DDT is an insecticide that accumulates in the fatty tissues of animals whose concentration increases with each link of the food chain. Which group of organisms is most likely to accumulate the highest concentration of DDT?

Answer:

either a or b

Explanation:

definitely not c or d.

The answer is b because I’m smart and I got all as in my class

Answer:

D. Serial dilution followed by a colony forming units calculation.

Explanation:

The best way to count bacterial cells such as Salmonella accurately is through serial dilution and calculation of colony forming units.

Serial dilution is made using a petri dish containing appropriate culture medium for Salmonella growth. In this petri dish, with the help of an inoculation loop, the suspension containing the Salmonella will be scratched in the middle of the petri dish. Then, the inoculation loop will be passed over the salmonella streaks and will be dragged to the other side of the plate, where the loop will be scratched halfway through this space. The inoculation loop should again pass over the new salmonella streaks and be dragged through the rest of the petri dish. Then one must wait for the bacterial colonies to grow inside the plate.

Once these colonies are grown, those that appear in isolation will be counted through a specific calculation for the count of salmonella colonies.

Answer: They have well-defined skeleton.

Explanation:

This is because the vertebrates are uniquely characterised by the presence of the bones.

Answer:

Answer is A)They have a well-defined skeleton

Explanation:

most reasonable answer

Answer: ok...

Explanation:

The continual input of energy, mostly from sunlight, sustains the process of life. Sunlight allows plants, algae and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates. This process is the fundamental source of organic material in the biosphere.

Answer:

join now only............. it's running

Answer:

C

Explanation:

Answer:

c. lipids

Explanation:

Answer:

1. In an ionic bond, the electrons are lost or gained between atoms. In a covalent bond, the electrons are shared between atoms.

2. Protons and electrons both have an electric charge. Protons have a positive charge and electrons have a negative charge. This means that their charges are equal and opposite. The nature of the charge influences how electricity moves through an atom.

3. a

4. d

5. c

6. b

Explanation:

The ionic bonds are formed between the metal and nonmetal with the opposite charges, whereas the covalent are between the nonmetals. The electricity is influenced both by the electron (negative) and protons (positive) of the atom.

What is an atom?

An atom is made of subatomic particles with different charges. The electron is negative and protons are positive charge particles that affect the movement of the electric current as their charges influence the electric charge.

The matches for the macromolecules with their definitions are given as,

Carbohydrates are the macromolecules involved in the storage of energy. Hence, option a is correct.

Nucleic acids are molecules consisting of DNA and RNA that act as genetic and heritable material. Hence, option d is correct.

Lipids are involved in the structural composition of the cell membrane and store energy. Hence, option c is correct.

Proteins make various enzymes and structures in the body that plays the most crucial role. Hence, option b is correct.

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Explanation: During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... If all conditions are ideal, the cell is now ready to move into the first phase of mitosis.

Answer:

answer is D

answer is mitosis

Explanation:

hope this helps!

Answer:

Generations 1 and 6.

Some ideas for incidents might include a forest fire, lack of snowfall, flooding, earthquake, etc.

Explanation:

(:

Answer:

earth is the only planet we know of that sustain life please mark me brain list

Yes , because In the near future the population will increase dramatically and the more valuable resources we have , the better it is because the chances of a country’s economy will be high and sustainable for life and surviving!!

I hope this answers your question and if you mark my answer a brainliest I would really appreciate it and it would make my day!!

Answer:d

Explanation:

it’s right

Answer:

a. To the right

b. higher

Explanation:

From the information given:

a.

The oxygen-adsorption curve of the elevated high altitude modified the hemoglobin and this will move to the right because there is a reduced amount of oxygen available at high altitude, as well as an increase in carbon dioxide and H+ ion concentration, temperature, and all of which raise pH and shifts the curve towards the right.

b.

As there is a low relative partial pressure of oxygen at high altitude, the oxygen-binding attraction of high altitude adaptable hemoglobin is greater and higher than that of unadapted hemoglobin under pulmonary oxygen loading. This is important to optimize the oxygen concentration levels in blood circulation and blood tissues.

Answer:

The answer is C. It has increased about 50% since 1750.

C might be the answer.

Answer:

Adjustment knob (coarse) ---> Causes stage (or objective lens) to move upward or downward

Arm ---> Serves as a handle for carrying the microscope

Condenser ---> Concentrates light onto the specimen

Eyepiece (ocular) ---> Contains a lens at the top of the body tube

Field of view ---> Circular area seen through the eyepiece

Iris diaphragm ---> Increases or decreases the light intensity

Nosepiece ---> Part to which the objective lenses are attached

Objective lens system ---> After light passes through the specimen, it next enters this lens system

Explanation:

The microscope is an essential equipment used in science laboratories to view objects which are too small to be seen by the naked eye. Also certain processes which occur at the microscopic level can only be observed using a microscope.

There are many different types of microscopes. The compound light microscope is the one most commonly used in biological laboratories to view tissues and cells of organisms. It uses visible light which passes through two separate lens to magnify the image produced of a specimen.

The various parts of compound light microscope and their respective functions are given below:

Adjustment knob (coarse) ---> Causes stage (or objective lens) to move upward or downward

Arm ---> Serves as a handle for carrying the microscope

Condenser ---> Concentrates light onto the specimen

Eyepiece (ocular) ---> Contains a lens at the top of the body tube

Field of view ---> Circular area seen through the eyepiece

Iris diaphragm ---> Increases or decreases the light intensity

Nosepiece ---> Part to which the objective lenses are attached

Objective lens system ---> After light passes through the specimen, it next enters this lens system

Stage ---> Platform that supports a microscope slide

Stage (slide) clip ---> Holds a microscope slide in position

The correct match between microscope parts and names are:

A. adjustment knob (coarse)  - 4.

B. Arm - 8.

C. Condenser - 3.

D. eyepiece (ocular) - 7.

E. Field of view - 10

F. Iris Diaphragm - 1

G. Nosepiece - 9

H. objective lens system - 5

I. Stage - 2

The microscope is an important piece of equipment used in biological science that helps in view objects that can not be seen by the naked eye. It is also used in various branches of science used to see certain processes that occur at the microscopic level.

A. adjustment knob (coarse)  - Causes stage or objective lens to move up or down B. Arm - Serves as a handle for carrying the microscopeC. Condenser - focus or concentrates light onto the specimenD. eyepiece (ocular) - Contains a lens at the top of the body tubeE. Field of view - Circular area can be seen through the eyepieceF. Iris Diaphragm - helps to Increases or decreases the light intensityG. Nosepiece - Part to which the objective lenses are attachedH. objective lens system - After light passes through the specimen, it next enters this lens systemI. Stage -  Platform that supports a microscope slide

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Answer:

A survivorship curve reflects the relationship of survival rate with age. best curves the statement about survivorship.

Explanation:

heyy mate! hope this helped you!

A survivorship curve is a graph that shows the proportion of individuals in a population surviving at different age intervals. The correct statement is that survivorship curve describes the pattern of mortality in a population over time. The correct option is C.

What is Survivorship curve?

Survivorship curve describes the pattern of mortality in a population over time. The survivorship curve is divided into three types, i.e., Type 1, Type 2, and Type 3. Survivorship curve type 1 represents a high survival rate throughout the lifespan of the population. It shows that most individuals survive until old age, and the mortality rate increases at the end of the lifespan.

Survivorship curve type 2 shows a relatively constant rate of mortality throughout the lifespan of the population. It indicates that the probability of survival remains the same throughout life.

Survivorship curve type 3 represents high mortality rates among young individuals in a population. It shows that most individuals die young, and only a few individuals survive to adulthood.

Therefore, the correct option is C.

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Your question is incomplete, most probably the complete question is:

Which of the following statements regarding survivorship curves is correct?

a) survivorship curves are graphs that plot number of survivors (Nx) against age (x)

b) In type III curve, most individuals in the population die at the very early age

c) Survivorship curve describes the pattern of mortality in a population over time.

d) K-selected species typify populations that follow a type I curve

Answer:

a. 80%

b. 86%

c. 60 g

d. 34.29%

Explanation:

From the given information:

The apparent nitrogen digestibility (AD) is the ratio of the difference between the consumed nitrogen and fecal nitrogen to the consumed nitrogen.

Mathematically:

[tex]AD = \dfrac{consumed \ nitrogen - fecal \ nitrogen }{consumed \ nitrogen }[/tex]

[tex]AD = \dfrac{175 -35 }{175}[/tex]

AD = 0.8

To percentage, the apparent Nitrogen digestibility = 80%

b. True Nitrogen digestibility is calculated by the formula:

[tex]=\dfrac{consumed \ nitrogen - (fecal \ nitrogen -metabolic \ fecal)}{consumed \ nitrogen}[/tex]

[tex]= \dfrac{175 -(35-10)}{175}[/tex]

[tex]= \dfrac{175 -25}{175}[/tex]

= 0.86

= 86%

c. Nitrogen Balance = consumed Nitrogen - Fecal nitrogen - total uninary

Nitrogen Balance = (175 - 35 - 80) grams

Nitrogen Balance = 60 g

d. Apparent Nitrogen Retention (ANR) is computed as follows:

[tex]ANR = \dfrac{(consumed \ nitrogen-fecal\ nitrogen - total \ uninary )}{nitrogen \consumed }\times 100\%[/tex]

[tex]ANR = \dfrac{(175-35- 80 )}{175 }\times 100\%[/tex]

[tex]ANR = \dfrac{(60 )}{175 }\times 100\%[/tex]

ANR = 34.29%

Answer:

And will also reduce unemployment and also reduce morbidity

I am sorry I wanted just wanted point for my answer I am sorry

Answer:

1. nucleic acids - these are the molecules also known as genetic material and code for the hereditary characteristics by regulating the production of the proteins.

2. Lipids - Lipids are the hydrocarbon and the major constituents of the cell membrane and molecules like hormones and give energy as well.

3. steroids - Steroids are lipids that have a fused ring structure and do not resembles other lipids however, have the same hydrophobic nature.

4. peptide - when two amino acids react with one another in an acid-base reaction there is a peptide bond form and the new molecule is called peptide and chains of such molecules known as polypeptides.

5. Deoxyribonucleic acid or DNA - It has genetic information code in it as specific sequences, it is used to develop and functions of various living organisms.

6. Ribonucleic acid or RNA - RNA is the molecule that play important role in protein synthesis as it (mRNA) carries the genetic code needed for the creation of proteins to the ribosomes from the nucleus.

7. Monosaccharides - Monosaccharides are the simplest form of Carbohydrates and known as a basic subunit of carbohydrates as these are linked to form complex carbohydrate molecules.

8. Starch - Starch is a carbohydrate found mainly in plants as the storage form of carbohydrates and provides nutrition to various organisms including humans.

9. Isomers - are the ompounds that have the same molecular formula but different chemical structures are called isomers.

10. Carbohydrates - it is the organic molecule and major source of nutrition that is produced by green plants from carbon  dioxide and water through the process of photosynthesis.

Answer:

double

Explanation:

B

Double bond must exist between the last carbon and the other carbon atom.

What s unsaturated fatty acid?

Unsaturated fats are commonly biosynthesized by a one of a kind dehydrogenation response called desaturation. The science of this change is wonderful in its selectivity.

The development and use of novel robotic tests (deutero-, fluoro-, thia-containing substrate analogs) has prompted a more refined comprehension of how unsaturated fat desaturases and related compounds complete their super particular oxidation science. The stereochemistry and request of hydrogen expulsion has been inspected for various solvent and layer bound desaturses.

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Answer:

The movement of the action potential down the length of the axon is an electrical event, and movement of the neurotransmitter across the synaptic space represents the chemical portion of the process.

Answer:

The soil salt geted decereased because the plants in field absorbed salt from soil.

Muscles are required in breathing, talking, running, walking, and any body movement. Actin and myosins are protein filaments present in muscle cells that help to contract and relax or change the shape of muscles. Muscles are responsible for the movement or motion of organisms. Joints are the connection between two or more bones. Most joints are mobile.

Muscle strength is determined by several factors. Some of those are the physical shape, size, and innervation of the muscles.  

Weak contraction

Potassium accumulates in the sarcoplasm. Contracted lower sarcoplasm pH.Begin contraction with muscle already 50%. The circular arrangement of muscle fascicles.

Stronger contraction

Increase in muscle belly circumference. A lesser proportion of motor neurons to muscle fibers. Increased recruitment. Increased stimulus frequency.

Answer:

Explanation:

I believe the answer is the last one. The average intake in 2010 was 1030 mg approximately and that, according to experts is not enough.  

The American diet is very high in sodium which is not good for your blood pressure. It was, some time ago, recommended that the average intake of Sodium should be about 2 grams. Two hamburgers will shoot that number to the moon, so now it is 4 grams. which if 2 grams was high, 4 grams is super high. Junk food prevails in America.

Fiber is true. It is low. The American Heart Association recommends 25 grams of Fiber a day. The average American takes in 15 which is only 60% of the recommended amount.

B. Low in fiber. This is incorrect. The correct answer would be HIGH in fiber, so therefore the answer is B.

Answer:

ok so like i think they do but it also makes things really complicated

Explanation:

becauuuuseeeee its the fact that for me i always think that maybe thats how the world birthed orrrrrrrr that all of this is a made up concept of life cause everything you think about is just another concept. anddddd it could just be like the matrix and its like hard to think about how everything we know couldd just be made up or pointless to the point where there is a point of living ykkkkk.

Mark Brainliest please

My argument runs like this. I’ll construe “science” as the set of tools we use to find truth about the universe, with the understanding that these truths are provisional rather than absolute. These tools include observing nature, framing and testing hypotheses, trying your hardest to prove that your hypothesis is wrong to test your confidence that it’s right, doing experiments and above all replicating your and others’ results to increase confidence in your inference.

And I’ll define religion as does philosopher Daniel Dennett: “Social systems whose participants avow belief in a supernatural agent or agents whose approval is to be sought.” Of course many religions don’t fit that definition, but the ones whose compatibility with science is touted most often – the Abrahamic faiths of Judaism, Christianity and Islam – fill the bill.

Next, realize that both religion and science rest on “truth statements” about the universe – claims about reality. The edifice of religion differs from science by additionally dealing with morality, purpose and meaning, but even those areas rest on a foundation of empirical claims. You can hardly call yourself a Christian if you don’t believe in the Resurrection of Christ, a Muslim if you don’t believe the angel Gabriel dictated the Qur’an to Muhammad, or a Mormon if you don’t believe that the angel Moroni showed Joseph Smith the golden plates that became the Book of Mormon. After all, why accept a faith’s authoritative teachings if you reject its truth claims?

Indeed, even the Bible notes this: “But if there be no resurrection of the dead, then is Christ not risen: And if Christ be not risen, then is our preaching vain, and your faith is also vain.”

Many theologians emphasize religion’s empirical foundations, agreeing with the physicist and Anglican priest John Polkinghorne:

“The question of truth is as central to [religion’s] concern as it is in science. Religious belief can guide one in life or strengthen one at the approach of death, but unless it is actually true it can do neither of these things and so would amount to no more than an illusory exercise in comforting fantasy.”
The conflict between science and faith, then, rests on the methods they use to decide what is true, and what truths result: These are conflicts of both methodology and outcome.

In contrast to the methods of science, religion adjudicates truth not empirically, but via dogma, scripture and authority – in other words, through faith, defined in Hebrews 11 as “the substance of things hoped for, the evidence of things not seen.” In science, faith without evidence is a vice, while in religion it’s a virtue. Recall what Jesus said to “doubting Thomas,” who insisted in poking his fingers into the resurrected Savior’s wounds: “Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.”


Two ways to look at the same thing, never the twain shall meet. Gabriel Lamza/Unsplash
And yet, without supporting evidence, Americans believe a number of religious claims: 74 percent of us believe in God, 68 percent in the divinity of Jesus, 68 percent in Heaven, 57 percent in the virgin birth, and 58 percent in the Devil and Hell. Why do they think these are true? Faith.

But different religions make different – and often conflicting – claims, and there’s no way to judge which claims are right. There are over 4,000 religions on this planet, and their “truths” are quite different. (Muslims and Jews, for instance, absolutely reject the Christian belief that Jesus was the son of God.) Indeed, new sects often arise when some believers reject what others see as true. Lutherans split over the truth of evolution, while Unitarians rejected other Protestants’ belief that Jesus was part of God.

And while science has had success after success in understanding the universe, the “method” of using faith has led to no proof of the divine. How many gods are there? What are their natures and moral creeds? Is there an afterlife? Why is there moral and physical evil? There is no one answer to any of these questions. All is mystery, for all rests on faith.

The “war” between science and religion, then, is a conflict about whether you have good reasons for believing what you do: whether you see faith as a vice or a virtue.

Compartmentalizing realms is irrational

So how do the faithful reconcile science and religion? Often they point to the existence of religious scientists, like NIH Director Francis Collins, or to the many religious people who accept science. But I’d argue that this is compartmentalization, not compatibility, for how can you reject the divine in your laboratory but accept that the wine you sip on Sunday is the blood of Jesus?

Answer:

Mechanoreceptors would be activated

Explanation:

The skin is a complex organ that is found covering the entire surface of the human body. The mechanoreceptors are responsible for the sense of touch, that is, the capture of pressure on the skin. They are the Meissner corpuscles and the Vater-Pacini corpuscles, which are made up of nerve endings and connective tissue, in other words, they are receptors that are stimulated by muscle contraction and pressure on the joint elements. It allows to know the position of the body and the degree of contraction of the muscles.

Answer:

these r so many which one?

Explanation:

.... what you wrote isn’t a question.... you wrote a statement.....

Here is what you wrote translated to English

Analysis of factors shows that SOIL is the most diverse environment in terms of organisms?

Answer:

I don't no answer sorry

Explanation:

follow

Answer:

Nâng cao kiến ​​thức về hệ thống miễn dịch niêm mạc cá sẽ tạo điều kiện cho ... Tuy nhiên, có một số thách thức quan trọng để phát triển năng suất, ... Đầu tiên, kết quả thu được trong những năm đầu sẽ được phân tích, và điều này ... cơ quan và liên tục với các lớp lót của tất cả các lỗ trên cơ thể và cũng bao phủ các vây. và Cá cũng có thể sửa đổi cấu trúc mang để đáp ứng với độ mặn, thiếu oxy, hoặc axit hóa ... chưa rõ ảnh hưởng đến sức khỏe biển và sản lượng nuôi trồng thủy sản. ... để mở các hệ thống trong đó chất lượng nước là một chức năng trực tiếp của môi trường.

Answer:

a. lower

b.higher

c.lower

1.Higher

Explanation

Moisture is a great environment for bacteria to grow, the moister the environment is the more the bacteria will thrive, thinking about this lower moisture levels will result in lower microbial diversity.

The small intestine has higher ph than the stomach, this means that the bacteria there thrive in higher ph than the stomach bacteria.

Normal microbia in the skin usually acts as the first barrier against pathogens, while we have normal microbia it will protect us and will be less likely to get skin pathogens.

Immunocompromised patients are people that have received treatment to reduce their immunological system capacity, this means that even though this is done to battle a disease, another opportunistic infection can appear and take advantage of the fact that the defenses are low.

Answer:

porque la glucosa genera mas desechos de alcohol y CO2.

Medio mínimo salino en que se reemplaza la glucosa por diferentes fuentes.

Medio de melaza de caña de azúcar 40 g/1 y urea 1,2 g/1 para fermentador.

producido por bacterias, como Bacillus subtilis en laboratorio bajo condiciones .

Explanation: