All the genetic mutations may occur spontaneously in organisms is t he incidence of such mutations may be increased by what?

Answers

Answer 1

Answer:

Both physical and chemical factors

Explanation:

A mutation is any alteration in the DNA sequence of the genome of a particular cell/organism. Depending on the type and localization, a mutation can be neutral, deleterious, or even beneficial for the individual that possesses it. Moreover, the mutation rate refers to the probability for a mutation to appear in a cell/organism. Exposure to physical environmental factors (e.g. ultraviolet radiation, X-rays, gamma rays, etc) and chemical factors (e.g., bromine) can increase this likelihood.

Answer 2

Answer:

physical and chemical factors

Explanation:

Factors that alter the critical chemical and physical characteristics of ecological systems include temperature, pH electrochemical (redox) potential, and the transparency of air and water.


Related Questions

The Darwinian theory of organic evolution through natural selection affected American religion by a raising awareness of the close spiritual kinship between animals and human beings. b turning most scientists against religion. c causing a revival of the doctrine of original sin. d sparking the rise of new denominations based on modern science. e creating a split between religious conservatives who denied evolution and accomodationists who supported it

Answers

Answer:

.e creating a split between religious conservatives who denied evolution and accomodationists who supported it

Explanation:

The Darwinian theory of organic evolution proposed that all forms of life evolved from more primitive life by differential survival and reproduction (i.e., by natural selection). Moreover, creationism is the religious belief that humans were created by God, whereas accommodationists refer to the persons that endorse cooperation and concession to the viewpoint of the opposition. In this case, Darwinian theory challenged the traditional religious anthropocentric viewpoint on human origins (i.e., humans descended from ape-like creatures by natural selection).

Don't fail me now brainly!!!!
21. For each of the following, state the type of input energy and the useful output

energy.

a. battery

b. gas-powered weed-eater

c. bedside lamp

d. horn on a bicycle






Input Energy

Useful Output Energy

4

Battery







Gas-Powered Weed-eater







Bedside lamp







Horn on a bicycle

Answers

Answer:

Explanation:

if you get the nintindo 64 throw it out a window then call the garbage man hit the folks den shake his hand he will give you the math answer and you have to cll hm on the newest flip phone out right now

Viruses are considered living cells?
A. True

B. False

Answers

From the web: Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.


[tex]what \: is \: chlorophyll \: \: \: {?} [/tex]

Answers

Chlorophyll is essential in photosynthesis, allowing plants to absorb energy from light.
Question:-

What is chlorophyll?

Answer:-

Chlorophyll is a green pigment which helps plants in the process of photosynthesis.

It is only present in Green plants.They allow green plants to absorb sunlight.

- TheExtraterrestrial

Which of the following is not a health effect caused by exposure to volcanic gases?
backaches
suffocation
dizziness
headaches

Answers

Answer:backaches

Explanation:

The volcanic gases would mainly affect your ear, nose or throat and because your back does not rely solely on one of this it shouldn’t be affected

Answer:

backaches

Explanation:

Based on your ideas about energy, where do you see examples of energy in the system you built

Answers

Answer:

Nobody can help you with this without an image. You built something and we need to be able to see it to reply.

Explanation:

There are 20 different amino acids

Answers

Answer: Hi, there your answer is:

Valine, Leucine & Isoleucine

Alanine

Arginine

Glutamine

Lysine

Aspartic acid

Glutamic Acid

Proline

Cysteine

Threonine

Methionine

Histidine

Phenylalanine

Tyrosine

Tryptophan

Asparagine

Glycine

Serine

Explanation:

What's a good cereal name for Platinum? for an example like Platinum Crunch

Answers

Answer:

Platinum Pebbles  

Explanation:

List down the processes that can cause radioactive decay of an element?

Answers

Answer:

Radioactive decay is the loss of elementary particles from an unstable nucleus, ultimately changing the unstable element into another more stable element. There are five types of radioactive decay: alpha emission, beta emission, positron emission, electron capture, and gamma emission

Explanation:

10. Describe what happens in the system shown below. (3 marks)



HELPP WILL MARK BRAINLIEST

Answers

Answer:

this is a circulatory system

in this system the purification of blood is occurs between the lungs and heart

Explanation:

please make me brainlist answer

A 3:1 ratio of tall to short pea plants appearing in the f2 generation lends support to the law of

Answers

Answer:

Mendelian inheritance

Explanation:

HIV binds to Helper T cells of your immune system.
A. True

B. False

Answers

Answer: True

HIV infects a type of white blood cell in the body's immune system called a T-helper cell (also called a CD4 cell). These vital cells keep us healthy by fighting off infections and diseases. HIV cannot reproduce on its own. Instead, the virus attaches itself to a T-helper cell and fuses with it (joins together).

Explanation:

T-cells, the thymus cells, work in a similar way but destroy infected cells rather than manufacture antibodies. In HIV infection, the body mounts a very strong antibody response in the first few weeks that partially works, bringing the viral load down from millions to, on average, about 50,000 copies/ml.

Answer:

The answer is true...

Explanation:

HIV infects a type of white blood cell in the body’s immune system called a T-helper cell (also called a CD4 cell). These vital cells keep us healthy by fighting off infections and diseases.

HIV cannot reproduce on its own. Instead, the virus attaches itself to a T-helper cell and fuses with it (joins together). It then takes control of the cell’s DNA, makes copies of itself inside the cell, and finally releases more HIV into the blood. HIV will continue to multiply and spread throughout the body – a process called the HIV lifecycle.

In this way, HIV weakens the body’s natural defences and over time severely damages the immune system. How quickly the virus develops depends on a person’s general health, how quickly they are diagnosed and start antiretroviral treatment, and how consistently they take their treatment

Which set of jobs would be found in
the field of disease evolution?
A. genetic engineering, microbiologist, and
biomanufacturering
B. infectious disease specialist and virologist
C. zoologist, marine biologist, and animal biologist
D. biochemist and epidemiologist

Answers

i’m guessing b but i have no clue

Protists represent an important evolutionary step between and A. fungi, plants B. bacteria, animals O C. single celled organisms, multicelled organisms D. plants, animals Peser Selection​

Answers

Protists represent an important evolutionary step between single-celled organisms and multi-celled organisms.

Protists have similar DNA to the DNA of cyanobacteria. This similarity show the evolutionary relationship between cyanobacteria and algae in which cyanobacteria is a single celled organism whereas algae is multi-celled organism so from this discussion we can conclude that protists is an important evolutionary step between single celled organism and multi-celled organism.

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What living thing on the plains of Africa is a producer?
A)
the sun
B)
the grass
C)
the cheetah
D)
the worms in the soil

Answers

Answer:

B) the grass

Explanation:

Because producers go through processes like chemosynthesis and photosynthesis and grass which is a plant goes through photosynthesis.

Describe the interaction between the digestive and circulatory system of the earthworm.

Answers

the digestive system of the earthworm consists of the alimentary canal and the digestive glands. the alimentary canal runs as a straight tube throughout the length of the body from the mouth to anus. the mouth opens into the buccal cavity which occupies the 1 and 2 segments

The terrestrial invertebrate that is the tube-like organism and belongs to phylum Annelida are called earthworms.

The earthworm has a closed circulatory system and has vessels spread all over its body. The blood circulation and transport of oxygen occur through blood vessels.

The digestive system starts from its mouth towards the end till the anus. The intestine of earthworms has blood vessels that aid in absorption and in transporting nutrients and food in body parts.

The nutrients and food produced in the crop and intestine get absorbed in the vessels of the circulatory system that are present in the digestive organs.

In this way, the digestive and circulatory system interacts with each other.

To learn more about digestive and circulatory system of earthworm follow the link:

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If you forget your water bottle when you go for a long walk on a warm day,
what signal would most likely be sent to your kidneys?

Answers

Answer:

C

Explanation:

On detecting less amount of water in blood the hypothalamus gives signals for releasing the anti-diuretic hormone which causes kidneys to remove lesser amount of water from the blood.

And your Answer is Best management practices (BMPs) are methods that have been determined to be the most effective and practical means of preventing or reducing non-point source pollution to help achieve water quality goals. BMPS includes both measures to prevent pollution and measures to mitigate the pollution.

Answers

Answer:

Use Fertilizers Wisely.

Apply Pesticides Wisely.

Use Landscaping Practices that Prevent Erosion.

Wash Your Vehicle Wisely.

Dispose of Pet Waste.

Use and Dispose of Household Chemicals Safely.

Evaluate Existing Roads

can natural selection happen in the hardy-weinberg equilibrum

Answers

Answer:

yes

Explanation:

The Hardy-Weinberg equilibrium can be disturbed by a number of forces, including mutations, natural selection, nonrandom mating, genetic drift, and gene flow. ... Because all of these disruptive forces commonly occur in nature, the Hardy-Weinberg equilibrium rarely applies in reality.

You can turn on and turn off ____ to make different proteins.

Answers

Answer:

Genes

Explanation:

In this situation its called gene regulation

10
Which of the following are true about DNA?
Choose all that apply:
It is a double helix
It contains thymine
It is the "recipe" for proteins
It is made of amino acids

Answers

The answer is that DNA has a double helix shape. Hope it helped.

i don't know how to do this one

Answers

Answer:

what don't you know how to do?

give two examples of what a living thing can do once it has converted the energy from food into usable forms of energy.​

Answers

Answer:

When the chemical energy in food is transferred to cells in the body, the energy can be transformed into energy used by the body to do many things like run, ride a bike, do the dishes, pump the heart, and keep the body warm.

Two examples of what a living thing can do once it has converted the energy from food into usable forms of energy are growth, reproduction, and movement, and by using the energy, they survive in the ecosystem.

What is the significance of the energy from food?

Energy from food can be obtained, and that energy is further used for many reasons, such as metabolism and movement, and a living organism can use it to power its muscles for movement such as running and swimming. Apart from that, the energy is used for growth and reproduction, which allow an organism to develop and produce offspring.

Hence, two examples of what a living thing can do once it has converted the energy from food into usable forms of energy are growth, reproduction, and movement, and by using the energy, they survive in the ecosystem.

Learn more about the energy in food here.

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The part of the lymphatic system that filters the blood is which of the following?


A. Lymph nodes

B. lymph

C. Lymphatic Vessels

Answers

The part of the lymphatic system that filters the blood is which of the following?


A. Lymph nodes

Matthias Schleiden and Theodor Schwann made which contribution to science?
A. Discovered that new organisms do not spontaneously arrive in suitable conditions, but must be brought there.
B. Discovered the process plants use for energy, photosynthesis.
C. Discovered a basic principle of chemistry, that all matter is composed of atoms.
D. Discovered a basic principle of biology, that all plants and animals are made of cells.

Answers

The answer might be D

Matthias Schleiden and Theodor Schwann made a significant contribution to science as they discovered a basic principle of biology, that all plants and animals are made of cells. So the correct option is option D.

Matthias Schleiden and Theodor Schwann made the contribution of discovering a fundamental principle in biology known as the cell theory. In the 1830s, they independently proposed that all plants and animals are composed of cells. Their work laid the foundation for our understanding of the structural and functional units of life. Together, the contributions of Schleiden and Schwann formed the basis of the cell theory, The correct option is option D.

Learn more about the cell theory here.

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plz help! Which of the following describes species diversity of a community?

The number of different species present in the community
The measure of species richness and relative abundance of different species
The proportional abundance of different species in a community
The number of mutualistic interactions in a community

Answers

Answer:

The proportional abundance of different species in a community

Answer:

The measure of species richness and relative abundance of different species

Like this Hair Follicle Cell, EVERY cell in your body, contains:
A. half a set of DNA
B. a whole set of DNA
GUYS PLS HELP ASAP!!!

Answers

Answer:

B: A whole set

Explanation:

The only cells in your body that don't are sex cells. ie. Eggs and Sperm

Give any 2 significance of nitrogen cycle to green plant

Answers

Nitrogen is the most abundant element in our planet’s atmosphere. Approximately 78% of the atmosphere is made up of nitrogen gas (N2).

Plant uptake of nitrogen compounds

Once nitrogen is converted into compounds like ammonium and nitrate, these can be taken up from soils by plants and then the nitrogen can be used to form macromolecules like proteins and nucleic acids.

Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

As part of these life processes, nitrogen is transformed from one chemical form to another. The transformations that nitrogen undergoes as it moves between the atmosphere, the land and living things make up the nitrogen cycle.

Fixation

Nitrogen in its gaseous form (N2) can’t be used by most living things. It has to be converted or ‘fixed’ to a more usable form through a process called fixation. There are three ways nitrogen can be fixed to be useful for living things:

Ype the correct answer in the box. Spell all words correctly. What is the process of using natural resources efficiently to ensure their availability for future generations known as? is the process of using natural resources efficiently to ensure their availability for future generations.

Answers

Answer:

The correct answer is - Sustainable development.

Explanation:

Sustainable development is the process of using or utilizing the natural resources in the present in such an efficient way that there will be resources for future generations without compromising their needs.

It is essential in the current situation as people overexploiting the natural resources that it is quite possible there will very few resources will be left for future generations.

2. The long-term survival of any species of organism is possible only if the organisms can -
A migrate when temperatures change C find protection from predators
B reproduce successfully
D locate a constant food source
(If you want to give me the rest of the answers I will like that also)

Answers

Answer:

may be the answer is B. reproduce successfully

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They plan to take out a $100,000 mortgage on the house and put $20,000 as a down payment. The bank informs them that with a 15-year mortgage their monthly payment would be $745.86 and with a 30-year mortgage their monthly payment would be $546.01. Determine the amount they would save on the cost of the house if they selected the 15-year mortgage rather than the 30-year mortgage. What helps the reader identify the audience for a literary text? Can someone help me with this, please? What are the eight major mineral groups? The Williams Supply Company sells for $50 one product that it purchases for $20. Budgeted sales in total dollars for the year are $3,000,000. The sales information needed for preparing the July budget follows: Month Sales Revenue May $ 175,000 June 240,000 July 295,000 August 320,000 Account balances at July 1 include these: Cash $ 125,000 Merchandise inventory 47,200 Accounts receivable (sales) 84,530 Accounts payable (purchases) 47,200The company pays for one-half of its purchases in the month of purchase and the remainder in the following month. End-of-month inventory must be 40% of the budgeted sales in units for the next month. A 2% cash discount on sales is allowed if payment is made during the month of sale. Experience indicates that 60% of the billings will be collected during the month of sale, 25% in the following month, 12% in the second following month, and 3% will be uncollectible. Total budgeted selling and administrative expenses (excluding bad debts) for the fiscal year are estimated at $1,200,000, of which three-fourths is fixed expense (inclusive of a $36,000 annual depreciation charge). 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