Answer:
B. separating strands of DNA
Gel electrophoresis used for separating strands of DNA
What is electrophoresis?Electrophoresis can be defined as a technique used to separate molecules of DNA, RNA or protein molecules on the basis of their electrical charge and size
It also used to identify microorganismsIt is also used in genetic testingElectrophoresis analysis is used in forensics to compare DNA,Below are four major components of gel electrophoresis:
DNA is extractedIsolation and amplification of DNADNA added to the gel wellsElectric current applied to the gel.Learn more about gel electrophoresis:
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some of the advantages of inorganic farming.
Answer:
With the use of pesticides, farming can be faster and it also detracts insects and weeds
Answer:
One advantage inorganic fertilizers offer is that they are fast acting. These nutrient-rich salts dissolve quickly and are immediately available to the plants depending on them to provide essential nourishment in the form of nitrogen, phosphorus and potassium.Organic fertilizers usually contain plant nutrients in low concentrations. Since many chemical/inorganic fertilizers are concentrated and very soluble, it's easier to apply too much and damage your plants. Fresh, non-composted manure can damage your plants as well, because some manure contains harmful amounts of salts
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Explain the central dogma of molecular biology. please don't define it or state what it says.
Answer:
The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system. it is often stated as "DNA makes RNA, and RNA makes protein", although this is not its original meaning.This states that once "information" has passed into protein it cannot get out again.
Explanation:
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What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Answer:
Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and die.
second question not sure sorry
So how you liking Earth? Are you loving your existence ?
No, not really. I'm only here because I need points so ask a question for school.
Answer:
CHING CHONG CHINKY WONG
Explanation:
What is chemistry?
A. the study of living things and how they change
B. the study of matter and how it changes
C.The study of matter and how it moves
D. The study of what living things are made of
WILL MARK MOST BRAINIEST OR LIKE ALL YOUR TIK TOKS L M A O
Answer:
B. the study of matter and how it changes
Explanation:
define the ratio of sperm to egg?
Answer:
1,2 × 10⁹ : 1
Explanation:
In fact, the average male will produce roughly 525 billion sperm cells over a lifetime and shed at least one billion of them per month. A healthy adult male can release between 40 million and 1.2 billion sperm cells in a single ejaculation.
Explanation:
Therefore, a standard sperm to egg ratio of 1 × 105 sperm per egg is recommended for fertilization in Atlantic cod. At the 1 × 103:1, 5 × 103:1, and 1 × 104:1 sperm to egg ratios maximum fertilization occurred after 30 min sperm to egg contact time.
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The stems of horsetails contain:
A. spores
B. utensils
C. silica
Why does light from the sun melt the plastic when light from the desk lamp does not
Answer:
Because the sun gives off a type of light that carries energy, and light from the desk lamp does not.
Explanation:
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.
Lamps are electrical devices that use electrical energy in the form of electrical current.
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A pot holds 324 milliliters of water. How many liters will 19 pots hold?
Answer:
6156 milliliters of water or 6.156 liters of water. All you have to do is go like 324 X 19 = ? Then you just multiply it out and it will look like 324 X 19 = 6156 Then you divide 6156 by 1000 which will look like this 6156 / 1000 = ? Then you work it out and it will look like this once you are done 6156 / 1000 = 6.156
Explanation:
I hope that this helps!
Answer:
6156 i got the anwser from the other dude because i need points bad...so all credit to him
Explanation:
Which statements accurately describe carbon? Check all that apply.
Carbon has fourteen valence electrons.
Carbon forms millions of known compounds.
Carbon can only form single covalent bonds.
Carbon bonds with oxygen, nitrogen, sulfur, and phosphorus.
O Carbon bonds with halogens such as chlorine and iodine.
Answer:
B, D, E
Explanation:
Just did it on edge 2020
Carbon is the element with the atomic number six. It can form millions of known compounds and can bond with nitrogen, phosphorus, oxygen, and sulfur, as well as halogens. Thus, options B, D, and E are correct.
What are carbons?Carbon is studied under carbon chemistry and is the major part of organic chemistry. It is an element in the periodic table with the atomic number six and a mass of 12 amu.
The carbon is known to be unreactive and can form a covalent bond by sharing its four valence electron. It can form bonds with oxygen, sulfur, nitrogen, and phosphorus.
It can also bond with halogens like chlorine and iodine to form carbon tetrachloride by sharing its valence electron in its outer shell to form the compounds.
Therefore, options B, D, and E. carbons links with various elements through covalent bonds.
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During photosynthesis which product is formed that cannot be broken into smaller units?
Answer:
oxygen
Explanation:
6CO2 + 6H2O + light ----> C6H12O6 + 6O2
Oxygen (O2) is an element, so it cannot be broken on smaller units.
Answer:
the Glucose
Explanation:
А (blank)
is a chemical substance that organisms require to live.
Answer:
Nutrient
Explanation:
Nutrients are compounds in foods which are essential to life and health of living organisms, providing them with energy. They are the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients:
Carbohydrates,Lipids (fats),Proteins,Vitamins,Minerals,Water.forests are bio diversity hotspots why ?
Answer:
Read below
Explanation:
Forests have many different types of life because it offers a wide range of food and shelter for many organisms. (I'm sorry this isn't very long but it is why.)
state two proteins in blood which are responsible for determine the blood group of a person
Answer:
DNA
Explanation:
A person DNA determines the type of enzymes they have, and, therefore, the type of sugar antigens that end up on their red blood cells . In contrast , the antigens of the Rh blood group are proteins . A person DNA holds the information for producing the proteins antigens
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Which process is shown in the plant cell below?
A= cell growth
B= cell reproduction
C= metamorphosis
D= photosynthesis
The given process shown in the image is cell reproduction. Cell reproduction takes place by mitosis and meiosis.
What is cell reproduction?Mitosis and meiosis are the two distinct processes of cell division. When people talk about "cell division," they typically mean mitosis, which is the process of creating new cells for the body. The cell division process known as meiosis is what produces egg and sperm cells.
A vital process for life is mitosis. A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes. Due to the importance of this procedure, specific genes carefully regulate each phase of mitosis.
Meiosis, the second sort of cell division, makes sure that each generation of people has the same number of chromosomes.
Therefore, The given process shown in the image is cell reproduction. Cell reproduction takes place by mitosis and meiosis.
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What is the main function of the structure labeled A?
It attracts insects and other animals.
It moves the pollen to the ovaries.
It catches pollen.
It produces pollen.
Answer:
D
Explanation:
I did the assignment
The main function of the structure labeled A is it produces pollen. Therefore, the correct option is D.
What is a pollen?Pollen is a microscopic, powdery substance produced by the male reproductive organs of seed plants. It is made up of cells that contain the male gametes (reproductive cells) and is responsible for fertilizing the female reproductive cells (ovules) to produce seeds.
Pollen is often carried from one plant to another by wind, insects, or other animals, where it can then come into contact with the female reproductive organs of a different plant.
If the pollen comes into contact with a receptive ovule, it can fertilize the ovule and produce a seed. Therefore, the correct option is D.
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The question is incomplete, but most probably the complete question is,
What is the main function of the structure labeled A?
A. It attracts insects and other animals.
B. It moves the pollen to the ovaries.
C. It catches pollen.
D. It produces pollen.
The Serengeti region of Africa contains a population of cheetahs and a population of lions. Studies have shown that the cheetah population has very low genetic diversity, while the genetic diversity of the lion population is quite high. The cheetah population is also much smaller than the lion population. Both populations are vulnerable to infection with a particular virus that can be fatal in both species. What is the most likely outcome if both populations are infected with this virus?
A.
The cheetah population is more likely to survive because there are fewer individuals for the virus to attack.
B.
The lion population is more likely to survive because larger populations are immune to viruses.
C.
The cheetah population is more likely to survive because lower genetic diversity increases immunity to viruses.
D.
The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
Answer:
D. The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
Explanation:
Since lions have greater genetic diversity it is likely that there's one or two lions that have a trait to resist or kill the virus thus won't be infected, whereas, since cheetah's have low genetic diversity and low population size it is likely that they have little to no chance to surviving this virus attack since the genetic makeup is similar among the members of cheetah species.
Answer:
d
Explanation:
plato
A plant growing in a pot is more likely to be affected by a shortage (lack) of minerals than a plant growing in a garden.
Give the reason for this.
What most directly causes hypertension?
Answer:
hypertension is caused by stress and salt intake
Is there lipids in tofu
Answer:
NOPE
Explanation:
hypothesize how many pennies you believe a floating boat made out of a piece of aluminum foil about the size of your palm could hold before sinking.
A
0 pennies
B
1- 10 pennies
C
11-50 pennies
D
Greater than 50 pennies
The primary way in which toddlers play is
A. dramatic play.
B. exploration.
C. art.
D. block building.
Answer:
D
Explanation:
During the process of mountain building, earthquakes sometimes occur along continental-continental convergent boundaries. Which statement best describes the motion of the plates along these boundaries that causes the earthquakes?
Answer:
Although you have not put the answer options, the movement of the plates in the situation shown above occurs with the approach of their continental plates that collide and bend due to the impact.
Explanation:
The converging movement of the plates indicates that two plates are moving towards each other until they collide. When these two plates are continental, the movement is called continental-continental convergent.
As the two continental plates have the same density, the impact between the two causes them to bend and not sink into each other.
Answer:
D) the plates smash together with no subduction
Explanation:
Got it right!
Who first suggested the theory of evolution by natural selection?
O A. Charles Darwin
B. Wilhelm Weinberg
C. Gregor Mendel
D. Thomas Malthus
Charles Darwin first suggested the theory of evolution by natural selection. Therefore, option (A) is correct.
Who was Charles Darwin?Darwin was a British naturalist who conducted extensive research and observation during his travels around the world, and his work culminated in the publication of "On the Origin of Species" in 1859. In this seminal work, Darwin proposed that species evolve over time through a process he called natural selection, which involves the differential survival and reproduction of individuals with advantageous traits.
This theory challenged the prevailing view of species as unchanging, fixed entities and revolutionized the field of biology. While Darwin was not the first to propose the idea of evolution, his theory of natural selection provided a mechanism to explain how it occurs and remains one of the most important and influential ideas in the history of science.
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3 ways in which a country address or improve the problem of illegal immigration
Answer: Illegal immigration can be defined as the migration of the people into another country by violating the immigration laws of the country being visited.
Explanation:
The three ways in which the country can address or improve the problem of illegal immigration are as follows:
1. The country can impose strict immigration laws on people who are native of other countries.
2. The country can prohibit schooling and education of children belonging to unauthorized citizenship.
3. The country can also prohibit the food availability and driving licences of the people belonging to the other country with unauthorized citizenship.
Answer:
No Idea
Explanation: I don't have an answer but I just want to say, Thanks Surnia. :) This really helped me. I was about to give up.
Kim knows that today’s lab investigation will involve heating liquids over an open flame. Which apparel choice would indicate that Kim planned to stay safe during the investigation
Answer:
Apron, gloves, closed toe shoes, goggles. Kim should also tie long hair back if she has it and should roll long sleeves up.
Explanation:
Aprons, closed toe shoes, and goggles will prevent any of the liquid being heated from burning and harming her skin or eyes.
Gloves are needed to protect her hands from heat and the liquid as well.
Long hair should be tied back to prevent it from being burned or harmed from the liquid, and long sleeves need to be rolled up to prevent them from being caught on fire or dragging into the liquid.
Answer:
a lab coat with long sleeves
Explanation:
i just took the test
Once arriving at the ribosome, which process will begin next?
Answer:
Translation of genetic code for protein formation
Explanation:
Answer: Translation
Explanation: trust me I got it correct
The lock and key mechanism refers to
Explain why the Panama disease has such a negative effect on Gros bananas
Answer:
Fusarium wilt of banana, popularly known as Panama disease, is a lethal fungal disease caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (Foc). ... The fungus enters the plant through the roots and colonizes the xylem vessels thereby blocking the flow of water and nutrients.
Explanation:
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Panama disease is a fungal pathogen that was discovered on an Australian banana farm in 1876. The disease causes fusarium wilt in banana plants, eventually killing the crop.
What is Panama disease?Panama disease, also known as banana wilt, is a devastating banana disease caused by the soil-inhabiting fungus Fusarium oxysporum forma specialis cubense.
Panama disease is a type of fusarium wilt, that is found throughout the tropics and can be found wherever susceptible banana cultivars are grown.
Panama disease is a fungal pathogen that was discovered on an Australian banana farm in 1876. The disease causes fusarium wilt in banana plants, eventually killing the crop.
Thus, this is why Panama disease has such a negative effect on Gros bananas.
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The extract of which gymnosperm seed is used to help improve memory?
Answer:
Ginkgo
Explanation:
Ginkgo improves memory and enhance circulation and metabolism in the brain.
Answer:
ginkgo
Explanation:
ginkgo seed is used to help improve memory
