PLEASE HELP!

Use two examples for plants to explain how the development of new technologies such as radioisotopes has increased our knowlegde of reactions in plants.​

Answers

Answer 1

Answer: The radioactive isotopes can be used to track many physiological functions and chemical reactions occurring within the cells of the living organisms including plants.

Explanation:

Phosphorus uptake by the plants: Phosphorus is an essential mineral required by the plants for their growth and metabolism. The radioactive phosphorus-32 can be used to track back the rate at which the plant absorbs the phosphorus from the soil. This can help scientists to identify plants that can absorb phosphorus more quickly.

Pesticides levels in the plants: The pesticides levels in the plants can be traced by using radioisotopes such as chlorine-36. This can be used to trace the fact that how much of pesticide is present in the soil and how much of it is utilized by the plants. This is helpful identifying the fact that which pesticide is useful for the growth of the plants.


Related Questions

1.Consider the model above compare the DNA sequence of the model and abnormal CFTR gene explain the differences and similarities between the two.
2. Explain what caused the abnormal structure of CFTR protein.
3. Considering the structure of the mutant protein channel do you think it can perform the same function as a normal CFTR protein channel explain why or why not?

Answers

Answer:

1.Their similarities are that they both contain the codons for the following amino acids Isoleucine (ATC), glycine (GGT) and valine (GTT).

Their differences are:

a. Their codons for the second isoleucine molecule is different, ATC in the normalgene compared to ATTinnthe abnormal gene.

b. The codon for the amino acid phenylalanine is lacking in the abnormal gene.

2. The abnormal structure of the CFTR protein is because the amino acid phenylalanine is lacking in the polypeptide chain of the that region of the protein. This would result in an error in the secondary and tertiary structure of the protein.

3. The mutant protein would not be able to perform its function of channelling chloride ions across the membranes because the protein molecule is not properly folded for this function.

Explanation:

1. The DNA sequences of the normal CTFR gene and that of the abnormal CFTR gene shows some similarities as well as some differences.

Their similarities are that they both contain the codons for the following amino acids Isoleucine (ATC), glycine (GGT) and valine (GTT).

Their differences are:

a. Their codons for the second isoleucine molecule is different, ATC in the normalgene compared to ATTinnthe abnormal gene.

b. The codon for the amino acid phenylalanine is lacking in the abnormal gene.

2. The abnormal structure of the CFTR protein is because the amino acid phenylalanine is lacking in the polypeptide chain of the that region of the protein. This would result in an error in the secondary and tertiary structure of the protein.

3. The mutant protein would not be able to perform its function of channelling chloride ions across the membranes. This is because the protein molecule is not properly folded for this function. As illustrated by the model, while the normal protein can open for ions to move through, the mutant protein cannot.

which major processess were needed for the origin of life on earth

Answers

Organic molecules produced from spontaneous synthesis or from meteorites

What do you need to create a chemical bond?

Answers

A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons. Valence electrons are the electrons in the outer energy level of an atom that may be involved in chemical interactions.

Answer:

A strong chemical bond is formed from the transfer or sharing of electrons between atomic centers and relies on the electrostatic attraction between the protons in nuclei and the electrons in the orbitals. The types of strong bond differ due to the difference in electronegativity of the constituent elements.

Explanation:

What do transverse/Volkmann Canals do? and don't waste my point plz BRAINLES ​

Answers

Transverse vessels, which run perpendicular to the long axis of the cortex, are called Volkmann canals; Volkmann canals connect adjacent osteons and also connect the blood vessels of the Haversian canals with the periosteum, the tissue covering the bone's outer surface.

the primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain which oft he following common items would best represent the primary structure of a protein?

Answers

Answer:

In a primary structure of protein the smaller subunits amino acids are linked by peptide bonds. The peptide bond is formed when carboxyl or C=O. The long string of bead represents differentamino acids formed in the ribosome

when a plant forms glucose molecules, what is its source of carbon atoms

Answers

Carbon dioxide (CO2)

Primary decomposers are
select all that apply
fungi
plants
trees
bacteria
animals

Answers

The answer would be bacteria and and fungi
Bacteria and fungi not sure though sorry

WHERE ARE THE THREE TYPES OF MUSCLES FOUND?

Answers

Answer:

This is the answer I found

hope it is useful for you

Help plss I don’t get this so can someone plss help me!!

Name two positive effects caused by high biodiversity

Answers

means, a lot of life in a particular area

Explanation:

High biodiversity means that a region supports a wide variety of species, while low biodiversity implies that an area supports only a few.

Con ayuda de un microscopio se observa una bacteria en el agua transcurridas (2) se miran muchas bacterias . Que ocurrio alli ,que tpo de reproducccion sucedio meiosis o mitosis

Answers

Answer:

Ninguna de las dos. No ocurre ni mitosis ni meiosis.

Probablemente haya ocurrido fisión binaria/bipartición.

Explanation:

En este caso estamos hablando de bacterias, organismos unicelulares procariotas. Estos tienen una forma de reproducción asexual denominado fisión binaria. Los eucariotas por su parte pasan por periodos de división celular implicada en el crecimiento denominado mitosis, y división celular implicada en reproducción sexual, denominada meiosis.

La fisión binaria, también conocida como bipartición, si bien muy parecida a la mitosis en algunos aspectos, es la forma de reproducción de las bacterias.

Ambas, mitosis y fisión binaria, implican un duplicado de material genético. El ADN se duplica y una copia va a cada célula hija. Lo mismo sucede con el resto del contenido celular. Finalmente ocurre citocinesis. Sin embargo, a diferencia de la bipartición, la mitosis requiere de mecanismos mucho mas complejos de duplicación celular e involucra también a la cariocinesis, ausente en bacterias.

La fisión binaria ocurre muy rápidamente, en un breve período de tiempo puede hallarse una diferencia considerable en la cantidad de células presentes en un sustrato, producto de esta división. Es por esto que el crecimiento que exhiben las bacterias como población, sigue un modelo exponencial.

For many years, scientists thought that the universe was static—that it had always existed and been the same, and it was neither expanding nor contracting. Then, in the late 1920s, Edwin Hubble recognized that the shift in light from distant objects toward the red end of the spectrum meant that those objects were moving away from Earth. The best explanation for these observations was that the universe was not static but was expanding. More recent observations, such as cosmic background radiation, are also better explained by an expanding universe rather than a static universe. What aspect of scientific methodology best explains the replacement of the static universe theory with the expanding universe theory?
A Science and its methods are always improving. Scientists needed newer, more sensitive instruments to detect the slow expansion of the universe.

B Hubble’s observations were extremely popular with the public, leading to overwhelming support for the new theory.

C The new theory explained Hubble’s observations, and it was tested and supported by additional observations. The theory was accepted because it was the most powerful explanation available for many observations.

D The natural progression of science is that all theories are eventually replaced by new theories until one is established as law

Answers

Answer:

C

Explanation:

B has nothing to do with the scientific method. The public does not determine a scientific law. Facts do.

D may be sort of true, but it does not explain Hubble's process. Nor does it explain what Hubble actually did and how he reported it. D is incorrect.

A was never implied (although it is likely true. On the other hand, many great scientific principles are uncovered with very simple apparatus.) A might be 1/2 true.

I think the best answer is C. It is general enough to be accepted. There are two theories mentioned. So C is the best answer.

how
can it be proved that leaves
prepare food? Describe experiment.​

Answers

In the presence of starch iodine solution will turn into blue-black color and in the absence of starch iodine added to leaf will turn into brown color. ... So iodine added in this region will change into brown color. Thus this experiment proves chlorophyll is necessary for leaves to prepare starch through photosynthesis.

The rabbit reproduces sexually. If the
parent cells have 16 chromosomes,
how many chromosomes do the rabbit
sex cells have?

Answers

Answer:
8 chromosomes

Explanation:
I think It would be half of the original 16 chromosomes

Which statements describe components of fitness? (Select all that apply.)
• being free of physical and mental diseases
• performing muscular movement of the body that requires energy
• incorporating cardio and strength training into daily workouts
• having a large support system of friends and family​

Answers

Answer:

performing muscular movement of the body that requires energy

• incorporating cardio and strength training into daily workouts

The components of the fitness includes performing muscular movement of the body that requires energy as well as incorporating cardio and strength training into daily workouts. The correct options are b and c.

What is fitness?

Physical fitness is defined by professionals as "one's capacity to complete everyday tasks with optimized performance, perseverance, and strength while managing disease, exhaustion, and stress and reducing sedentary behavior."

Physical activity can enhance your brain health, assist you in controlling your weight, lower your risk of developing disease, fortify your bones and muscles, and improve your ability to do everyday tasks.

Individuals who sit very little and engage in moderate-to-vigorous physical activity reap health benefits.

Fitness includes performing muscular movements that require energy, as well as incorporating cardio and strengthening exercises into daily workouts.

Thus, the correct options are b and c.

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A keystone species maintains the __ in the ecosystem. A. Energy B. Stability C. Producers

Answers

Answer:

i would say A energy

Explanation:

srry if i got it wrong but have a nice day

Pollination occurs when pollen lands on the -
A. style

B. anther

C. stigma

D. filament

E. ovary

Answers

Answer:

C. stigma

Explanation:

"stigma"

Fertilization in flowering plants happens through a process called pollination. Pollination occurs when pollen grains from the anther land on a stigma. After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary.

A drought is a period of unusually low
rainfall. A farmer notices that a well on the farm stops providing water
during a drought. A nearby lake also
has less water in it than usual. Write a
couple of sentences that explains
what has happened to the water table
in the area to cause these results.

Answers

Due to the heat of the drought, the water goes through the process of evaporation which turns to a gas or vapor causing less water

In the drought period, the water label usually lowers due to the extreme heat of the sun that forces the water to undergo the process of evaporation and absorb all the water present on the surface.

What is drought?

Drought may be defined as a brief period of abnormally dry weather sufficiently prolonged for the lack of water to cause a serious hydrologic imbalance in the affected area.

During severe droughts, people depend heavily on groundwater—the water held underground in aquifers. During these periods, the rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth of water in wells gradually increases.

Therefore, in the drought period, the water label usually lowers due to the extreme heat of the sun that forces the water to undergo the process of evaporation and absorb all the water present on the surface.

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*EXTRA POINTS* what should be done with the two forces to find the net force? 29 N→⬛ 48N ← *

Answers

Need to subtract the 48N by 29N to get the resulting negative force of -19N

Organisms that make a product like glucose are:
Please answer

Answers

Answer:

Photosynthetic organisms

Explanation:

Which portion of a flowering plant absorbs water and minerals? *
A. stem
B. blade
C. root
D. flower

Answers

Answer: c

Explanation:

the roots absorb water and minerals from the soil and anchor the plant in the ground.

The skeletal system also helps us _____ muscles which are attached to bones by ______ makes our bodies move. Muscles, which are cause the bones to move, which makes our bodies move ​

Answers

Answer:

Dont open that link or they will track you down hope this help so you dont get kidnapped.  :)

ask the question again in another one

which of the following scientists can be identified as a taxonomist?

Answers

Answer: Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world. Using morphological, behavioral, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science.

Question 4
Nearly 30 percent of the native flora in the United States is considered to be of conservation concern. Without human intervention, many of these plants
may be gone within our lifetime. For the native birds and mammals of the United States to survive, plant life must be conserved. What product of
photosynthesis do plants provide to all animals?
Your answer:
Oxygen
Carbon Dioxide
Light
Hydrogen
Clear answer
Question 5

Answers

Answer:

Oxygen

Explanation:

The walls of the human heart are made of a specialized form of muscle tissue known as cardiac tissue. This cardiac, or heart, tissue contracts the chambers of the heart to cause rhythmical beating and blood circulation.


Tissues in the human body, such as cardiac tissue, are made up of

A.

nerves.

B.

blood.

C.

organs.

D.

cells.



please help meee

Answers

Answer:

d. cells

cardiac tissue are made up of cells.

the breakdown of rock material in its current location is known as? A. erosion B. weathering C. deposition D. landslide

Answers

it’s most likely

A: erosion

what is a turgid cell

Answers

Answer:

turgid refers to cells or tissues that are swollen from water uptake. Many cell types in many different organisms can become turgid due to water uptake. Some cells will lyse, or split open if they become too turgid.

Answer:

Explanation: turgid refers to cells or tissues that are swollen from water uptake. Many cell types in many different organisms can become turgid due to water uptake. Some cells will lyse, or split open if they become too turgid.

if you have the gene for hemophilia, will you always have hemophilia?

Answers

Answer:

most likely

Explanation:

most likelyeeeeee :)

1. When did stromatolites appear on Earth?
Archean
Hadean
Mesozoic
Proterozoic

Answers

Answer:

Proterozoic

Explanation:

Stromatolites appear on Earth in the end of Proterozoic era because Proterozoic extended from 2500 million years to 542 million years. The stromatolites were present on earth about 542 million years ago. The stromatolites present in large number on the sea shores around the world and are considered as the Earth's first visible life form which can be seen through naked eye. These stromatolites were the first known organisms in which photosynthesis occurs and produce free oxygen..

Answer:

Archean

Explanation:

I took the test

Studies have shown that children are especially vulnerable to the effects of ultraviolet (UV) radiation. Tanning beds expose the skin to nearly ten times as much UV radiation as natural sunlight. With that knowledge, a law was passed in some states to prevent individuals under the age of 18 from using tanning beds. Which statement best explains why UV radiation is so harmful?
a) It can increase harmful DNA mutations in cells.

b) Diseases are all caused by exposure to environmental factors.

c) Homeostasis in an organism is increased by the presence of UV radiation.

d)UV Radiation decreases the likelihood that mutations will occur.

Answers

Hello there!!

The answer, I think, would be A.

UV radiation can create problems in the correctness of cell replication, which can result in mutated cells.

I hope this answers your question!

Tanning beds can increase harmful DNA mutations in cells. So, the correct option is A.

What are Tanning beds?

In order to tan individuals, a tanning bed emits UV radiation (make their skin darker). If someone spends too much time in the tanning bed, it can also burn their skin, much like the sun. Many types of tanning beds exist. Using tanning beds can lead to more damaging DNA alterations in cells.

Special fluorescent lights (16–32 per tanning bed) that produce both visible and UV light are used in tanning beds. They employ a ballast system, like all fluorescent lights, to keep the amount of electricity going to each lamp to a maximum of 100 watts per lamp. A specific acrylic, or clear shield, is used over the bulbs in tanning beds.

Therefore, the correct option is A.

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Bacteria can reproduce by exchanging DNA. This exchange is called:
Binary Fission
Conjugation
Endospore production
Sexual reproduction

Answers

Answer:

conjugation

Explanation:

Bacteria reproduce by binary fission, resulting in two daughter cells identical to the parent cell. Bacteria can exchange DNA through the processes of conjugation, transformation, or transduction.

Other Questions
Several phases occur throughout a typical cycle of economic populism. Indicate the usual order in which the following phases take place. Populist governments begin a program of "reactivation, redistribution, and restructuring." In this program, macroeconomic constraints of budgets and foreign exchange are ignored and budget deficits are run up. Inflation can become severe while the use of the government budget to stimulate production leads to large deficits. Capital begins to flee the country as everyone anticipates that the policies are not sustainable and that the currency will be devalued. There is widespread disillusionment with current policy, often as a result of a recession or a period of very slow growth Growth leads to imports and trade deficits and the beginning of bottlenecks in the economy as shortages develop. Policymakers often raise wages and freeze prices as part of the redistribution package, Prices begin to rise in spite of the attempts to freeze Why do economic populism policies leave its supporters worse off than before the cycle begins? A. Any increase in wages falls behind the increase in prices and wage eamers lose ground. B. Capital flight and the perception that policies are unsustainable depress Investment, which reduces growth and real wages. OC. A and C only OD. Extremely high rates of inflation cause wage earners to give up all their gains. them E. All of the above. FILL IN THE BLANK if the wind speed averages 11 mph on ashley hill and 12 mph on genevie hill, then a turbine operating on genevie hill could, in theory, generate about _____ % more electricity than a turbine on ashley hill. A coupon bond which pays interest semi-annually has a par value of $1,000, matures in 8 years, and has a yield to maturity of 6%. if the coupon rate is 7%, the intrinsic value of the bond today will be (to the nearest dollar).$ 1.000$ 1.062.81$ 1.081.82$ 1.100.03 A triangle has sides with lengths of 54 meters, 78 meters, and 90 meters. Is it a righttriangle? What temperature does PVC pipe? Is the Second Amendment necessary? Can external auditors be completely independent? What US Supreme Court case that upheld that the Second Amendment protects an individual's right to own a firearm? What is the percent composition of a compound formed when 4.96 g of bromine combines with lithium to form 5.39 g of lithium bromide? which of the following is not a public health measure used to control the transmission of a pathogen r disease? I WILL GIVE 30 POINTS! It would be great if someone could answer this! For clarification, The first question is about DNA Replication. The second and third are about Interphase :) Who is responsible for clearly expressing backlog items? what is the answer for 5/8x + 4 = 3/8x + 12 What are the 3 types of competition in marketing? What is the central idea of this passage Brainly the pigs? What are the expectations of a primary message? An organization's most important resource is its human resource. true or false What is homophones give two examples? Databases are designed to keep data and information about different types of data objects, including objects, events, ________, and places.PeopleMarketsSecurityTransactions in many agencies, ain many agencies, a formal structure and informal structure exist. the differences between these may be reflected in which of the following: i. what the formal lines of communication are, versus whom actually communicates with whom. ii. what a particular job description says, versus what the individual in the job actually does. iii. what the board of directors deems appropriate allocation of funds, versus what is actually spent. iv. what the official policy is on a given issue, versus what actually happens if the issue arises.