The fundamental goal of irrigation, which is to augment water provided by rainfall in order to increase crop yields and/or crop quality, hasn't changed much through time, despite substantial technological advancements.
Crop irrigation is an agricultural practise that has been used for many centuries in human history. The various forms of irrigation include
sprinkler irrigationsurface irrigationdrip irrigationsub-irrigationmanual irrigation.There are five different irrigation methods that can artificially supply water to plants:
Flooding or furrow irrigation involves completely soaking the soil surface and moving the water by gravity through the area. Nutrients, hydrogen, and oxygen are distributed to your roots more consistently with irrigation. High-pressure sprinklers placed in the field are used to water crops; they can be stationary or moved by manually.
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Which of the following are
polysaccharides created from?
A. polymers
B. monomers
C. glucose
D. chitin
Answer:
glucose
Explanation:
similar to glucose in many ways.
Why is cyanide so lethal
Explanation:
It prevents the cells of the body from using oxygen and when this happens the cells die. It is most harmful for the heart and the brain because they use a lot of oxygen.
Answer:
Cyanide prevents the cells of the body from using oxygen.
Explanation:
When this happens, the cells die. Cyanide is more harmful to the heart and brain than to other organs because the heart and brain use a lot of oxygen. Cyanide poisons the mitochondrial electron transport chain within cells and renders the body unable to derive energy (adenosine triphosphate-ATP) from oxygen. Specifically, it binds to the a3 portion (complex IV) of cytochrome oxidase and prevents cells from using oxygen, causing rapid death
Which of the following describes a frameshift mutation?
A)Insertion or deletion of a group of nucleotides that is a multiple of three
B)Insertion or deletion of nucleotides that results in a premature stop codon
C)Insertion or deletion of a group of nucleotides that is not a multiple of three
D)Substitution of one nucleotide for another
The correct answer is C because a frameshift mutation is a genetic mutation caused by indels of a number of nucleotides in a DNA sequence that is not divisible by three
Answer:
The statement that best describes the frameshift mutation is insertion or deletion of a group of nucleotides that is not a multiple of three (option C).
Explanation:
Frameshift mutation occurs when nucleotides are inserted or lost in a sequence of bases, altering the reading frame and the way nitrogenous bases are grouped together.
The sequence of nucleotides in DNA determines the mRNA nucleotide sequence, on which amino acid synthesis depends. This sequence is read in threes, and the gain or loss of nucleotides, not multiples of three, causes the normal reading to be altered.
A change in the reading frame can produce an amino acid that does not correspond to the structure of a protein, or the coding of a STOP codon, which interrupts the synthesis of a protein and leaves it incomplete.
Give an example of physical weathering.
Answer:
Ice wedging.
Explanation:
Ice wedging causes many rocks to break.
what would happen to the volume of air in the swim bladder if the fish didn't change the amount of air in it?
If the fish did not change the amount of air in the swim bladder, the volume of air would decrease because the pressure inside the swim bladder would increase.
Swim bladder It is an organ present in fishes that help them to adjust their buoyancy. It is a sac filled with gas that helps the fish swim by maintaining buoyancy.Fishes can adjust, i.e., increase or decrease the amount of air present in their swim bladder to regulate the volume and the pressure in them.Thus, if the fish did not change the amount of air in the swim bladder, the volume of air would decrease because the pressure inside the swim bladder would increase.
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which category of genetic changes does not lead to the formation of oncogenes? group of answer choices transpositions point mutations copy number changes meiotic recombination translocations
Copy number changes is considered as genetic changes which does not lead to the formation of oncogenes.
Copy number change- The cytogenetic level of resolution, known as copy number variation (CNV), involves both duplications and deletions of sequences that generally have lengths between 1,000 base pairs and 5 megabases.
Genetic Change- Genetic mutations, which occur as our cells divide and generate duplicates of themselves, are modifications to your DNA sequence.
Base Pairs- The DNA molecule is made up of two bases (or nucleotides) that contain nitrogen. Adenine (A), cytosine (C), guanine (G), and thymine (T) are the four bases of DNA (T). These bases come in certain pairings (A with T, and G with C).
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Earth was very different over
years ago, when the coal used today began forming.
O A) 500
OB) 250
O 350
D) 600
Which organ uses the circulatory system to communicate with cells throughout the body to control the amount of sugar they have available?
A loan used to purchase a home is usually known as what? A. a life loan B. a mortgage C. a direct loan D. a renter’s loan
Answer:
A mortgage
Explanation: a mortgage is what you pay to the bank for a home loan
Hi can someone please help me! I am a 7th grader btw
Answer:
Q1)
In the image, the bird is eating a yellow insect and the green insect is camouflaged in the leave, which leaves it unharmed.
Q2)
In several generations, you would expect more green insects. This is due to the survival of the fittest and the useful genes will be reproduced for the next generation. In this case, this is the characteristic of the green colour. However, the yellow insects will be more susceptible to predation so they are less likely to reproduce. This means in several generations, the yellow insects may be extinct and the green insects will be left in abundance.
Hope this helps :)
Which of the following joints are primarily
synovial?
O elbow joints
O joints in the spine
O shoulder joints
O joints in nerves
Answer:
C. shoulder joint
Explanation:
Researchers studied the relationship between glucose concentration oxygen mobile and ATP production in one type of mammalian cell. Cells were isolated and cultured and growth medium containing either 1.5MM glucose or 25 MM glucose and at oxygen levels that varied from 0% to 21%. The researchers determined the concentration of ATP per cell under the different conditions. The ATP concentrations are shown as relative to maximum ATP concentration obtained when cells were cultured in the presence of 25MM glucose and 21% oxygen standard culture conditions.
Describe the relationship between the concentration Agricole Cindy Coach medion md ATP concentration in cells.
Answer:
Direct relationship.
Explanation:
There is direct relationship between the concentration of oxygen and ATP concentration in cells because with the increase of oxygen, increase also occur in the concentration of the energy that is produced in the form of ATP. Direct relationship means if one increase the other automatically increase while on the other hand, if one decrease the other also decreases. So if oxygen is increases, ATP production is also increases and vice versa.
Explain how the respiratory system and the skin play a role in in the excretory system. how does this information support the statement that the body is a group of interacting systems and subsystems?
Answer:
One of the 10 human body systems that each organ is a part of. These bodily systems are linked and rely on each other in order to work. The brain and neurological system must interact with the heart in order for it to beat. Furthermore,the nutrients that our digestive system provides to our skeletal system help it create strong and healthy bones. The body's cells receive water, oxygen, salt, plus nutrients from the circulatory system. The epidermis, respiratory, and excretory systems all function to remove wastes from the cells. With the help of sweat glands, the skin functions as just another excretory organ to remove waste from the body. Through sweat, it removes water, salts, plus urea out from body.
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Achalasia is a disorder that prevents food from traveling to the stomach. It occurs when the lower part of the
esophagus, the tube leading from the throat to the stomach, does not open up to allow food to enter the stomach.
Which body systems are not functioning properly, causing the symptoms of this disorder?
Answer:
digestive system
Explanation:
The lower esophageal spinsters do not function when person is affected frm Achalasia resulting esophagus closure and food cannot get in instead comes backwards.
you are pushing a box to the right with a force of 15n. The friction from the floor opposes the movement with a force of 5n. What is the net force
Answer:
10n
Explanation:
15n-5n=10n
Since the floor opposes the movement you would subtract the amount of friction(5n) from the total force that it was being pushed by (15n), thus you would get 10n.
Do polar bears eat penguins?
Answer:
No
Explanation:
Polar Bears do not eat penguins because polar bears live in the arctic region (north pole) while penguins live in Antartica and in the southern hemisphere. As both polar bears and penguins live poles apart so there is no chance for the polar bears to eat penguins.
among deaf people, neurons in the temporal lobe that might normally process auditory stimuli take on new functions. this best illustrates: please choose the correct answer from the following choices, and then select the submit answer button. answer choices plasticity. phrenology. lateralization. pliability.
The temporal lobe neurons show Plasticity.
What is Nervous System?According to biology's classical idea of the nervous system, an animal's nervous system is a highly sophisticated component that coordinates its movements and sensory data by sending and receiving signals from and to various regions of the body. In order to react to such occurrences, the nervous system and endocrine system collaborate to detect environmental changes that have an effect on the body.
Around 550–600 million years ago, worm-like invertebrates were the first to develop nervous tissue. The discovery of electrical impulses in plants and their utilization in recent decades, however, has called into question this conventional wisdom. These findings have led some researchers to suggest that plants have neural systems and that the science of plant neuroscience should be established.
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Glucose is a large molecule that needs help entering a cell. Which is the most likelypathway glucose will take to enter the cell?.
By Na+-independent carrier mediated process
Which of the following is an internal stimulus?
a When an animal notices a change in seasons.
b When an animal sees a potential mate.
c When an animal is in pain.
d When an animal sees a predator.
Answer:
I believe the answer would be c
Answer:
Internal stimuli are changes to conditions inside the body, such as dangerous food in the stomach, viruses in the body, or lack of food or water.
Explanation:
hope this help
pick me as the brainliest
Which statement about matter is NOT TRUE?
a. Atoms make up matter.
b.
Matter exists only when you can see it.
Living things are matter.
c.
d. Matter is made up of atoms.
Answer:
B. "Matter exists only when you can see it."
Explanation:
Since an atom is the smallest unit of matter, both "atoms make up matter" and "matter is made up of atoms" are true.
Living things like lions or plants are made up of atoms, which is the smallest unit of matter.
This means that by the process of elimination, B. is correct.
Matter exists regardless if you can see it or not. Humans cannot see air, but it is still made up of oxygen atoms (which are matter).
SOMEONE PLEASE HELP ME PLEASEEEEEEEEEE!!!!!!!!!
Answer:
Chloroplast should be right
Answer:
b
Explanation:
im 80% sure about my answer
What type of nerves in the nervous system carry signals to the brain to tell it about what is going on in the outside world?
Motor neurons
Sensory neurons
Answer:
sensory neurons
Explanation:
Sensory nerves - The second type of nerves are called sensory nerves. These nerves carry signals to the brain to tell it about what is going on in the outside world. They come from our skin (touch), eyes (sight), tongue (taste), nose (smell), and ears (hear).
What is the answer for this question?
A keystone species is a species that has an unusually __________ effect on its ecosystem.
*
large
small
Answer:
A keystone species is a species that has an unusually large effect on its ecosystem.
Explanation:
hope this help
Answer:
large
Explanation:
it's a keystone species because it's unusually important in its ecosystem, it plays a big part.
the word keystone is used because it has to do with something being dependent on it
Which statement accurately explains the process of gene expression? A DNA is transcribed into RNA, which is translated into protein. B Protein is translated into RNA, which is transcribed into DNA. C RNA is transcribed into protein, which is translated into DNA. D RNA is translated into DNA, which is transcribed into protein.
Answer:
A. DNA is transcribed into RNA, which is translated into protein
Explanation:
The process that accurately explains the process of gene expression is: DNA is transcribed into RNA, which is translated into protein. The correct option is A.
What is gene expression?Gene expression is the procedure by which genetic information is utilized in the biosynthetic pathways of a functional gene product.
This aids in allowing it to produce end products such as protein or non-coding RNA as well as, as a result, affect a phenotype.
Several factors affect gene expression, along with molecules inside the cell, mutations that cause dominant negative effects.
It also cause haploinsufficiency, signaling molecules from neighboring cells and the surrounding environment, and epistasis. Several molecules within the cell influence gene expression.
The following process accurately describes gene expression: DNA is transcribed into RNA, which is then translated into protein.
Thus, the correct option is A.
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high efficiency transformation of intact yeast cells using single stranded nucleic acids as a carrier
The efficiency of genetic transformation of intact Saccharomyces cerevisiae cells rose to more than 1 105 transformants per microgram of vector DNA and to 1.5% transformants per viable cell utilising a method that produces competent cells using LiAc.
What is nucleic acids ?Biopolymers and macromolecules called nucleic acids are necessary for all known forms of life. They are constructed of monomers called nucleotides, which are composed of a nitrogenous base, a phosphate group, and a 5-carbon sugar. Deoxyribonucleic acid and ribonucleic acid are the two primary types of nucleic acids.
Gene expression, cellular activity regulation, genetic information storage and transfer are the three primary uses of nucleic acids.Learn more about Nucleic acid here:
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3. Will a rubber band or string hold more weight without breaking?
IV:
DV:
Hypothesis:
A rubber band will hold more weight without breaking.
The breaking strength of a material is given by a quantity known as Young’s Modulus. The Young’s modulus(Y) has a different value for different materials and its formula is as follows: Y = F(L)/A(ΔL). Here F is the maximum amount of force that the material can handle without breaking. L is the length of the material, A is the area of cross section of the material, ΔL is the change in length.
As we can see from the above formula, the maximum force handled by a material is directly proportional to the Young’s Modulus of the material. So, a material with a greater value of Y will hold more weight without breaking. As the value of Young’s Modulus is greater for rubber than a string, the rubber band can hold more weight without breaking.
Thus, a rubber band will hold more weight without breaking.
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Halite has a mass of 33.0 g and a displaced volume of 17 ml. What is the density of halite?
Answer:
1.94 g/mL
Explanation:
Following Archimedes' principle, the displaced volume of an object (meaning the volume of water it displaces if completely submerged in it) is equal to the object's volume.
Thus the volume of this Halite sample is 17 mL.
The density of an object is equal to the mass divided by the volume:
density = mass / volumeWe input the data we know:
Density = 33.0 g / 17 mLAnd calculate the density:
Density = 1.94 g/mLGive one (1) example of an energy transformation.
Answer:
An energy transformation is the change of energy from one form to another. Energy transformations occur everywhere every second of the day. There are many different forms of energy such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical. Because the law of conservation of energy states that energy is always conserved in the universe and simply changes from one form to another, many energy transformations are taking place constantly.
Hope helps you
Explanation:
Which of the following is an accurate description of science?
A.Hypotheses may or may not be testable.
B.Explanations are based on observations, evidence and testing.
C.Scientific knowledge does not need peer review and verification before acceptance.
D.Understandings will never change with additional data and testing.
Answer:B I think
Explanation: