Why do negative essay results not always mean Michael is absent

Answers

Answer 1

Answer:

I think you mean molecule not Michal so the answer is: the concentration of the molecule may be too low to be detected

Explanation:


Related Questions

Explain how this mutation will result in competition within the population that is linked to the idea of survival of the fittest.

Answers

Answer:

Survival of the fittest, term made famous in the fifth edition (published in 1869) of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing. Darwin borrowed the term from English sociologist and philosopher Herbert Spencer, who first used it in his 1864 book Principles of Biology. (Spencer came up with the phrase only after reading Darwin’s work.)

Herbert Spencer's Principles of Biology (1864) first introduced the expression “survival of the fittest.”

Survival of the fittestQUICK FACTSKEY PEOPLEAlfred Russel WallaceHerbert SpencerRELATED TOPICSAdaptationNatural selectionDarwinian fitnessUse in evolutionary theory

Darwin did not consider the process of evolution as the survival of the fittest; he regarded it as survival of the fitter, because the “struggle for existence” (a term he took from English economist and demographer Thomas Malthus) is relative and thus not absolute. Instead, the winners with respect to species within ecosystems could become losers with a change of circumstances. For example, fossil evidence supports the notion that the mammoth (Mammuthus) was more fit during the most recent ice age (which ended roughly 11,700 years ago), but it became less fit as humans hunted it and the world’s climate warmed; fossil evidence suggests that the mammoth succumbed to extinction a few thousand years later.

Darwin’s theory of evolution by natural selection entailed three crucial elements: variation, reproduction, and heritability. Variations in the physical features of organisms that tend to benefit an individual (or a species) in the struggle for existence are preserved and passed on (or selected), because the individuals (or species) that have them tend to survive. The success or failure of a given variation is not known when it emerges; it is known only retrospectively, after organisms that possess it either grow and mature and pass it to their own offspring or fail to mature and reproduce.

Importantly, Darwin was influenced by the thinking of English physicist and mathematician Isaac Newton, whose system emphasized experimentation, mathematics, and logic over subjective sense experience. During Darwin’s time, his evolutionary theory was an attempt to construct a similar system for the living world, a frontier not yet crossed in the biological sciences.

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Some philosophers and scientists have suggested that the notion of survival of the fittest is an example of circular reasoning—that is, a tautology (a statement framed in such a way that it cannot be falsified without inconsistency). In tautologies, any true statements that follow are a matter of definition. Indeed, describing those that survive as the fittest is similar to stating that those that survive survive. British philosopher Karl Popper considered “survival of the fittest” self-evident at first; however, he changed his mind after realizing that Darwin posited variation axiomatically; that is, Darwin noted that all individuals did not start with the same set of characters (or traits). Therefore, the forces affecting survival did not weigh on individuals and species equally; there were always variations, some of which would prove favourable and confer fitness over others.

Explanation:

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Question 2 of 10
What is the term for the condition of the atmosphere in a given area at a
given time?
A Weather
B. Latitude

C Climate
D. Altitude
SUBMIT
Need ASAP

Answers

A is the answer to this

Answer:

A .Weather

Explanation:

The state of atmosphere over an area at any point of time is known as weather. It is the state of the atmosphere over short periods of time. ... Precipitation, humidity, temperature, pressure, cloudiness, and wind are the basic atmospheric conditions that make up the weather of a region.

Describe how an ecosystem with high biodiversity might look compared to an ecosystem with low biodiversity.

Answers

Answer:

High biodiversity, with many species present, is good. It usually means that an ecosystem is healthy and relatively undisturbed by humans. Low biodiversity is characteristic of an unhealthy or degraded environment. A mown lawn in a city park is an example of an ecosystem with low biodiversity.

Which feature do viruses have in common with animal cells?
Production of energy by a mitochondrion
0 Existence of lipids in cell membranes
O Presence of a genetic code in nucleic acid
O Ability to form proteins at the ribosomes

Answers

Existing of lipids in cell membrane

Atividade de Português

Answers

Answer:

1- C

2-

3- C

4- C

Explanation:

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Answers

They overgrazed on the parks vegetation and grasses.

Javier investigated what happens when Earth's plates meet. He found that as Earth's plates meet at plate boundaries and interact, they move in three different ways. The ways they interact produce changes on land and on the ocean floor. What are the kinds of boundaries that plates form? Label each plate boundary with the correct type from the choices below.

Answers

Answer:

I. Divergent

II. Convergent

III. Transforming

Explanation:  

The crust is the outermost layer of the earth. It is divided into many plates that move over the mantle. Nowadays, there are six different bigger plates and twelve that are smaller. These plates are limited by three types of ridges or borders that differ in the movement they produce.

Boundaries types:

I. Divergent: New crust is created by the rising molten materials coming from the mantle. Two plates separate, and the stream of hot material creates a new seabed between them. It occurs an expansion of the sea bottom. As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. An example of this is the ridge located in the middle of the Atlantic Ocean, extending from Greenlander to the southernmost point of South America.

II. Convergent. Collision area between two plates. Two oceanic plates might collide, or one oceanic plate with a continental one. In this last case, the oceanic crust sinks under the continental plate, and magma rises to the surface by crevices. The thicker and older plate subduces under the other plate. The Himalayas and Los Andes are examples of these collisions. Also, collisions create volcanic arches and continental arches.

III. Transforming. The plates slide laterally with each other, and they are usually called faults. It is associated, in general, with the oceanic ridge, although it might also occur in the continental plate. No rocky material is either destroyed or formed. When the plates move and produce a displacement of one transforming limits from side to side, earthquakes occur. The movement breaks the crust and originates pronounced fractures. The San Andrés fault is an example of this plate ridges.

The kinds of boundaries that plates form is the fact that seismic activity takes place at the three known types of plate boundaries called divergent, convergent, and transform.

What happens when Earth's plates meet?If two tectonic plates meet, they create a kind of convergent plate boundary.

One converging plates often shift or move below the other, in  an act known as subduction.

The new magma (molten rock) tend to increase and may erupt to create volcanoes.

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In an energy pyramid, up to 10% of energy is transferred between trophic levels. Suppose the producer level has 50,000 J. Approximately how much energy is available to the next level, the primary consumer, in this energy pyramid?

Answers

Answer: 5,000

Explanation:So it is the 10% law, this is an example 10,000 for the first animal, 1,000 for the second and 100 for the third. So for 50,000 it would be 5,000 for the next

Which of the following is NOT one of Darwin's conditions for natural selection to occur?

Answers

Answer:b

Explanation:

The term "AIDS" means a condition which limits the body's ability to fight
infections.
True
False

Answers

Answer:

True

Explanation:

HIV and Aids effects our immune system. Our immune system keeps us healthy.

The answer is “true” I hope this helps

Describe movement of molecules to maintain a healthy cell environment. Explain in details

Answers

Answer:

Very necessary for its survival.

Explanation:

Movement of molecules is very important to maintain a healthy cell environment because some molecules are required by the cell for its growth and development. Some molecules moves inside the cell environment through a semi-permeable membrane such as glucose, oxygen, potassium etc while on the other hand, some molecules are removed from the cell which are waste materials such as carbondioxide etc. If these waste materials are not removed from the cell, it greatly damaged the cell.


*100 POINTS* | No Links, thank you in advance for your help.


Creating a new, sealed biosphere doesn’t have to cost millions of dollars. With little effort, you can create your own, small, enclosed bio-system. The following sketch is a schematic representation of such a project.


Name the divisions of the Biosphere above labeled:

A.
B.
C.


Describe at least three interactions between the living and non-living components of the Biosphere above:

1.
2.
3.

Answers

Answer:

1. The bottle itself is growing living plants from inside.

2. Because of the gravity pull between the lid of the cup and the water, the water is flowing through the bottom lid.

3. The bugs in the bottle are living inside an ecosystem that is not natural.

Explanation:

I hope that this helps, and I hope that you ace your assignment/quiz/test. This is from Edge correct? Because I think that I did this before...

Answer:

lithosphere

atmosphere

hydrosphere

Which of the following correctly describes the arrangement of the phospholipids in the lipid bilayer of the cell membrane? *

Phospholipids line up head to head, so the phosphate heads are separated from water.
Phospholipids line up head to tail, because opposites attract.
Phospholipids line up tail to tail, so the fatty acid tails are separated from water.
Phospholipids line up with no pattern, because they're molecules which move randomly.

Answers

Answer:

Two layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell.

Please help the picture is above I’ll mark as brainliest.

Answers

Answer: The last one im pretty sure.

Explanation:

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Choose all the right answers. All plant and animal cells have: cellulose cytoplasm nucleus cell wall membrane

Answers

Answer:

cytoplasm

Explanation:

I rlly hope this helps. its what I remember but goodluck

Answer:

hope this helps

Explanation:

Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane.

Help Brainliest to anyone who answers me ASAP!!!
Which scenario is an example of a negative feedback loop?
A.
When body temperature increases, sweat is produced as a cooling agent to lower body temperature.
B.
In some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation.
C.
Ice reflects sunlight much better than water. A warmer atmosphere is turning ice to water, which is absorbing more of the Sun’s energy.
D.
A warmer atmosphere is leading to warmer oceans. A warm ocean releases more carbon dioxide, which traps more heat in Earth’s atmosphere.

Answers

Answer:

A)

Explanation:

Question has been asked before so I know the answer.

Humanity faces a great number of environmental challenges, including: resource depletion, ecosystem service deterioration, pollution, biodiversity loss and climate change. Technology and research have both had positive and negative effects on the environment. Evaluate the impact of scientific research and technology on the environment. What are some ways that scientific research has harmed the environment. Choose ALL that apply. A) Research has led to the depletion of natural resources. Eliminate B) Air, water, heat and noise pollution can all be caused by producing and using technology. C) Scientific research has led to widespread increases in carbon emissions which has led to global climate change. D) Scientific research has caused widespread habitat disturbance and destruction as scientists have invaded ecosystems. E) Manufacturing technology creates large amounts of waste, and used computers and electronics get thrown out when they break or become outdated.

Answers

Answer:

Option B and E and D

Explanation:

Technological advancement has led to growth of industries and manufacturing units and hence the net production of goods. This has led to the use of natural resources and release of pollution of all forms. Environmental research leads to intrusion into niche habitats and hence causes its destruction.

Option B, D and E are correct

Which pie graph is shaded to best represent the approximate percentage of time that humans have existed during Earth’s entire history?

Answers

Answer: I chose D and got it right just always choose the smallest one their hope this helps yall

Explanation:

What do you notice about the speed of electrons through the short circuit?

Answers

No picture, no observation = no way to answer this.

The study of how gene expression is turned on and off and which considers the
interactions between DNA, RNA, proteins, and the environment is called

Answers

Answer:

epigenetics

Explanation:

Epigenetics is the study of how gene expression is turned on and off and which considers the interactions between DNA, RNA, proteins, and the environment .

What is Epigenetics?

Epigenetics is the study of how your behaviors and environment can cause changes that affect the way your genes work.

What are 3 factors that affect epigenetics?

Several lifestyle factors like diet, obesity, physical activity, tobacco smoking, alcohol consumption, environmental pollutants, psychological stress, and working on night shifts.

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water is warmers by the sun and ?

Answers

Answer:and then it evaporates into the atmosphere

Explanation:

What is anatomy?

Simple answer please!
I'll give brainlist

Answers

Answer:

Anatomy is the study of the bodies of people and other animals

hope this helps

have a good day :)

Explanation:

Anatomy is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science which deals with the structural organization of living things. It is an old science, having its beginnings in prehistoric times.

Scientists often look for similar genes in very dissimilar organisms as evidence that they are related.
O True
False

Answers

Answer:

True

Explanation:

What does it mean when something is prokaryotic?
A. It has a membrane around its DNA

B. It has one nucleus.

C. It has no nucleus.

Answers

C. It has no nucleus

Answer:

C. It has no nucleus.

Explanation:

If something is prokaryotic, it has no nucleus. So, option (C) is correct.

When purified virulent pneumococci DNA was introduced to avirulent pneumococci, Avery and his colleagues observed _____. Multiple choice question. no death in test animals only growth of avirulent pneumococci, indicating DNA was NOT the agent of transformation death of test mice growth of virulent pneumococci, indicating DNA was the agent of transformation

Answers

Answer:

death of test mice, growth of virulent pneumococci, indicating DNA was the agent of transformation

Explanation:

In an experiment conducted by three scientists namely: Oswald Avery, Colin MacLeod and Maclyn McCarty in 1944, it was proven that DNA is the substance that causes transformation in bacteria as opposed to proteins.

In this experiment, Avery and his colleagues combined a dead but virulent strain of Streptococcus pneumoniae & a living but avirulent strain of the same bacterium and inserted into a living rat. They found out that the test specimen (rat) died and observed the growth of the virulent pneumococci.

This suggests that the virulent strain of bacteria has transferred its virulent DNA via transformation into the avirulent strain to kill the rat. Hence, indicating DNA as the agent of transformation.

An oak tree falls in a forest. It kills some ants and stops grass from growing
below it. What type of disturbance is this?
O A. Secondary
O B. Primary
O C. Cyclical
O D. Small

Answers

Answer:

This is O D. Small type of disturbance.

Explanation:

Small-scale biological disturbance.

Answer:

O D. small

Explanation:

In ecology a disturbance is an event that causes a change in the environment. There are small-scale disturbances and high-magnitude disturbances. Small-scale disturbances are typically driven by biological processes -for example the fall of a tree- while high magnitude disturbances are typically driven by physical processes -for example, storms-. Small-scale disturbances as single-tree blowdowns are very important  to create and maintain diversity and heterogeneity in the forest.

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¿ Como recuperarías la Dieta Prehispánica y las tradiciones alimentarias que nos heredaron nuestros antepasados?

Answers

Answer:

A través de la literatura,

Explicación:

Recuperaríamos la Dieta Prehispánica y las tradiciones alimentarias que nuestros antepasados nos heredaron a través del estudio de su escritura sobre el plano de la dieta y los alimentos que consumen. Al adoptar la Dieta Prehispánica, podemos mejorar nuestra salud y recuperar nuestras tradiciones. También obtenemos tradiciones alimentarias que estuvieron presentes en la Dieta Prehispánica debido a la literatura escrita por las personas presentes en ese momento por lo que los documentos escritos ayudan a recuperar la Dieta Prehispánica y las tradiciones alimentarias.

Interphase happens before MITOSIS and MEIOSIS
A. True

B. False

Answers

the answer is A. true

Answer:

A. True

Explanation:

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

Which of the following is not a concern associated with fossil fuel dependence?

A. global warming
B. rising prices
C. increased competition
D.increased development

Please select the best answer from the choices provided

Answers

Answer:

D. increased development

Explanation:

I compared answers with others and found out d is correct. trust me :)

the gradual development of a new organism from preexisting organisms is called

Answers

Answer:

Evolution

Explanation:

Other Questions
Need some assistance please Wright Machinery Corporation manufactures automobile engines for major automobile producers. The engines sell for $940 per engine. In addition, customers have the option to purchase a service-type warranty for $70 per engine that protects against any defects for a period of 5 years. During 2019, Wright sold 7,000 engines to National Motors. National Motors purchased warranties on all of the engines purchased. During 2019, Wright repaired defective motors at a cost of $93,400. Prepare the necessary journal entries to record:1. the sale of engines and service warranty on account during 2016 (one entry).2. the warranty costs paid during 20163. the warranty revenue earned in 2016.Additional InstructionsModel your entries after the Service-Type Warranties example in your textbook.For grading purposes, use December 31 to record a summary transaction for entries that would have been made during the year. What was the significance of the Pentagon Papers?Americans support for the Vietnam War increased. The leaked documents hastened the end of the Vietnam War.Public access to government documents was made more readily available. New legislation was enacted to outlaw leaking information. For each of the following (1) identify the type of account as an asset, liability, equity, revenue, or expense, (2) identify the normal balance of the account, and (3) select debit (Dr.) or credit (Cr.) to identify the kind of entry that would increase the account balanceAccount Type of Account Normal Balance Increase (Dr. or Cr.)a. Fees Earned b. Equipment c. Notes Payable d. Owner Capital e. Cashf. Legal Expense g. Prepaid Insurance h. Land i. Accounts Receivable j. Owner Withdrawals k. License Fee Revenue l. Unearned Revenue May i get some help from anybody how can i answered this What is the area of this triangle PLEASE HELP ASAPPP!!!! 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Complete the sentences with the correct form of the verbs in brackets (if-clauses types 1 or 2)a) If the weather is fine, we ___________ (walk) to town. b) If the baby ___________(have) a temperature, Ill takehim to the doctor.c) Ill be very happy if George ___________(come).d) If they had money, they ___________(visit) their relativesin Australia.e) If we hurry, we ___________(catch) the train.f) If they had enough money, they ___________(buy) a new car.g) I ___________(invite) him if he were my friend.h) If you come with me, you ___________(help) me with the shopping.i) If Carol had a mobile phone, she ___________(phone) all her friends.j) If the students dont read this book, they ___________ (not know) the answers for the questions. k) Hell take his son to the park if he ___________(have) time.l) If they go to Nepal, it ___________(be) a fantastic trip.m)Janet ___________(stay) longer in Prague if she had more time.n) If you ___________(drink) too much, youll be sick.o) Susan ___________(get) a cold if she doesnt put her coat on.p) The children ___________(be) happy if their parents took them to the zoo.q) If Jason comes today, we ___________(go) to the disco.r) Alice ___________(feed) the animals if she stays at home.s) If my parents offer me a new mobile phone, I ___________(be) very happy.t) If Miriam studies hard, she ___________ (get) good results. The federal tariff of 1828, called the Tariff of Abominations, charged taxes on goods entering the country. This tariff affected the agricultural South more than other regions of the country. In response, the state of South Carolina called for? Bab need someone who can do quick mafs please! How does a person's body help you determine emotions?A. PostureB. GesturesC. Both Which mathematical sentence most Accurately expresses the information in the problem below? See Picture.... The combination locks on the lockers at Hillside School have numbers from 0 through 39 (inclusive). A locker combination consists of three different numbers, where the order matters. Because of the way the locks are manufactured, all three numbers are even or all three numbers are odd. How many combinations are possible 1. A shipping box has thedimensions10.5" x 7" x 3". What isthe volume of the shipping box? The Federalist Papers were written byGroup of answer choicesMarshall, Jefferson, and Adams.Washington, Adams, and Jefferson.Madison, Hamilton, and Jay.Jefferson, Locke, and Montesquieu.Franklin, Washington, and Lee. 58. Consider the graph of the line below. a State the slope of the line. b. State the x-intercept as an ordered pair. c. State the y-intercept as an ordered pair. d. Write the equation of the line in the form y = mx + b. Determine whether each of the following goods is a private good, a public good, a common resource, or a club good. Private Good Public Good Common Resource Club Good A stationary bike in a fitness room that is open to the public A large, beautiful clock in a town square A new drum set for you to play in your friend's band What is another name for the line GI in the image below?