Possible answers:
A= DNA Replication
B= Crossing over
C= A mutation
D= Meiosis
Answer:
C
Explanation:
DNA replication should copy the DNA exactly, so should not produce any changes to the DNA sequence.
Crossing over does not occur in prokaryotes, it only occurs in eukaryotes. The same is true for meiosis, it does not occur in prokaryotes as it is a specialized type of cell division that creates gametes in multicellular organisms
Mutations create changes to the DNA sequence. By chance, occasionally these changes can be beneficial and give the new cell an evolutionary advantage. For example resistance to antibiotics, or an ability to digest a new nutrient.
how selective breeding help us in our daily life
Answer:
Most of the food, specifically crops we eat, are a product of selective breeding
Explanation:
For example, cabbage, kale, broccoli, cauliflower, or plants from the Brassica genus and family all came from one plant produced through selecting specific desirable traits.
Describe the function of:
Golgi apparatus
Answer:
A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
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Can someone define tropism and describe the different types of tropism exhibited in plants?
Answer:
Hello.
Tropism is specific to the direction of the stimulus. Plants can either display a negative or positive movement in response to a stimulus. It is positive tropism when the movement is towards the direction of stimuli while it is negative tropism when the movement is away from the stimuli.
Tropism is a response to certain stimuli. A positive tropism is moving towards the stimuli, while a negative tropism is moving away from a stimuli.
Positive Phototropism - Growing towards light
Negative Phototropism - Growing away from light
Positive Thigmotropism- Moving towards touch
Negative Thigmotropism- Moving away from touch
Positive Hydrotropism - Growing towards water
Negative Hydrotropism - Growing away from water
Positive Gravitropism - Growing towards ground
Negative Gravitropism - Growing upwards
Which of the following best describes a carbon reservoir. A. Carbon storage B. Carbon destroyer. C carbon consumer
Rhonda has severe thrush, a fungal infection of her mouth and throat. How should the fungicide be administered
Answer:
She should be tested for a respiratory v i r u s or any type of throat disease immediately and medically monitored. Otherwise, she should be held in hands of medical care. This infection can be caused by bacteria that may have slipped through, especially if you don't keep your mouth hygiene high. However, if the medical system cannot handle this, they may need to take further measures, such as surgery to attempt removing it.
What causes an earthquake to happen?
Answer: the tectonic plates
Explanation:
I know what the atomic number of the atom is but I don’t know what the number of electrons is how would you respond
The overall equation for the cellular respiration of glucose is.
Answer:
Carbon dioxide + Water Glucose (sugar) + Oxygen CO2 + H2O C6H12O6 + 6O2
Read the article below. Then answer the questions that follow.
MONOCULTURE AND THE FOOD SUPPLY
In 2011, scientists announced that the Cavendish banana, the banana that most frequently makes it to American consumers, could be wiped out by a fungus if the fungus reached fields in Latin America where the banana is grown. It had happened before with the Gros Michel banana, which was wiped out between 1906 and 1960 and is no longer grown by farmers. The reason for scientists' concern: monoculture.
Monoculture is a practice common among farmers. In most fields, you will find a single crop and these plants are not very genetically diverse. This means they are less able to adapt to environmental changes and less able to fight off diseases. Many scientists are concerned that the practice of monoculture farming means that many crops, including bananas, may be subject to total loss or even extinction.
Heirloom Plants
One way that scientists think that food supplies can be protected is by using heirloom plants. An heirloom plant is a plant that was once grown by farmers but is not used in modern monoculture farms. Many heirloom plants are more genetically diverse than modern varieties, which mean they are better able to adapt to environmental change. They are also more likely to survive an attack by a pest or infection by a disease or fungus. However, heirloom plants usually do not produce as much food as modern varieties do.
Organic Farming
Organic farming combines older agricultural practices with modern practices and does not involve the use of synthetic materials such as manmade fertilizers and pesticides. It relies on scientific knowledge about the interactions among organisms and about natural materials that can be used to fertilize plants and control pests. Organic farming does not generally involve monoculture, and an organic farm will have many different kinds of crops. Organic farming practices usually reduce the chance of total crop loss, but like heirloom plants, organic farms are often less productive than conventional farms in terms of volume of food.
Genetically Modified Organisms
Genetically modified organisms, or GMOs, are organisms that have been genetically engineered by people. Many scientists think that concerns over the risks of monoculture can be alleviated by directly changing the genes of crops. They argue that the crops can be given resistance to pests and disease, can be modified to withstand drought, and can be engineered to produce more food. However, many people are concerned about the safety of GMOs, so they are highly controversial. The technology is new and involves the use of bacteria to insert genetic material, so people are concerned that the organisms may negatively affect human health.
Because of what scientists have learned about monoculture, they are:
not pushing for a change in farming.
asking for legislation mandating GMOs.
suggesting ways to protect food supplies.
telling farmers they need to grow fewer kinds of crops.
Answer: suggesting ways to protect food supplies
Explanation:
I need help please as soon as possible!
Answer:
A-5
B-6
C-2
D-1
E-4
F-3
What type of data is non numerical
Answer:
qualitative
Explanation:
There are 2 main types of data - qualitative and quantitative.
Qualitative data comes in the form of a description; such as your favorite color or movie. Quantitative is when your data is in number; ie how many pets you own.
A useful trick for remembering which is which: quantitative means quantity.
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When making a Punnett Square for a monohybrid cross, you are only focusing on ONE trait. *
10 points
True
False
Answer
True hope it helps please mark me
As you move up the energy
pyramid, what is happening
to the amount of energy?
A. Energy is being lost.
B. Energy doubles
C. Energy is being
gained
D. Energy is being lost
by 50%.
Answer:
the amount of energy decreases when you go up
the pyramid gets smaller
Explanation:
hope this helps!
have a good day!
Whats the difference between transcription and translation.
Answer:
transcription is the process of listening to audio, video etc.,and writing into text form in the exact wording that the original speaker used whiles translation is the process of converting a text file from one language to another language
Fill in the blanks to complete each statement about igneous rock formation.
rocks form when
cools below Earth's surface.
rocks form when
cools on Earth's surface.
Answer:
NTRUSIVE, MAGMA
EXTRUSIVE, LAVA
Explanation:
Which of the following would be
considered an example of genetic
modification?
A. monitoring the offspring of a plant to see the different
types
B. rotating crops in a field
C. adding a gene to the DNA of a cow to produce more milk
D. releasing ladybugs on a field to eat pest insects
The example of genetic modification is adding a gene to the DNA of a cow to produce more milk. Thus, option C is correct.
What is genetically modified organisms?Genetically modified organism are those organisms in which the technology of genetic engineering is used to change their genetic makeup. Due to this change in genetic makeup allow the organisms to resist against disease causing microorganisms, pesticides and also increased the productivity of crops. In animals, genes are change to increase milk or meat production.
I would not be willing to eat the genetically altered crops. This is majorly because extensive research has not been carried out on these crops to ascertain if there are any future possible side effects of eating these foods. It is very essential that long term study be carried out on these crops to determine their full effects on humans.
Therefore, The example of genetic modification is adding a gene to the DNA of a cow to produce more milk. Thus, option C is correct.
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What type of transport is used for glucose in blood and intestinal cells
What interactions occur between two hexane molecules?.
Hexane do not have any dipole-dipole interactions because they are non-polar molecules. Dispersion forces will occur between two hexane molecules.
What are Intermolecular forces?The forces of attraction present between atoms, molecules and ions when they are present close to each other , this type of force is known as Intermolecular Forces. An intermolecular force is experienced between two particles when a positively (+) and negatively (-) charged particles are attract to each other.
These forces are weak in nature when these molecules do not possess strong forces of attraction between them resulting in a repulsive form.
There exist four types of intermolecular forces which are as follows:
1. Ionic bonds
2. Hydrogen bonding
3.Van der Waals dipole-dipole interactions
4. Van der Waals dispersion forces
Among all the above mentioned forces, Ionic Bonds are the strongest Intermolecular force.
Thus, hexane do not have any dipole-dipole interactions because they are non-polar molecules. Dispersion forces will occur between two hexane molecules.
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Do this for me please - correct answer gets brainliest!
Answer: cells, tissue, organs, organ systems, and organisms.
Explanation: cells. Tissues are made from cells of a similar type. Organs are made from tissues, and systems are made from several organs. hopefully this helped :)
I need help pls help me fast
Answer:
B. Their gene combinations for the fur color trait are different
I hope this helps you
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The increasing use of internal combustion engines could eventually deplete which resource?.
Energy that are not renewable can be
exhausted and the increasing use of internal combustion engines could eventually deplete petroleum.
What is petroleum?Petroleum are fuel that are mainly produced from natural gas. This includes crude oil and some others hydrocarbons.
This fuel are used by vehicles, heavy machines to generate energy. The energy is a nonrenewable one.
Therefore, The increasing use of internal combustion engines could eventually deplete petroleum energy.
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gray wolf vs grizzly bear. Who will win?
Answer:
Grizzly bear, give me brainliest answer pls
Convert 75 miles to kilometers. 1 km = 0.62 mi
Answer:
120.701
Explanation:
Answer:
120.968 km
Step-by-step explanation :
The size of a tsunami depends on the energy involved during its formation. which of these events is not likely to cause a tsunami?
a.
an earthquake beneath the ocean floor
b.
a massive underwater landslide
c.
the rise and fall of ocean tides
d.
an avalanche caused by melting ice caps
Answer:
C-the rise and fall of ocean tides on edmentum
Explanation:
Tidal waves do not produce tsunamis, and they are significantly less predictable than tide-related waves. Therefore, option (C) is correct.
What is Tsunami?A tsunami is a succession of waves in a body of water brought on by the shifting of a significant amount of water, typically in an ocean or a sizable lake. A tsunami can be produced by earthquakes, volcanic eruptions, and other undersea explosions that occur above or below the surface of the water.
Other possible effects include the devastation of homes and businesses, ports and harbors, cultural resources, utilities, and crucial infrastructure and facilities, in addition to the loss of life and widespread injury. Access to essential utilities including water, sewer, and power may be lost.
Therefore , option (C) the rise and fall of ocean tides do not result into tsunami.
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When a biosphere resource is used up faster than it can be replaced, it is because
A it is a natural resource.
B it can be replaced in a short amount of time.
C the resource forms very quickly.
D the resource forms very slowly.
The statement (B) is correct. Biosphere can be replaced in a short amount of time.
What is biosphere?The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth. The biosphere is virtually a closed system with regard to matter, with minimal inputs and outputs.
Moreover, the biosphere is the region of the earth that encompasses all living organisms: plants, animals and bacteria. It is a feature that distinguishes the earth from the other planets in the solar system.
Therefore, the portions or regions where organisms are found are collectively called the biosphere. Thus, it can also be said that the biosphere is the sum of all the ecosystems on Earth.
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please help!!
Which of the following is the best example of a heterogeneous mixture?
A. Lemonade made of water, lemonade powder mix, and sugar.
B. An omelet made of scrambled eggs and cheddar cheese.
C. Trail mix made of raisins, peanuts, and chocolate candies.
D. A glass of ice water made of ice cubes and pure water.
Answer:
I believe it is an omelet
Explanation:
heterogeneous mixtures consist of visibly different substances
A heterogeneous suspended mixture is created by the omelet. A suspension is a mixture of two heterogeneous substances in which one is finely split and distributed. Thus, option B is correct.
What is heterogeneous mixture?Egg yolks produce emulsions, which are unmixable mixtures of two or more liquids.
Vegetable soup is a complex concoction. Each mouthful of soup will include differing proportions of the various vegetables and other ingredients.
A heterogeneous mixture is one that contains two or more substances. Examples include conglomerate rocks, water and oil, salads, trail mix, and mixes of sand and water or sand with iron filings (not cement).
Therefore, An omelet made of scrambled eggs and cheddar cheese.
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( last question!!!)
Why is it important to aquatic life (in ponds and lakes) that water freezes top down?
Answer:
If ice were to form from the bottom of a lake or pond upwards, all life in that water would eventually freeze and die. Freezing of water from the top down is critical for aquatic life to survive in brutally cold winters, since surface ice actually helps insulate and slow the cooling of the water below.
Please Help Quick ASAP Hurry
A species of squirrels were split in half when a tornado swept through the forest.
Half of the squirrels ended up in an environment near a pond. The other half ended up on rocky ground. They were too far apart to reunite. Ten years later, both of the squirrel populations' allele frequencies had changed to be more fit for their environments. The pond squirrel population and the rocky ground squirrel populations could no longer mate together.
What was the cause of this speciation?
A. geographic isolation
B. gene flow
C. a decrease in the mutation rate
D. a change in climate
Geographic isolation was the cause of this speciation (Option A). It led to reproductive isolation.
What is speciation?Speciation refers to the separation of one species into two or more species due to the emergence of divergence.
The reduction in gene flow due to geographic isolation leads to the emergence of reproductive barriers.
In consequence, these reproductive barriers can be understood as a consequence of geographic isolation.
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________ refers to the amount of force a muscle, or group of muscles, is capable of exerting in one contraction.
Answer:
Muscular strength.
Which of the following processes causes the release of nitrogen back in to the atmosphere?
A.
nitrification
B.
denitrification
C.
ammonification
Answer:
A. nitrification
B. denitrification
C. ammonification
B. Denitrification
Answer:
denitrification
Explanation: Got it right on test