ap ex
Answer:
Fósforo
Símbolo P, número atómico 15, peso atómico 30.9738. El fósforo forma la base de gran número de compuestos, de los cuales los más importantes son los fosfatos. En todas las formas de vida, los fosfatos desempeñan un papel esencial en los procesos de transferencia de energía, como el metabolismo, la fotosíntesis, la función nerviosa y la acción muscular. Los ácidos nucleicos, que entre otras cosas forman el material hereditario (los cromosomas), son fosfatos, así como cierto número de coenzimas. Los esqueletos de los animales están formados por fosfato de calcio.
Cerca de tres cuartas partes del fósforo total (en todas sus formas químicas) se emplean en Estados Unidos como fertilizantes. Otras aplicaciones importantes son como relleno de detergentes, nutrientes suplementarios en alimentos para animales, ablandadores de agua, aditivos para alimentos y fármacos, agentes de revestimiento en el tratamiento de superficies metálicas, aditivos en metalurgia, plastificantes, insecticidas y aditivos de productos petroleros.
De casi 200 fosfatos minerales diferentes, sólo uno, la fluoropatita, Ca5F(PO4)3, se extrae esencialmente de grandes depósitos secundarios originados en los huesos de animales y que se hallan en el fondo de mares prehistóricos, y de los guanos depositados sobre rocas antiguas.
La investigación de la química del fósforo indica que pueden existir tantos compuestos basados en el fósforo como los de carbono. En química orgánica se acostumbra agrupar varios compuestos químicos dentro de familias llamadas series homólogas.
Esto también puede hacerse en la química de los compuestos de fósforo, aunque muchas familias están incompletas. La familia mejor conocida de estos compuestos es el grupo de cadenas de fosfatos. Las sales de fosfatos constan de cationes, como el sodio, junto con cadenas de aniones, como (PnO3n+1)(n+2)-, que pueden tener de 1 a 1 000 000 de átomos de fósforo por anión.
Los fosfatos se basan en átomos de fósforo rodeados en una disposición tetraédrica por átomos de oxígeno, el miembro más pequeño de la familia es el anión simple PO3-4 (el ion ortofosfato). La familia de las cadenas de fosfato se basa en hileras alternadas de átomos de fósforo y oxígeno en que cada átomo de fósforo permanece en el centro de un tetraedro de cuatro átomos de oxígeno. Hay también una familia estrechamente relacionada de fosfatos cíclicos.
Una característica estructural interesante de muchos de los compuestos del fósforo conocidos es la formación de estructuras tipo jaula. Ejemplos de estas moléculas son el fósforo blanco, P4, y uno de los pentóxidos de fósforo, P4O10. Las estructuras tipo red son comunes; por ejemplo, los cristales de fósforo negro en que los átomos están enlazados unos con otros.
En la mayor parte de sus compuestos, el fósforo está enlazado químicamente a cuatro átomos inmediatos. Hay gran número de compuestos en los que uno de los cuatro átomos está ausente y en su lugar hay un par de electrones no compartidos.
Hay también unos cuantos compuestos con cinco o seis átomos unidos al fósforo; son muy reactivos y tienden a ser inestables. Durante los años 60 y 70, se prepararon muchos compuestos orgánicos de fósforo. La mayor parte de estas estructuras químicas incluye tres o cuatro átomos enlazados al fósforo, pero existen también estructuras con dos, cinco o seis átomos unidos a cada átomo de fósforo.
Casi todo el fósforo utilizado en el comercio está en forma de fosfatos. La mayor parte de los fertilizantes fosfatados constan de ortofosfato diácido de calcio u otofosfato ácido de calcio muy impuros, Ca(H2PO4)2 y CaHPO4. Estos fosfatos son sales del ácido ortofosfórico.
El compuesto de fósforo de mayor importancia biológica es el adenosintrifosfato (ATP), que es un éster de la sal, el tripolifosfato de sodio, muy utilizado en detergentes y ablandadores de agua. Casi todas las reacciones en el metabolismo y la fotosíntesis requieren la hidrólisis de este tripolifosfato hasta su derivado pirofosfato, llamado adenosindifosfato (ADP).
Efectos del Fósforo sobre la salud
El Fósforo puede ser encontrado en el ambiente más comúnmente como fosfato. Los fosfatos son substancias importantes en el cuerpo de los humanos porque ellas son parte del material de ADN y tienen parte en la distribósforo que es conocida. Cuando el fósforo blanco ocurre en la naturaleza este puede ser un peligro serio para nuestra salud. El fósforo blanco es extremadamente venenoso y en muchos casos la exposición a él será fatal. En la mayoría de los casos la gente que muere por fósforo blanco ha sido por tragar accidentalmente veneno de rata. Antes de que la gente muera por exposición al fósforo blanco ellos a menudo experimentan náuseas, convulciones en el estómago y desfallecimiento. El fósforo blanco puede causar quemaduras en la piel, dañar el hígado, corazón y riñones.
Efectos ambientales del Fósforo
Answer:
Name: Phosphorus
Symbol: P
Atomic Number: 15
Atomic Mass: 30.974 atomic mass units
Number of Protons: 15
Number of Neutrons: 16
Number of Electrons: 15
Melting Point: 44.1° C
Boiling Point: 280.0° C
Density: 1.82 grams per cubic centimeter
Normal Phase: Solid
Family: Nonmetals
Period: 3
Cost: $4 per 100 grams
Origin of Name From Greek words phos, meaning light and phoros meaning bearer
Date and Place of Discovery In 1669 in Germany
Discovered by Hennig Brand
Explanation:
Major difference between messaging via the nerves and hormones
Answer:
the nerves produce immediate but short-living responses while hormo nes produce slow but short-living responses
Explanation:
i hope this will help you
Which class of biomolecule do the molecules in the table belong to? A. proteins B. carbohydrates C. nucleic acids D. lipids
Answer:I can't see any table but I will tell you everything about protein molecules and the rest.
protein belongs to the table of amino acids .
carbohydrates belong to the table of sugar.
nucleic acids belong to the table of nucleotides.
lipids belong to the table of fatty acids and glycerol.
Explanation:
Protein belongs to the table of amino acids, carbohydrates belong to the table of sugar, nucleic acids belong to the table of nucleotides and lipids belong to the table of fatty acids and glycerol.
Which class of biomolecule do the molecules in the table belong to?Amino acids combine together to form protein, glucose combine together to form carbohydrates, Nucleotides combine together to form nucleic acids, fatty acids and glycerol combine together to form lipids.
So we can conclude that Protein belongs to the table of amino acids, carbohydrates belong to the table of sugar, nucleic acids belong to the table of nucleotides and lipids belong to the table of fatty acids and glycerol.
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what happens to meristem when ot looses its abilty to divide
Answer:
The meristematic cells mature, get differentiated, loose their ability to divide and finally get converted into permanent tissues
Explanation:
what is a function of a protein macromolecule
Answer:
A function of a protein macromolecule is: Moving things in and out of cells. Transporting other molecules in the body. Protein macromolecule makes up the connective tissue in tendons. Moves things in and out of cells.
Explanation:
Answer:
move things in and out of the cell
Explanation:
move things in and out of the cell
Which of the following is not a way that new technology impacted farmers in the new millennium?
A)
the development of insect resistant crops
B)
genetically engineered livestock
C)
decreased productivity
D)
increased demand for organic foods
Answer:
C
Explanation:
Got it right on edge
The radius of the Crab Nebula is approximately 5.225 × 1013 kilometers. Use the conversion factor 1 light-year = 9.5 × 1012 kilometers to find the radius in light-years.
Answer:
Using the above conversion
9.5 x 10 ^12kilometers = 1 light year
Therefore 5.225 x 10^13 will be
5.225 x 10^13/ 9.5 × 10^12 × 1 light year
= 5.5 light years
The radius of the Crab Nebula is
5.5 light years.
Hope this helps
Answer:
Plato says 5.5 ly
a person who is more than 2o percent heavier than the average person of the same sex and height is said to be
Answer:
overwieght
Explanation:
How would driving from Boston (near sea level) to summit of Mt. Washington affect the rate of oxygen exchange in your lungs? Explain in 1-2 sentences plz
Answer:
The rate of oxygen exchange in the lungs decreases, outstandingly while diving from Boston (near sea level) to summit of Mt. Washington
Explanation:
At near sea level, Boston, where there is sufficient dense air and plentiful supply of oxygen, the rate of breathing and oxygen exchange in the lungs is at normal levels
At the height of 6,288.2 feet, which is the height of the summit of Mt Washington, the lung does more work to extract the oxygen from the air present which is less dense and contains less oxygen than the air at sea level such that a larger volume of air is required to supply the amount of oxygen the body requires
Therefore, the rate of oxygen exchange in the lungs decreases, outstandingly while diving from Boston (near sea level) to summit of Mt. Washington.
How do animals get rid of excessive nitrogen?
Answer:
Animals get rid of nitrogen by converting it int urea uric, acid and ammonia.
Explanation:
Answer:
adding c02
Explanation:
Which statement gives one reason that watershed protection programs are needed in Virginia
Ecosystems need to be controlled
Foods must be prevented
Dams can be damaged and may require repair
Wildlife can ruin water source when building habitats
Answer:
Dams can be damaged and may require repair
Explanation:
This is imperative to provide needed supports and maintenance for the aging dams,with capacity of up to 11,000. This dams were created as far back as 1948.Therefore the programme was geared towards effective re-habitation for maximum efficiency.
This repair programmes was termed Dam Rehabilitation Programme.And the secretary of Agriculture was given the authority to ensure effective execution of the programme.
In the state of Virginia,a total of 150 dams were part of the government landscape through the rehabilitation programme, and 11 of these have been well studied. .Todd Lake,Robinson Hallow, Lake Barton are some of these examples.
Answer:
the answer is c
Explanation:
What does Electronegativity mean in regards to
elements? How does electronegativity influence the
molecule's chemical property?
Help :(
Answer:
it is the ability of attracting other molecules this effect the properties by what it is going to bond to. like say it is 6 and another 2 they will be more likely too bond to one another to make a valence of 8.
Explanation:
4. What is the symbol for calcium?
А с
B Са
C Cm
D CI
Answer:
B. Ca
Explanation:
Not rlly anything to explain here
Answer:
The answer is B (Ca)
Explanation:
According to the table of elements
Classify the organisms based on how they obtain food
Answer:
Tipos de Nutrición
- Autótrofa: Sintetiza sustancias orgánicas a partir de sustancias inorgánicas simples, como las plantas.
- Heterótrofa: Los que necesitan alimentos procedentes de otros seres vivos, como los animales. ...
- Herbívoros. Son los que se alimentan de plantas. ...
- Carnívoros. ...
- Omnívoros. ...
- Filtradores. ...
- Decomponedores
Explanation:
Answer:
Autotroph: Sunny fields, Carrots, ...the sea algea(or whatever that is)
Heterotroph: Tiger, Human, Deer
Explanation:
I got it right
hope this helps :)
Organisms contain different levels of organization within their bodies. Arachnoidiscus ehrenbergi, pictured below, is a single-celled organism that is part of the group of algae known as diatoms. A microscopic image of Arachnoidiscus ehrenbergi. Photo by Gordon T. Taylor, courtesy of the NOAA Which level of organization is seen in both Arachnoidiscus ehrenbergi and the human stomach? cell tissue organ organ system Mark this and return
The correct answer is the cell.
Since Arachnoidiscus ehrenbergi is a single cell organism the only level its of organization is cell. Human stomach is composed of many different types of cells which combine together in order to perform complex functions. Those cells are arranged in tissues which make an organ-stomach.
hope it helps!
The level of organization displayed by both Arachnoidiscus ehrenbergi and the human stomach would be the cell.
Since it has already been established that Arachnoidiscus ehrenbergi is a single-celled organism, it can only exhibit a cellular level of organization.
The human stomach, in a similar vein, is made up of different cells. One group of such cells are secretory epithelial cells. They include the mucous cells, parietal cells, chief cells, and so on.
Thus, Arachnoidiscus ehrenbergi and the human stomach have the capacity to exhibit a cellular level of organization.
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What is the primary reaction during nuclear fusion to stars?
what are the two main a biotic factor that affect organisms in a marine ecosystem
Answer:
one of these a or b i know that much
Explanation:
my bad
Answer:the answer will be ----------- B oxygen level and water temperature
Explanation:
njsdnjcnjncds just know ;)
Natural selection does not always result in an increase in genetic diversity.
Please select the best answer from the choices provided
ОТ
OF
Answer:
It does affect it.
So the answer is OT.
In which life stage can butterflies reproduce?
Answer:
Explanation:
All butterflies have "complete metamorphosis." To grow into an adult they go through 4 stages: egg, larva, pupa and adult. Each stage has a different goal - for instance, caterpillars need to eat a lot, and adults need to reproduce.
A limestone bed containing fossils that are 550 million years old is ____ a bed of sandstone containing fossils that are 400 million years old. a. younger than c. older than b. the same age as d. not related to Please select the best answer from the choices provided A B C D
A limestone bed constituting fossils 550 million years old is older than a sandstone bed containing fossils 400 million years old. The correct option is c.
What is sandstone?Sandstone is a sedimentary rock that is sometimes mostly composed of quartz sand, but it could also contain substantial amounts of feldspar, silt, and clay.
A limestone bed comprising fossils dating back 550 million years is older than a sandstone bed containing fossils dating back 400 million years.
Thus, the correct option is c i.e., older than.
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Genetic engineering involves _ to achieve desired results
a enzyme production
b. modifying products and processes
c changing one organism into another
d introducing traits into organisms
Please select the best answer from the choices provided
Ο Α
OB
0 С
OD
Answer:
The answer is option D.
Hope this helps.
Answer:
The answer is Introducting traits into ogranisms. or D
Explanation:
A gene pool consists of all the genes within a
Answer: including all the different alleles that are present in a population
Explanation:
1 2 3 4 5 6 7 8 9 10
TIME REMAINING
52:11
Environmental factors can influence natural selection because they can increase or decrease
the number of chromosomes in an individual.
the number of chromosomes in a population.
the amount of genetic variation in an individual.
the amount of genetic variation in a population.
Answer:
49 sec
because you have never seemed yet 59 hour instead 12 hour.
but 24 hour also.
What industry was created when people suddenly had more time and money available?
Most earthquakes happen:
1) in a ring around the Atlantic Ocean
2) near regions with no subduction
3) near active margins
4) in the middle of the continents
Answer:
in the middle of continents
Explanation:
Answer:
near active margins
Explanation:
Carly has wavy hair. Her father has straight hair, and her mother has curly hair. Which type of inheritance pattern is responsible for Carly’s wavy hair?
A.
codominance
B.
dominant
C.
incomplete dominance
D.
polygenic
E.
recessive
Answer:
Incomplete Dominance
Explanation:
Ture or false proofs of the Resurrection are few
Answer:
False
Explanation:
There are many documents and records of the Resurrection. In addition, there were also many eye witnesses because Jesus appeared to many after his Resurrection.
A physical oceanographer studies all of the following except:
ete
of
Select one:
a. Currents
b. Waves
c. Tides
d. Fish
Check
Answer:
The answer is option d.
Fish
Hope this helps
which phrase is a result of a scientific law
Answer:
Archimedes' Principle of Buoyancy.
Hooke's Law of Elasticity.
Bernoulli's Law of Fluid Dynamics (Bernoulli's Principle)
Dalton's Law of Partial Pressures.
Fourier's Law of Heat Conduction.
Explanation:
Which movement of particles would be most affected by a disorder that causes damage to carrier proteins? osmosis passive transport active transport diffusion
Answer: Active Transport
Explanation: Active transport is the movement of a substance (proteins, enzymes, etc.) from one area of the cell membrane to the next during diffusion, so this would most be affected due to the kinds of substances being transported across the cell membrane and damage can have an impact.
Carrier proteins are involved in active transport. The movement of particles that would be most affected by a disorder that causes damage to carrier proteins is active transport. Option C.
What are the carrier proteins?Carrier proteins are transmembrane molecules involved in active transport.
They carry molecules from one side of the membrane to the other side.
What is active transport?Active transport acts against the electrochemical gradient, so it does need the energy to transport substances.
It carries molecules from a low concentration side to a high concentration side.
The used energy comes from ATP (Na-K bomb) or the membrane's electric potential.
The movement of particles that would be most affected by a disorder that causes damage to carrier proteins is active transport. Option C.
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