¿Que científico investigó sobre la conductividad de las disoluciones acuosas de diferentes
sustancias ?

Answers

Answer 1

Answer:

Stephen Gray nacido en diciembre de 1666, Canterbury 7 de febrero de 1736, Londres fue un físico y científico natural inglés, conocido principalmente por sus aportaciones en el campo de la conductividad eléctrica.


Related Questions

what is the role of the shrimp with respect to phytoplankton in this food chain

Answers

Explanation:

The answer is B. that is "Prey"...

The correct answer is option (b) Prey.

What is shrimp?

A small free-swimming crustacean with an elongated body, typically marine and frequently harvested for food.

What is phytoplankton?

Plankton consisting of microscopic plants is called phytoplankton.

Why other options are incorrect?

Option (a), (c), (d) is incorrect because, prey means the phytoplankton is the food of shrimp.

learn more about food chain below,

https://brainly.in/question/51732170

#SPJ2

g Large, complex aquatic organisms and all terrestrial ones Group of answer choices are ureotelic. or ammonotelic. evolved specialized tubules lined with transport epithelia. are uricotelic.

Answers

Answer:

evolved specialized tubules lined with transport epithelia

Explanation:

The epithelium is a basic tissue that forms a continuous, protective layer of cells. Moreover, transport epithelia are specialized types of epithelium that are involved in the absorption of ions and water from one side to the other of the epithelium, which are responsible for the movement of solutes both in osmoregulation and excretion. During the evolution of excretory organs, higher animals developed specialized tubules associated with transport epithelia whose function is to excrete waste products and selectively retain (filter) nutrients.

How is blood different after it is pumped through the capillaries in the intestines?

Answers

Answer: nutrients are absorbed then it goes into the bloodstream through capillaries. These nutrients include acids, vitamins and fatty acids

Explanation:

the answer is above

Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?

The protein built from this mutated sequence is deactivated by the cell.

The cell recognizes mutations and ignores them when expressing the gene.

The mutated sequence still codes for the same amino acid.

The immune system repairs the mutated sequence during development.

Answers

Answer:

The mutated sequence still codes for the same amino acid.

Explanation:

Mutations that have no effect on an organism's characteristics have mutated sequences that still code for the same amino acid.

Because it codes for the same amino acid that it was intended to, the proteins made from it will remain the same.

This means that there will be no effect or change on the organism's characteristics, because the protein will be the exact same.

So, the correct answer is that The mutated sequence still codes for the same amino acid.

Answer:

The mutated sequence still codes for the same amino acid.

Explanation:

This type of mutation is called a silent mutation. Despite a nucleotide in the codon being changed, the original codon and the mutated codon still code for the same amino acid. This results in no observable effect on the characteristics of the organism.

Hope that helps.

describe nutrition in insect​

Answers

Answer:

Lots of insects eat plants, some insects eat other insects, and some even drink blood. Many insects eat nectar from plants. And some insects will eat whatever scraps of food you leave lying around. A few insects, such as mayflies and some moths, never eat.

Explanation:

Which of the following are characteristics of Ascomycota? Check all that apply.

flagellated spores

spores produced in the ascus

lack reproduction phase

important in the food industry

important in the digestion of animals

can cause disease in plants

can cause disease in animals

Answers

2. spores produced in the ascus

4. important in the food industry

6. can cause disease in plants

Explanation:

hope this helps :)

Ascomycota is the phylum of fungi which produce spores in the ascus, important in the food industry, and can cause disease in plants. Thus, the correct options are 2, 4, and 6

What are ascomycetes?

Ascomycota is a phylum of the kingdom fungi that, together with the Basidiomycota phylum of the fungi. The members of ascomycota are commonly known as the sac fungi or ascomycetes. Ascomycota is the largest phylum of Fungi, with over 64,000 species.

Ascomycetes are commonly known as sac-fungi as they are produced in a sac-like structure called as ascus. Inside this ascus, non-motile microscopic sexual spores are formed which is a defining feature of this kingdom fungi.

Therefore, the correct options are 2, 4, and 6.

Learn more about Ascomycota here:

https://brainly.com/question/944567?referrer=searchResults

#SPJ6

How many protons are in an atom krypton

Answers

I think there’s is 36 protons

Describe how a jump rope can be used to model a cell membrane of a plant cell

Answers

Answer:

Plants can use the energy from sunlight to turn water and carbon dioxide into. When the cell has enough organelles to make two cells, the division process starts. Let's discuss the process of photosynthesis again, this time taking a closer look at it. Just A long rope to represent the cell wall.

Explanation:

Answer:

the jump rope represents the cell wall

(a) Describe why DNA replication is said to be a semiconservative process. Explain how random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism.

Answers

Answer:

DNA replication is semi-conservative because each helix that is created contains one strand from the helix from which it was copied. The replication of one helix results in two daughter helices each of which contains one of the original parental helical strands.

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. ... Mutations can also occur as the result of exposure to environmental factors such as smoking, sunlight and radiation.

Btw :

stay safe! :3

(a) In order to understand why the replication of DNA is said to be semi conservative, there is a need to understand what really goes on during replication.

During replication, the two strands of the DNA first become separated.Each strand then makes a complementary copy of itself.The original double strand does not reform, instead, the old strands each forms a double strand by coupling with their newly synthesized complimentary strands.

The fact that the 2 double strands DNA that forms at the end of the replication process each consist of one old and one newly synthesized strand is why replication is said to be semi conservative. The old strands remain conserved but are now separated into new double strands.

(b) Random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism due to a host of factors:

mistakes during replicationmutation due to external factors such as chemicals, UV radiation, etc.

When this happens, the DNA sequence is altered and this alteration creates  one or more phenotypic effects.

More on DNA replication and mutation can be found here: https://brainly.com/question/10787

discuss the ecological importance of the dark phase​

Answers

Answer:

In the dark phase (which takes place in the stroma), the ribulose bisphosphate added to the carbon dioxide gas (CO2) in the air results in the production of organic compounds, principally carbohydrates or sugars, whose molecules contain carbon, hydrogen, and oxygen.

Explanation:

Glycolysis takes place in _________________.

The cytoplasm
The mitochondrial intermembrane space
The mitochondrial matrix
The endoplasmic reticulum

Answers

Answer:

It occurs in the cytoplasm. Glycolysis also involves two stages which break up glucose. In the 1st stage, Glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.

Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?
A. a caliper and a flask
B. a stopwatch and a beaker
C. a balance and a beaker
D. a meter stick and a temperature probe

Answers

Answer:  C. a balance and a beaker

Explanation:

A balance would be used to measure the weight, which in turn effectively measures the mass (more or less). Imagine that we have a brick that we know is 1 pound. If we have an object that needs 5 bricks on one side to balance it out, then we know the object is 5 pounds.

The beaker is used to measure the volume. It's basically a measuring cup that you would find in the kitchen.

To get the density, you divide the mass over volume.

For example, if you have a material that has a mass of 100 grams and it's volume is 20 cm^3, then its density is 100/20 = 5 grams per cm^3.

Answer:

C! Correct on Edge, and got 100% on this test!

Explanation:

What is one advantage of having many small cells instead of one large cell?
A. Small cells do not have cell membranes.
B. With many small cells, you have more surface area.
C. With many small cells, you produce less protein.
O D. Small cells do not require a stable internal environment.

Answers

having one large cell simply means that you can't move your limbs, so I say D

When determining CFU/mL, plates with more than 300 colonies should be eliminated from analysis, being designated: Group of answer choices TNTC TSA TVAC TFTC

Answers

Answer:

TNTC

Explanation:

The correct option would be TNTC.

TNTC simply means Too Numerous To Count.  The term is usually reserved for bacterial culture plates with high bacterial loads, usually in the excess of 300 colonies. It is as opposed to TFTC (Too Few To Count) which is the term used when the colony count on a bacterial culture plate is less than 30.

When a bacterial culture plate is too numerous to count, it can either be eliminated from data analysis or the sample diluted to lower the bacterial load.

The stroma is the Group of answer choices space between the inner and outer membranes of a chloroplast. watery fluid enclosed by the inner membrane of a mitochondrion. thick fluid enclosed by the inner chloroplast membrane. space between the inner and outer membranes of a mitochondrion.

Answers

Answer: The correct option to the question is (thick fluid enclosed by the inner chloroplast membrane).

Explanation:

Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle. In electron micrographs, thylakoid membranes look like stacks of coins, although the compartments they form are connected like a maze of chambers. The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the STROMA

The STROMA is made up of thick colourless fluid which surrounds the thylakoid and is enclosed within the inner chloroplast membrane. The stroma is essential for photosynthesis because:

--> it contains the enzymes necessary for carbon fixation,

--> it also manages the chloroplast response to cellular stresses and signaling between various organelles.

--> It plays an important role in both the light-dependent and light-independent reactions of photosynthesis.

How does carbon cycle through Earth's systems? A. As fossil fuels are burned, carbon dioxide is made available for photosynthesis in animal cells. When the animals die, carbon is released into the soil, and the animal remains form new fossil fuels. B. Animals absorb carbon dioxide through their skin. Dead animals release carbon into the soil. Plants absorb the carbon from the soil and release carbon dioxide during photosynthesis. C. Plants absorb carbon dioxide through their leaves. Animals take in the carbon when they eat the plants. Animals exhale carbon dioxide. Dead plants and animals release carbon into the soilling D. Photosynthesis releases carbon dioxide into the atmosphere Cellular respiration uses carbon dioxide​

Answers

Answer:

D. Photosynthesis releases carbon dioxide into the atmosphere Cellular respiration uses carbon dioxide​.

Explanation:

Carbon dioxide is taken out of the air by the photosynthesis process to make carbon food for crops.

Animals and plants need a mechanism called respiration to remove carbon dioxide gas.

When combustibles are burned, carbon flows from fossil fuels to the air.

A human gene was initially identified as having three exons and two introns. The exons are 456, 224, and 524 bp, whereas the introns are 2.3 kb and 4.6 kb.

Required:
a. Draw this gene, showing the promoter, introns, exons, and transcription start and stop sites.
b. Surprisingly, this gene is found to encode not one but two mRNAs that have only 224 nucleotides in common. The original mRNA is 1204 nucleotides, and the new mRNA is 2524 nucleotides. Use your drawing to show how this one region of DNA can encode these two transcripts.

Answers

456,224 makes the gene show the promoter and 1204

malaria is caused by—​

Answers

Answer:

caused by plasmodium and transmitted by infected Andes mosquitoes


A fertilization
B prophase II
C polyploidy
D crossing over​

Answers

Answer:

Hi, there your answer D. Crossing Over

Explanation:

The purpose of using the binomial scientific names is to

Give each organism a unique name
Give each species a unique name
Study how the environment affects different organisms
Study the evolution of life
Protect endangered species

Answers

Answer:

study the evolution of life

la rosa pertenece a un grupo de arbustos que puede ser homocigotico para expresar el tallo alto (TT) y se crusa con una homocigotica de tallo (tt) sabiendo que el tallo alto es dominante sobre el tallo enano ¿cómo serán los genéricos y fenotipos de la F1 yF2​

Answers

Sorry I don’t understand.

Identify the part of the plant where photosynthesis primarily occurs.

Answers

Answer: In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

Explanation:

Answer:

on plato its the first box

Explanation:


1. The diagram to the right represents events that occur during sexual
reproduction. The stages labeled A, B, and Care necessary to ensure that
the offspring will inherit
1. half of their chromosomes from each parent
2. double the amount of chromosomes from each parent
3. pairs of chromosomes from each parent
4. double the amount of chromosomes from one parent

Answers

half of their chromosomes from each parent

Explanation: you get half of your chromosomes from each of your parents

PLS HELP TIMES TEST I HAVE 49 MINUTES LEFT AND THERES 41 QUESTIONS IM ON 14

Answers

Answer:

1: The mRNA would not be sythensised

Explanation:

RNA polymerase - used in transcription to initiate replication of mRNA.

If mutated then it will result to no mRNA synthesied????

Food chains end with a species that…

Answers

Your answer d is correct it makes the most sense and is the valid choice

When species become challenging to classify, what is the most accurate technology for their identification?

DNA sequencing
DNA electrophoresis
DNA amplification
DNA barcoding
DNA replication

Answers

Answer:

Sería códigos de ADN

Explanation:

Espero ayudarte

NEEDED NOW ASAP HURRY PLEASE

Answers

Answer:

D

Explanation:

because the populations have become different, they can no longer breed making it harder from them to grow.

In a particular population, the allele frequency of the ABO blood type alleles are as follows: IA is 20%, IB is 30% and i is 50%. If mating is random and the population is in Hardy-Weinberg equilibrium, what percentage of the population will have type O blood type

Answers

Answer:

The genotypic frequency F(ii) = 0.25 = 25%

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

In the blood type cases involving the ABO group, the type of inheritance here is the co-dominance type of inheritance

The percentage of the population with type O blood will be 25%

Type A (IA) is dominant to type O (i) and at the same time type B (IB) is also dominant to type O (i).Using the equation - p² + 2pq + q² + 2pr + r² + 2qr = 1Where indicates the genotypic frequency with type A (AA) blood and indicates genotypic frequency of BB and indicates the genotypic frequency of OO.

Since we are finding the percentage with type O blood (r²) where r (allelic frequency of type O) is 0.5 (50%)

= 0.5² = 0.25 = 25%.

Learn more about co-dominance: https://brainly.com/question/3578928

Nitrogen is an essential nutrient for plant growth. But farmers who cultivate pulse crops like Green gram, Bengal gram, Black gram etc., do not apply Nitrogenous Fertilizers during cultivation. Why?​

Answers

Answer:

Nitrogen is so vital because it is a major component of chlorophyll.Nitrogen is the fuel that makes plants go. It's used to synthesize amino acids, proteins, chlorophyll, nucleic acids, and enzymes. Plants need more nitrogen than any other element.Farmers who cultivate pulse crops like green gram, Bengal gram, black gram, etc. do not apply nitrogenous fertilizers during cultivation because these crops have "rhizobium bacteria".

These plants are leguminous plants and they have symbiotic relationship with Rhizobium bacteria. This bacteria converts atmosphere nitrogen in a form that the plant can use, in return the plant provide them shelter and food. That's why they don't need extra nitrogen from fertilizers.

Neurons of the diencephalon are known As _____ neurons. A. First-order. B. Lower motor C. Second-order D. Upper motor E. Third-order

Answers

Answer:

E nice

good job

Explanation:

Other Questions
Find the average of 40.6, 10, 0.7, and 120.02 which part of the passage provides details that are also in the image from the talkative tortise Camelot Company has estimated the following costs for this year for 50,000 units: Manufacturing Selling and Administrative Variable $100,000 $ 25,000 Fixed 150,000 75,000 Total $250,000 $100,000 What is the initial selling price needed to obtain a target profit of $50,000 using the manufacturing cost markup method List the numbers in order from least to greatest:4, -6, 0, 8, -9, 1, -3 "Menciona y explica 5 ideas del liberalismo"Ayuda [cry] 4x-2 3x+14 how do I find x? What were Nobles in French Revolution? Interpret the numbers and variables in the following questions.9.A colony of bacteria doubles in number every hour. The expression 250.2 gives the numbbacteria after h hours. What does tthe constant 250 in the expression represent?he constant 250 in the expression represent? PLEASE HELP MEEEEEEEEEEEEE Suppose that for a certain company C(x)=35x+300,000 represents the total cost function, and R(x)=75x represents the total revenue function. Find the total-profit function and break-even point.Which of the following functions represents the total-profit function?A) 40x-300,000B) 40x+300,000C) 110x+300,000 El costo de un producto es S/ 450 el MU es 4%. Cul ser el importe de la factura por 300 unidades? What is Evaluate 3(4 - 2)2 how to find the area of a circle with the diameter 21 There are 20 rows of seats on a concert hall: 25 seats are in the 1st row, 28 seats on the 2nd row, 31 seats on the third row, and so on. How many seats are in the last row? What are the coefficients in the problem 7a + 5b =ca and b5 and ca,b,and c7 and 5 D(p) is the price, in dollars per unit, that consumers are willing to pay for p units of an item, and S(p) is the price, in dollars per unit, that producers are willing to accept for p units. Find the equilibrium point. D(p)=350020p, S(p)=2500+5pWhat are the coordinates of the equilibrium point? A spring scale hung from the ceiling stretches by 6.1cm when a 2.0kg mass is hung from it. The 2.0kg mass is removed and replaced with a 2.8kg mass.What is the stretch of the spring? fine measure of each angle indicated show how to solve 1/4 (4 + x) = 4/3pls solve for 2 brainliest - shape and size of cells are related to the functionthey perform . Explain with example