17.) Which of the following statements is FALSE about mutations?
a. They are almost always harmful
b. They can be caused by exposure to radiation
C. Some mutations can be beneficial
d. They change the genetic code by inserting, deleting, or substituting bases

Answers

Answer 1
i believe the answer is a

Related Questions

What are the qualities of greenhouse gas? Select the two correct answers.

A. transparent to infrared radiation
B. three or more atoms in a molecule
C. produced by human activity
D. absorbs and re-emits infrared radiation
E. composed of single atoms, not molecules

Answers

Answer:

produced by human activity

absorbs and re-emits infrared radiation

Explanation:

produced by human activity

absorbs and re-emits infrared radiation

SCIENCE ASSAP
what does primary succession mean

Answers

Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life

guys help with this plzz
brainlest even if u try ur best :



Vasoconstriction and Vasodilation

__________ carries heat from the core around the body.

As blood flows through the ______________ close to the surface of the ______, heat is lost to the body’s surroundings.

The __________________ which supply the capillaries in the skin have smooth _________ in their walls. This means that the arterioles can dilate or constrict to ____________ the flow of blood into the capillaries.

Answers

Explanation:

is it only vasoconstriction and vasodilation as the answers or are there more?

Why is DNA related to protein

Answers

DNA stores the instructions (genetic information) used to build proteins.

What is the function of erythrocytes?
What is the term for all the components of the blood?
What is blood?

Answers

Answer:

1. The main physiological role of red blood cells (RBCs), or erythrocytes is to transport of gases (O2, CO2) from the lung to the tissues and to maintain systemic acid/base equilibria. In addition, RBCs are well equipped with antioxidant systems, which essentially contribute to their function and integrity.

2. In humans, it includes plasma (the liquid portion), blood cells (which come in both red and white varieties), and cell fragments called platelets. Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.

3.Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

hope it will help u

What are the 3 most important parts of a seed

Answers

Embryo, endosperm, and seed coat

Answer:

the 3 primary part of a seed are the embryo, endosperm, and seed coat.

expaination:The embryo is the young multicellular organism before it emerges from the seed.

The founder of modern evolutionary theory is considered to be--

Answers

Answer: Charles Darwin

Explanation:

Please Answer These Questions!

1. What is a stimulus?
2. Why does the body respond to stimuli?
3. What are some different types of stimuli?
4. What are sensory organs and what type of stimuli do these receptors respond to?
5. What is an explanation of how the information from stimuli is communicated to the brain?
6. What is a description of the two things that can happen when the brain processes the information from stimuli?

Answers

Hello, 3Coli Here!

Here are your answers:

1. What is a stimulus?

Stimulus is a natural body reaction caused by changes in the environment around or inside the organism. This is a response from the brain.

2. Why does the body respond to stimuli?

The body responds to stimuli, because it needs to protect itself.

3. What are some different types of stimuli?

The two main types of stimuli are external stimuli and internal stimuli. External stimuli are reactions triggered by changes that occur outside of the body, while internal stimuli are reactions triggered by changes inside of the body.

4. What are sensory organs and what type of stimuli do these receptors respond to?

The most commonly used sensory organs include Eyes, Ears, Tongue, Nose, and Skin. Eyes respond to light and motion, because they are used to see. Ears respond to sound, because they hear. The tongue is used to taste, so it senses flavors. The nose is used to smell, so it responds to scents. Finally, the skin is used to feel, so it responds to whatever it feels.  

5. What is an explanation of how the information from stimuli is communicated to the brain?

Neuron receptors convert internal and external environments into electrical signals, and then is sent to the brain through nerves.  

6. What is a description of the two things that can happen when the brain processes the information from stimuli?

After the brain receives the signal, it will provide a response. One type of response is that the body will physically react to the change. The second type of response is to avoid the change.

Hopefully, this helps! :D

Ask your question below!


How can humans best limit the negative impact that farming has on soil quality?

Answers

Answer:

rasenshuriken jk f these resources, soil and water have provided humans with the ability to ... to fertile soils; 3) the impacts of intensive agriculture on soil degradation; and 4) the ... in a severe limitation of crop yield — an example of the principle of limiting factors. ... to generate new soil, it is imperative that agricultural practices utilize best ...

Explanation:

After a devastating forest fire, the surrounding area contained no life. After some time, small plants began to grow along the remaining soil.

Answers

Answer:

Yes.

Explanation:

Yes, small plants began to grow along the remaining soil because of the presence of seeds in the soil that sense suitable environmental condition and come out of the soil. The ashes of burn trees have huge amount of nutrients in the form of minerals that triggers the growth of small plants. After the destruction of forest, new plants grow on that land, this type of phenomenon  is called ecological succession.

Answer: CORRECT (SELECTED)

Secondary succession

Explanation:

Secondary succession occurs when a previously occupied area is recolonized after a disturbance kills most, or all, of its community.

_____ is a force caused by air that slows objects down

Answers

Answer:

Drag

Explanation:

Drag is a force caused by air that slows objects down

Friction is a major force that slows the object down, air resistance is a type of frictional force.

What is air resistance?

Air resistance is a kind of frictional force that slows down an object from moving in a particular direction.

During the movement an object has a particular speed for movement, speed depends on how friction works, more friction slows the speed of an object a low friction allows the object to at a particular speed.

Air is a mixture of gases and particles in the atmosphere, these particles create a force during the movement of an object in the air, and these forces decide the actual speed of object movement.

Therefore air resistance is a force that slows the object.

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Match the causes with their effects.
Cause: Convection currents cycle through magma.
Cause: Unstable isotopes inside Earth release energy.
Cause: Iron in Earth’s outer core swirls due to convection currents.
Effect: Radiogenic heat is released.
arrowRight
Effect: Earth has a powerful magnetic field.
arrowRight
Effect: Tectonic plates move.
arrowRight

Answers

1. Effect:  Radiogenic heat released- Cause: convection currents cycle through magma.

2. Effect: Earth has a powerful magnetic field- Cause: Iron in earths outer core swirls due to convection currents.

3. Effect: Tectonic plates move- Cause: unstable isotopes in earth release energy.

What is Convection current?

Convection currents are defined as the result of differential heating where lighter, less dense, warmer materials rise while heavier, more dense, cooler materials sink. This is the movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the Earth's mantle.

Convection currents arise from differences in fluid density that arise due to a temperature gradient, resulting from the continuous replacement of the hot fluid in the region of the heat source with the nearby cold fluid which is known as the natural convection currents.

Thus, Radiogenic heat released- Cause: convection currents cycle through magma.

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Answer:
Effect:

Radiogenic heat is released

Cause:

Unstable isotopes inside Earth release energy

----------

Effect:

Earth has a powerful magnetic field

Cause:

Iron in Earths outer core swirls due to convection currents

----------
Effect:

Tectonic plates move.

Cause:

Convection currents cycle through magma.

-----------

Explanation:

Got it right on Edmentum.

PLS HELP!!
In a normal distribution, the number of organisms exhibiting a phenotype variant near the lowest value is(1 point)
-greater than the number exhibiting a variant near the highest value.
-greater than the number exhibiting a variant near the middle value.
-less than the number exhibiting a variant near the middle value.
-less than the number exhibiting a variant near the highest value.


Kamar is looking for his birth mother. Kamar knows that his blood type is AB and his father’s blood type is heterozygous A. What can Kamar assume about his mother’s blood type?(1 point)
-Kamar’s mother must be either AB or B because blood types AB is considered codominant.
-Kamar’s mother must be AB because blood type AB is inherited from one parent.
-Kamar’s mother must be O because the recessive allele allows for Kamar to get type A from his father.
-Kamar’s mother must be either A or O because blood type AB is considered incomplete dominant.


A statistician collects height data in inches for a school district. Which sample is most likely to produce a normal distribution?(1 point)
-Grade 10-12
Height Range 55 - 60 60 - 65 65 - 70 70 - 75
Frequency 4 9 8 4
-Grades 1-3
Height Range 30 - 35 35 - 40 40 - 45 45 - 50
Frequency 4 1 10 10
-Grades 7-9
Height Range 50 - 55 55 - 60 60 - 65 65 - 70
Frequency 11 5 6 3
-Grade 4-6
Height Range 45 - 50 50 - 55 55 - 60 60 - 65
Frequency 12 8 4 1


The different variants of a trait available to a gene are called(1 point)
-alleles.
-genotypes.
-polygenic traits.
-phenotypes.


A wolf populations’ undercoat thickness follows a normal distribution. Suppose climate change causes the winters to grow colder. Over many generations, the distribution of undercoat thickness in this population will likely(1 point)
-shift toward a thinner coat.
-shift toward a thicker coat.
-remain the same.
-no longer be normal.

HELPPPP PLEASE....
:)

Answers

1 is a: less than...middle value

2 is c: ab or b

3 is d: grade 10-12

4 is a: alleles

5 is a: ..... thicker coat

Explanation: just took this, these are the correct answers for MY quick check. could very well be different for yours. hope this helps though :)

The number of organisms exhibiting a phenotype variant near the lowest value is ; ( C ) Less than the number exhibiting a variant near the middle value.Kamara can assume that ; ( A ) Kamara mother must be either AB or B because blood types AB is considered codominant.The sample that is most likely to produce a normal distribution is ; ( A ) Grade 10-12,  Height Range 55 - 60 60 - 65 65 - 70 70 - 75 , Frequency 4 9 8 4.Various variants of a trait available to a gene are called ( A ) ; Alleles .The undercoat thickness in this population will likely ( B ); shift toward a thicker coat.

The wolves undercoat will grow towards been thicker in order to protect the wolves from extreme cold conditions posed by the winter and  this phenomena is called adaptation.

Blood types of offspring's are determined by the blood groups of both parents therefore if Kamara has a blood type AB his mother will mostly likely have either AB or B blood type.

Alleles are the different variants of a gene in living organisms but they are located at the same position on the chromosome.

Hence we can conclude that answers to the questions are as listed above.

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Please help me with this question

Answers

I’m pretty sure the answer is the second and the last one
I think second one def not the first or third for sure

Enter the correct 4 digit code (no spaces)

Answers

The hidden code in the puzzle is 4321.

How to solve the riddle?

The riddle in the picture has the objective of hiding the order of the numbers so that the reader finds the order. In this puzzle the reader must follow the line of each letter and find the order of the numbers to find the code.

Based on the above, it can be inferred that:

The letter A line leads to the number 4.The letter B line leads to the number 3.The letter C line leads to the number 2.The letter D line leads to the number 1.

So the complete code would be:

4321

Learn more about riddles in: https://brainly.com/question/478260

Answer:

It's actually 3214

Explanation:

Bacteria that generate reactions such as swelling of tissues, and fever in humans are an example of microorganisms that -

A.form mutualistic relationships with cells of other organisms.

B.break down the organic matter of dead plants and animals.

C.are pathogenic and are able to cause disease by killing host cells.

D.live in close association and provide resources for all plants and animals.

Answers

Answer:

B. Break down the organic matter of dead plants and animal

Why is the genotype for a short plant (tt) and not (ss)​

Answers

Answer:

HOZ(homo)YGOUS TALL plant and a PURE SHORT plant

Explanation:

Nun

Which of the following describes erosion caused by glaciers?(2 points)
It forms big ice chunks.
It changes the temperature.
It happens quickly.
It takes a long time.

Answers

Answer:

NUMBER TWO DONE BOIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

Explanation:

help pls!

“How might an energy requirement affect an individual who has a cancerous tumour?”

Answers

Answer:

Cellular respiration describes the series of steps that cells use to break down sugar and other  chemicals to get the energy we need to function.  Energy is stored in the bonds of glucose (like a stretched rubber band), and when glucose is broken down, much of that energy is released.  Some of it is captured in a form that can be used to do work in cells - a molecule called adenosine triphosphate or ATP. The energy that is not captured in ATP is usually given off as heat (one of the things that helps us maintain our normal body temperature).

This molecule provides stability to the phospholipid bilayer and without it the membrane would easily fall apart.

Answers

Answer:

The correct answer is - cholesterol molecules.

Explanation:

Cholesterol molecules are the molecules that acts as a bidirectional regulator for the lipid bilayer as it provides fluidity by raising the melting point of the membrane at high temperature and stabilize the membrane.

On the other hand, it also prevents the membrane from clustering or being tough or stiff by intercalates between the phospholipids at low temperatures. Therefore it is the molecule that provides stability to the membrane.

I will mark branlist


What is the best description of the chromosomes by the end of metaphase of mitosis?


The chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei.


The chromosome pairs collect in a line across the middle of the cell.


The chromosomes separate at the centromere and begin to move apart.


The chromosomes have coiled and become more compact.

Answers

Answer:

The chromosome pairs collect in a line across the middle of the cell.

Explaination: i have  a whole slide show i had to make for science i looked at that

How is the phytoplankton affected by the changes we see in the global carbon cycle, write the claim, evidence, reasoning.

Answers

These tiny organisms consume carbon dioxide from the atmosphere and move it to marine sediments in the deep ocean in a process called "the biological pump". Phytoplankton play a big role in regulating today’s carbon cycles.

PLEASE HELP I FELL ASLEEP IN BIOLOGY CLASS!!?

Answers

Answer: Cell wall

Explanation:

The process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully
expounded by Charles Darwin and is now believed to be the main process that brings about evolution

True
False

Answers

True

The process is called natural selection and was first explored by Charles Darwin in the 19th century.

NATURAL SELECTION is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. This concept was first developed by Darwin (both statements are TRUE).

Darwin referred to evolution as the process of 'descent with modification'.

The main mechanism by which organisms evolve to adapt to their environments is natural selection.

The theory of evolution by natural selection was developed by Darwin and it is now widely accepted as the main cause of evolution.

According to Darwin, species change (evolve) over time, thereby giving rise to new species that share a common ancestor.

In conclusion, NATURAL SELECTION is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of evolution by natural selection was first developed by Darwin (both statements are TRUE).

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A human cell that has 46 chromosomes would have __ daughter cells that each have __ chromosomes after mitosis.

Answers

Answer:

2 daughter cells, 46 chromosomes

Explanation:

Mitosis is reproduction of somatic cells, or body cells. It's end product will always be 2 daughter cells, each identical to one another, therefore meaning, it will also have the same number of chromosomes!

Answer: one daughter cells and each have 23

Explanation: mitosis is the first then meiosis

Animal that live in water is also called as _____?​

Answers

Answer:

aquatic animals......hope it will help you

what type of cells carry out cellular respiration

Answers

all living cells must carry out cellular respiration

Study Guide
Relationships in Ecosystems/ Human Impact
1. Which of the following is NOT correct?
A population is all the organisms of the same species that live in the same area
b. A community is all the populations of different species that live together in the
same area
A population is all the populations of different species that live together in the
seme eres
d. An ecosystem is all of the living and nonliving things in an area
C.

Answers

Huh!??????? What are you saying

what is
Meiosis and Mitosis

Answers

Answer:

mitosis is part of a cell that splits in 2 to make two new nuclei. Meiosis is the special cell division of sexual reproduction, like sperm and egg cells

Explanation:

yep what the other person said

What color would the bby and water turn with plants in the dark

Answers

Answer:

The water is drawn in the xylem through capillary action and is dispersed through out the entire plant from stem to tips of the leaves and petals. When the water is colored, the color from the water can stain the plant, especially if it is a light colored plant, such as the white petals on our flowers.

Explanation:

Other Questions
Which word correctly completes this sentence? Los ___________ son narraciones ficticias que tratan de explicar hechos de la realidad. I need more help ;-; IYHAGSFHDJKOf the following, which is NOT a reason Ulysses attacks the city in The Ciconians?A. The villagers are hostile.B. Ten years of war has made them savage.C. They are greedyD. It will be bad luck not to attack. Your teacher then challenges you to use the items in the envelope to create a model of a carbon-14 atom. Before you begin, you and yourgroup brainstorm ideas for creating your model. Your group suggests the following steps:StepProcedure1use 6 red circles for the nucleus of the atom2use 14 red circles for the nucleus of the atom3add 6 blue circles to the nucleus of the atom4add 8 blue circles to the nucleus of the atom5place 14 yellow circles around the nucleus of the atom6place 6 yellow circles around the nucleus of the atomExhibitsWhich of the following steps should you follow to create a correct model of a Carbon-14 atom?O A. steps 1,4,6O B. steps 1, 3,5o c. steps 2, 3, 6O D. steps 2,4,5O08:11 Explain one way the prevention of illness was different between 1500-1700 and 1700-1900. 4 marksI will give brainiest and reward you with 20 coins but if you need more you can contact me The diagram to the right shows an HIV particle.What is the function of the glycoproteins on the outside of the virus?A. to carry genetic materialB. to propel the virus forwardC. to help the virus invade cellsD. to protect the HIV particle from antibodies Cuantos aos tiene Alberto? Voy a dar brainliest y gracias al la primera respuesta correcta. What happens during fermentation? Guys please help me!1. How do these pictures show aspects of Japanese culture? 2. What similarities with other East Asian countries can you identify in these objects? A fair, 20-sided die with sides labeled 1 through 20 is rolled. Consider the following events, and then answer the question.A: rolling an even numberB: rolling a multiple of 4C: rolling a number greater than 11D: rolling a factor of 20Which probability is the smallest? Segregation meant that black peopleA. were separated from white people in many areas.B. worked and played together with white people.C. were not allowed to become ministers.D. all moved away from Montgomery, Alabama. Answer the questions below according to the instructions given. Please note that responses to BOTH questions must be included in the same submission in order for your examination to be graded; otherwise, it will be returned to you for revision.Write a composition using one of the topics listed below. Your composition needs to be three to five paragraphs long. It must contain an introduction, a body, and a conclusion.For the purpose of this examination, sport is defined as "an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment without a predetermined outcome." If you choose to explain why a certain sport is your favorite, please ensure that the chosen sport fits this definition. Argue for or against the limitation of speed limits. Explain why a certain sport is your favorite. Compare and contrast driving in the winter and driving in the summer. Describe a SINGLE memorable day in your life. Write a letter of complaint. Follow the rules for a formal letter, and use the full-block style. The complaint may be about anything you wish (such as malfunctioning equipment, poor building maintenance, or disruptive noises from a nearby business). You can base your letter on a true experience, or you can make up all the details you need.Please note that a form letter or a template cannot be used in constructing your response to question 2. When a form letter or template is used, you are giving little to no thought to wording or formatting, and you are not actually creating your own complaint; you are simply filling in the blanks of someone else's work.ChecklistAsk yourself these questions after you answer the questions for your exam.Is my composition three to five paragraphs long? (It must include an introduction, body paragraphs, and a conclusion.)Did I select a topic for my composition from the list given in the instructions?Did I fully expand on the topic I selected for my composition? (Example: If you selected to describe a memorable day, you should only describe ONE day.)Does my letter include a complaint?Did I include all parts of a business letter? (This includes a signature! You can use a different font to indicate your signature.)Is my letter written in full-block style?Did I answer both questions on my own, without help from the internet?Are both answers saved in one document?Is my work saved as a Microsoft Word document or in Rich Text Format?If you answered YES to all of the questions, you are ready to submit your work for grading! The House of Representatives shall be composed of Members chosen every second Year by the People of the several States, and the Electors in each State shall have the Qualifications requisite for Electors of the most numerous Branch of the State Legislature.U.S. ConstitutionWhat is the purpose of this section of the US Constitution?to limit the powers of the representativesto establish rules for electing representatives to Congressto explain how the representatives of government will make lawsto show how the three branches of representatives will work together A mattress 39 inches wide80 inches long 11 inches high. How many will fit in a 30 yard dumpster at 8 feet wide 22 feet long 6 feet high. It holds 30 cubic yards of waste. Use Spanish adjecives for female. HelpVosotras nunca ___ ! (ponerse de acuerdo)Mi primo Esteban y yo usualmente ___ inmediatamente despus de una discusin. (reconciliarse)Nosotras ___ las mochilas por accidente. (intercambiarse)La pareja ___ con pequeos regalos todo el tiempo. (sorprenderse)Chiqui y Marco ___ siempre que ___. (abrazarse) (verse)Los novios ___ textos cada tres minutos, todo el da, todos los das! Es demasiado! (escribirse)Nosotros ___ siempre con mucho cario. (besarse)Los recin casados no ___ muy bien todava. (conocerse)Carli y yo ___ a menudo en el caf de la esquina. (encontrarse)Mi mam y mi pap todava ___ con amor. (mirarse)Ellas ___ todo! (contarse) determining slope and y-intercept Jeff and Marcia own a llama farm. On their farm, they have 240 llamas. Each llama they sell earns them a $325.00 profit. If they were to sell 3/5 (three-fifths) of theirllamas, how much total profit would they make?Show your work.A. $31,200.00B. $46,800.00C. $62,400.00D. $78,000.00 A taxi company charges passengers $1.75 for a ride, no matter how long the ride is, and an additional $0.40 for each mile traveled. The rule c = 0.40m + 1.75 describes the relationship between the number of miles m and the total cost of the ride c.a. What is the charge for a 1-mile ride?b. What is the charge for a 2.7-mile ride?A. $0.40; $5.13B. $1.75; $2.15C. $0.40; $1.08D. $2.15; $2.83 HELP! I am really confused and need someone to explain this to me!! Draw two symmetric (not skewed) with the same means but different standard deviations. Explain the similarities or differences in means and standard deviations. PLEASE HELP6x-y=9 ordered pairx,y