Answer:
Sewage, oil, pesticides and fertilizers affect water quality.
Explanation:
There are three types of pollution i. e. air pollution, soil pollution and water pollution. Smoke and smog are present in the air is the example of air pollution, waste product, using of pesticide and industrial dumping are the example of soil pollution and chemicals in water due to runoff of fertilizer, sewage and oil are the main agents of water pollution. These three types of pollution adversely affected the water quality. Water quality will be affected when the fertilizer or pesticides runoff from land to water bodies. Sewage and oil also lowers the quality of water.
A teacher collected some
beetles from a rotting log
and placed them in a
container of dry oatmeal in
her classroom. She kept the
box covered with a light cloth
so that the beetles could not
escape. She also asked one
of her students to add
potato and apple pieces
once a week to provide food
and moisture for the beetles.
After several weeks, the
student reported that there
were some strange-looking,
wormlike organisms in the
container
Answer:
beetle larva
Explanation:
A school aged child is brought to the clinic by her parents. The parents state that the child will be engaged in some activity at home and then just stop suddenly for a few seconds and then pick up the activity again as if there had been no break in what she was doing. This child should be assessed for what neurological disorder?
a.) Tonic-clonic seizures
b.) Absence seizures
c.) Myoclonic seizures
d.) Status epilepticus
Answer:
Absence seizures
Explanation:
This is a type of seizure also known as ( Petit Mal seizures).It is common in children, (between 4-14 years) and characterised with intent stare at empty space for few seconds(which may occur in 10 -100 times in a day) and does not caused any significant harm.However,with frequent occurrence it may affect concentration.It does not exceed 15 seconds
it is caused by repeated electrical signals in the brain due to interference in the synaptic transmission and also to alterations in levels of Neurotransmitters .
Staring into empty space,
Fluttering of eyelids
Intermittent stoppage of speech are some of the symptoms.
Treatment is with medications.,
In 1998, scientists discovered that the expansion of the universe has been accelerating.
What force is causing this phenomena?
dark energy
Hubble's law
the Doppler effect
background radiation
Answer:
Option A (dark energy) is the right answer.
Explanation:
A hypothetical supplier of power that creates a force that contradicts gravity, which is assumed to have been the catalyst of accelerated universe development. Hypothetically, dark energy counteracts the kinetic energy including its beginning of the globe, meaning that perhaps the multiverse does not have intrinsic curvature, although observational measurements presently indicate.Some other three choices have no relation to the particular situation. Thus option A would be the right solution.
Answer:
A
Explanation:
using scientific terms, describe the feeding relationships between thr organisms in the following food chain.
grass > grasshopper > field mouse > owl
5000kJ of energy is available in the grass.
Answer:
Grass, meat / flesh
Which motion describes molecules in a solid at extremely low
temperatures? *
Moving freely and randomly in a space
Vibrating while closely packed together
Sliding around one another and colliding
Bumping together with some room to move
Answer:
vibrating while closely packed together
Explanation:
Your question has been heard loud and clear.
Vibrating while closely packed together is the right answer
"A type of laser medium that produces a visible blue-green wavelength beam that is absorbed by red-brown pigmented tissue, such as the red hemoglobin in blood, and by the cells that lie under the retina, is a(n)"
Answer: ARGON LASER
Explanation: An Argon laser is a type of unique laser system that was invented in 1964,it is unique because it uses a noble gas (ARGON) as it's active medium. Argon laser functions by emitting a colored light of blue/green,this light is being absorbed by haemoglobin present in blood cells,the heat produced gives room/allows the laser to close up cells of blood that are ruptured.
how does root pressure move water
Answer:
Root pressure is caused by the accumulation of water in the xylem pushing on the rigid cells
How is genetic information preserved during the copying of DNA? View Available Hint(s) Hint 1.opened hint How is genetic information preserved during the copying of DNA? The information is preserved because DNA codes for RNA, which codes for protein. Genetic information is preserved in the linear sequence of the building blocks A, T, G, and C. Genetic information is preserved by base pairing between A and T and between G and C across the two strands of the double helix. The information in DNA is copied into RNA, which is used as a template to copy back to DNA.
Answer:
Genetic information is preserved in the linear sequence of the building blocks A, T, G, and C.
Explanation:
Deoxyribonucleic acid contains genetic information in the bases i.e the Nitrogenous bases Adenine, thymine, Guanine, cytosine are the store for coding genetic information, in them lies the genetic information of an organism. Each base is coding for different gene the is found in the organism.
After the information on the DNA have been moved to an intermediary Ribonucleic acid (RNA) it is been translated into an amino acid a building block of protein containing all the genetic information coded for by the Nitrogenous base.
Which is the FALSE statement about this blood pressure measurement? 147/92 A. 92 is the diastolic number. B. 147 is the systolic number. C. This is a high blood pressure measurement. D. This is a normal blood pressure measurement.
Answer:
The false statement is - option D.
Explanation:
The lower value is known as diastolic number which is the pressure in the arteries when the heart takes rest in between two consecutive heart beats. Diastolic value shows the pressure of arteries when heart fills with blood.
The upper value or number is known as the systolic number, it is the pressure value of arteries of an individual during the contraction of hear. The normal blood person of a health person is range from 80/60mmhg to 120/90 mmhg, above this range is considered as high blood pressure.
Thus, the false statement is - option D.
all members of the plant kingdom contains chlorophyll? true or false
Answer:
this is true
Explanation:
if it isnt in the leaves of a plant, then its in the stem, or maybe, the entire thing is green!
flowers have green stems, trees have green leaves, lily pads are green, etc.
hope this helped
Answer:
True
Explanation:
All plants contain chloryphyll
Why is it necessary to separate oxgynated blood and deoxgynated blood in living organisums?
Answer:
For efficient transportation of blood.
Explanation:
A testcross involves an individual exhibiting the dominant phenotype but an unknown genotype being crossed with an individual that has a(n) ___________ genotype.
Answer and Explanation:
You will find the complete answer and explanation in the attached file due to technical problems.
Which kind of cells do plants and animals have?
Answer:
Animals and plants are made of cells. Tissues are made from cells of a similar type. Organs are made from tissues, and systems are made from several organs working together.
Explanation:
Answer:
Eukaryotic
Explanation:
They have membrane-bound organelles such as the nucleus and mitochondria.
F. Choose the odd one out from the given term and name the category to which
the others belong.
1. Haemophilia.Colour blindness, thalassaemia, night blindness
2. Gene. Chromosome. Allele, Ovule
3. Diffusion. Imbibition. Osmosis, Oxidation
4. Seed shape. Seed colour. Flower position. Inflorescence
Answer:
1. night blindness
2. Ovule
3. Oxidation
4. Inflorescence
Explanation:
1. Night blindness is odd among haemophilia, colour blindness, thalassaemia because night blindness is not an inheriditary disorder while other three are inheriditary diorder.
2. Ovule is odd among gene, chromosome, allele, ovule because ovule develops into a seed when fertilized and is not a part of genetic material DNA while the other three are part of genetic material.
3. Oxidation is odd among diffusion, imbibition, and osmosis because other belongs to the method of conduction of water and minerals by plants.
4. Inflorescence is odd among seed shape, seed colour and flower position because inflorescence is a group pf flower is flower axis while other belongs to a characteristic of a single or individual flower.
Hence, the correct answer is:
1. night blindness
2. Ovule
3. Oxidation
4. Inflorescence
Hey I know it's a lot who ever answer all I'm going to give brainliest answer thxs 1) DNA is a microscopic molecule made up of only _____ chemicals. 2) In the __________ all that was known about life was what could be seen through a _________________________. 3) Chromosomes are made of _______________ and ______________. 4) The ingredients that make DNA are known by the letters _____________________. 5) The first pictures of DNA were taken using _______________ crystallography. 6) To determine the structure of DNA, Watson & Crick chose to build _______________. 7) Watson & Crick announced they had a DNA model on _____________________. 8) After seeing the model, Rosalind Franklin said that it was _____________________. 9) Chargaff’s rule stated that the amount of _____ and the amount of _____ were equal and the amount of _____ and the amount of _____ were equal. 10) The X-pattern of DNA was the result of a shape known as a _________________________. 11) In a molecule of DNA there could be hundreds of millions of _____________________. 12) The letter ____ always combines with ____ and the letter ____ always combines with ____. 13) Watson & Crick produced their final model on _________________________. 14) Rosalind Franklin never received a Nobel prize because she _______________. 15) For DNA to be replicated it must first be _____________________. 16) The single strand of DNA is then ________________ and formed into a ________________.
Answer:
1) nitrogen bases
2) the 1950’s; microscope
3) DNA and protein
4) nucleotides
5) X-ray diffraction
6) ball-and-stick model-building
7) 25 April 1953
8) was critical to Watson and Crick
9) adenine-timine; guanine-citosine
10) double helix
11) base pairs
12) G with C and A with T
13) 1953
14) died
15) unwound
16) synthesized; a new molecule
Explanation:
Nitrogenous bases are used to construct nucleotides. Until the discovery of the helical shape of the DNA molecule, were only possible to identify the genetic material (chromosomes) by the microscope. Chromosomes are composed of DNA and proteins (histones). Nucleotides are the building blocks of the DNA molecule. The X-ray diffraction data obtained by Rosalind Franklin were used to decipher the DNA structure. The ball-and-stick is a molecular model where atoms are represented by spheres and bonds are represented by rods. Chargaff's rules indicate that the content of cytosine is equal to guanine and adenine is equal to thymine. Rosalind Franklin died of ovarian cancer in 1958. The double-stranded DNA molecule must be unwound and then the DNA strands serve as templates to synthesize identical DNA molecules.
ang Chlorophy
1. Which cell types remain in a non dividing stars and do not comes the trials
process?
-cles of Cells
A muscle cells and nerve cells
B skin cells and muscle cells
cles of Cells
C muscle cells and skin cells
D liver cells and nerve cells
Answer:
A. Muscle and Nerve cells
Explanation:
These two kinds of cells remain in a non-dividing state. The rest of these cell types multiply/divide.
Explain how Darwin’s theory of evolution by natural selection may have led to all giraffes having long necks.
Answer:
Because this individual had a longer neck, it was able to reach food sources that other animals couldn't...
During the 1950s, a scientist named Lysenko tried to solve the food shortages in the Soviet Union by breeding wheat that could grow in Siberia. He theorized that if individual wheat plants were exposed to cold, they would develop additional cold tolerance and pass it to their offspring. Based on the ideas of artificial and natural selection, do you think this project worked as planned
Answer:
No
Explanation:
Trofim Lysenko was a Biologist in the then Soviet Union, who did not believe in the fundamental laws of science. Selective breeding is the method developed by humans to change certain characteristics of species to desired outcomes. This is based on the fact that living things have inheritable traits encoded in genes that can be passed from one generation to another.
Lysenko did not believe in this fact. He rather believed that when exposed to the right environment, plants and animals soon become adjusted to the exposure and can then develop traits that would be passed on to their offsprings. He applied this theory of his when he exposed wheat plants to cold believing that they would develop tolerance to cold. This failed woefully and resulted in severe starvation that caused the death of millions of people in the Soviet Union.
One of the needs of today's taxonomy is:
O more information
O more species
O more interpretation
Ofewer species
Answer:
The correct choice is A
Explanation:
Taxonomy is the process of coining names for and categorising plants and animals into groups based on factors or qualities which are similar and or those which distinguish them.
Taxonomy helps to give meaning to the vast diversity of fauna and flora on planet earth.
Cheers!
Answer:
The answer is A
Explanation:
You can tell because the way that it is
In glycolysis, pyruvate, ATP, and NADH are produced. The lactic acid fermentation process uses the NADH molecule from glycolysis to convert pyruvate into lactate. During lactic acid fermentation, the NADH molecule transfers electrons to the pyruvate molecule and is converted to NAD+. How do you think this transfer of electrons helps the lactic acid fermentation process repeat itself? will give brainliest
Answer:
Explanation:
Fermentation does not involve an electron transport system, and no ATP is made by the fermentation process directly. Fermenters make very little ATP—only two ATP molecules per glucose molecule during glycolysis. ... During lactic acid fermentation, pyruvate accepts electrons from NADH and is reduced to lactic acid.
The NADH needed to convert pyruvate to lactate is supplied by this reaction of glycolysis, so the transfer of electrons helps to repeat the lactic acid fermentation process as lactate is reduced to pyruvate to regenerate NAD+ which is are reused for uninterrupted operation.
What is Glycolysis?Glycolysis is defined as the metabolic pathway that converts glucose to pyruvate where the free energy released in this process is used to form the high-energy molecule adenosine triphosphate and the lesser nicotinamide adenine dinucleotide. It is a sequence of ten reactions catalyzed by enzymes.
During glycolysis , ATP and NADH are produced where lactic acid fermentation process uses NADH molecule from glycolysis molecule to convert pyruvate to lactate. During lactic acid fermentation, NADH transfers its electron to pyruvate and is oxidized to NAD+ while pyruvate is reduced to lactate.
NAD+ assisted dehydrogenation and phosphorylation of glyceraldehyde-3-phosphate (G3P) to 1,3-biphosphoglycerate (1,3-BPG) is coupled to lactate production where NADH is supplied to convert pyruvate to lactate, hence, the transfer of electrons helps the lactic acid fermentation process to repeat itself as the reduction of pyruvate to lactate regenerates NAD+ which is reused for uninterrupted operation
Thus, the NADH needed to convert pyruvate to lactate is supplied by this reaction of glycolysis, so the transfer of electrons helps to repeat the lactic acid fermentation process as lactate is reduced to pyruvate to regenerate NAD+ which is are reused for uninterrupted operation.
Learn more about Glycolysis, here:
https://brainly.com/question/15159050
#SPJ2
what is one property of viruses that makes it difficult to cure viral infection
When did coronavirus started and where wil mark brainliest
Explanation:
Wuhan chine in November
hope this helps
why do all Karens have breathing problem when it comes to wearing masks????????
Answer:
because they are karens lol
Explanation:
What happens when the positive transcription factor affinity is slightly lower than the negative transcription
factor's affinity?
(1 point)
O mRNA is made in large quantities in frequent batches.
OmRNA is made in small quantities in infrequent batches.
O mRNA is made in large quantities in infrequent batches.
O mRNA is made in small quantities in frequent batches.
Answer:
O mRNA is made in small quantities in infrequent batches.
Explanation:
mRNA is made in small quantities in infrequent batches because the affinity of positive transcription is lower and affinity of negative transcription is higher which is responsible for production of mRNA from DNA molecule. Transcription is a process in which the information that is present in DNA molecule is copied to new mRNA molecule. Positive transcription factor is a promoter which promotes the initiation of transcription in order to enable RNA polymerase while negative transcription factor is a repressor protein.
What does the formula below represent? CO2 + H20 → C6 H12 06+02
Answer:
Photosynthesis
Explanation:
Why do turtles hv paddle like flippers ?
Answer:
The answer is
Explanation:
Turtles have paddle like flippers to push back water while swimming.
Answer:
Turtles hv paddle like flippers so that they can push the water backward, move forward and swim easily
The following question has two parts. First, answer Part A. Then, answer Part B.Caused by a mutation, sickle cell anemia is a disorder that affects hemoglobin, the red blood cell molecule that carries oxygen to cells throughout the body. The β chain of the hemoglobin protein is a single chain of amino acids and is 147 amino acids long. In humans, the gene that encodes for the β chain is located on chromosome 11. The diagrams show the DNA, RNA, and amino acid sequence of an unaffected person and a person with sickle cell anemia.image f8707eaefc0147c9bd074a15bb19c344Part A:Where does the mutation that causes this disorder occur?AThe mutation occurs on the DNA.BThe mutation occurs on the RNA.CThe mutation occurs on the ribosomes.DThe mutation occurs on the amino acid.Part B:Which BEST describes the result of this mutation?AThe entire sequence of amino acids is changed.BThe RNA strand does not code for the correct amino acids.CThe change in amino acids shortens the polypeptide sequence.DThe alternation of a single nucleotide encodes for a different amino acid.
What is a scientific theory? What is a hypothesis? How are they similar? How do they differ?
Answer: Scientific theories can be backed up with evidence/data (the evidence that backs the theory isn't common knowledge to everyone yet), while a hypothesis is just an educated guess, meaning that you are making a prediction based on something already known.
They are both similar in the sense that they are questions that are answered by facts, but theories are answered with factual evidence rather than factual reasoning (hypothesis).
A cell biologist carefully measures the quantity of DNA in grasshopper cells growing in cell culture. Cells examined during the G1 phase of the cell cycle contained 200 units of DNA. What would be the amount of DNA in one of the grasshopper daughter cells right after cytokinesis?
Answer:
200 units
Explanation:
Cell cycle refers to the series of events that occurs throughout the division of a cell. Mitosis is the division used during cell growth. Mitosis consists of the Interphase stage and the Mitotic phase. The interphase stage is made up of the G1, S and G2 phases in that order. The genetic material (DNA) of the cell replicates during the Synthesis (S) phase.
Hence, this means that the DNA of grasshopper cells in the culture observed during the G1 phase will enter the S phase and replicate i.e. 200 units will form 400 units.
The cell go ahead to undergo nuclear division during the anaphase of the mitotic phase. Hence, each pole of the cell will contain 200units of DNA each. During Cytokinesis, the cytoplasm of the cell divides and the contents of the opposite poles becomes a new daughter cell. Each daughter cell will therefore contain 200 units of DNA each.
Based on your knowledge of our solar
system, how do you think it originally
formed?
Answer:
Our sun oriented framework shaped almost 4.5 billion a long time back from a thick cloud of interstellar gas and tidy. The cloud collapsed, conceivably due to the shockwave of a adjacent detonating star, called a supernova. When this tidy cloud collapsed, it shaped a sun oriented nebula—a turning, twirling disk of fabric.
