Why does a pollutant end up multiplied as it travels up the food chain from producers to consumers?
Answer:
This is due to bio magnification.
Explanation:
When there is a gradual increase in concentration toxins(pesticides) in the tissues of organisms progressively in the food chain,the term for describing this is called -bio magnification.
The progressive multiplication in the concentration of these toxins may be due to non-biodegradable nature of the toxins,which are absorbed into the tissues of mostly the producers from the environment faster than they could metabolized by the body.
.Therefore these could not be removed by the producers, during excretion and respiration,and hence build up progressively upwards in the consumers.
A typical example is the phytoplankton which absorb toxins from sea water and accumulate this in the body.The build could not be ,metabolize by the body system,and is transferred to the zooplankton along the food chains when they feed on the phytoplanktons- this is Bio magnification.Which is NOT true about ALL stars?
All stars are mostly composed of hydrogen
O All stars spend some of their lives as main sequence stars
All stars produce white dwarfs
All stars become giants when they run out of hydrogen
Answer:
All starts become giants when they run out of hydrogen. this information is false.
What stores energy for long term use and is a structural component of cell membranes
Unlike any animal, people have developed_____
to increase their ability to observe and gather information.
1. Equipment
2.tools
3.instruments
4.senses
Answer:
senses?
Explanation:
unlike any animal, people have developed senses
the rest of the options would not make much sense given the sentence
Where would Igneous rocks that have crystals that are small, like "salt and pepper" have
cooled?
Members of the same species living together
What is the main cause of urban migration in the United States?
a. Rural communities are no longer necessary.
b. Urban dwelling provides better access to goods, services, and jobs.
c. Urban communities reduce human impact on the environment.
d. Rural communities are unable to support life in the long-term. .
Answer:
B
Explanation:
Urban dwelling provides better access to goods, services, and jobs.
Urban dwelling provides better access to goods, services, and jobs is the main cause of urban migration in the United States
What is migration ?Migration can be defined as the movement of a large number of organisms from one place to another place, there are many reasons for migration.
The term migration is used to define regular and periodic movements of the population away from or back to their place of origin, it can be up different types.
Some migration can occur for an entire lifetime and it happens to be a single migration of an individual. This is in the case for the Pacific salmon. On another hand, an individual may migrate frequently, like many of the migratory birds and other mammals.
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ANSWER ASAPP
Explain molecules
Answer:
Molecules are parts of stuff all over in the air
Explanation:
Which of the following is the most likely outcome of Leigh syndrome on affected mitochondria?
Answer:
The loss of this protein reduces the formation of normal COX complexes, which impairs mitochondrial energy production. The most common mtDNA mutation in Leigh syndrome affects the MT-ATP6 gene, which provides instructions for making a piece of complex V, also known as the ATP synthase protein complex.
Is bacteria the smallest living thing on earth
Answer:
Image result for Is bacteria the smallest living thing on earth
Mycoplasma genitalium, a parasitic bacterium which lives in the primate bladder, waste disposal organs, genital, and respiratory tracts, is thought to be the smallest known organism capable of independent growth and reproduction.
Explanation: hope this helped
Match the words in the left column to the appropriate blanks in the sentences on the right.
protein-energy malnutrition
buffers
hormones
marasmus
kwashiorkor
transport proteins
kidney stones
antibodies
coenzymes
1. Proteins called....................... aid the immune system in its fight against bacteria, viruses, and other foreign substance by binding to them and helping to inactivate or destroy them.
2. ...........................direct activity in the body and can be made of proteins or lipids.
3. A high-protein diet can increase the risk of.................. .
4. .........................carry many substances through the blood or allow movement of substances in and out of cells.
5. Inadequate intake of protein and/or calories is known as................ .
6. Most enzymes are proteins, but some may utilize........................ in the form of vitamins to help with reactions.
7. Proteins help control the acid-base balance in the body by acting as............................ .
8. ....................................is a severe deficiency of dietary protein, resulting in swelling in the feet, legs, and stomach among other symptoms.
Answer:
1. antibodies
2. hormones
3. kidney stones
4. transport proteins
5. protein-energy malnutrition
6. coenzymes
7. buffer
8. kwashiorkor
Explanation:
1. ANTIBODIES are proteins that aid the immune system in its fight against bacteria, viruses, and other foreign substance by binding to them and helping to inactivate or destroy them.
2. HORMONES are substances made of protein or lipid released into the bloodstream in order to direct physiological activity in the body.
3. A high-protein diet can increase the risk of KIDNEY STONES because the body will have an increased acid level.
4. TRANSPORT PROTEINS carry many substances through the blood or allow movement of substances in and out of cells.
5. PROTEIN-ENERGY MALNUTRITION is the phenomenon used to describe an inadequate intake of proteins and/or calorie content.
6. COENZYMES are molecules that play vital roles in the function of an enzyme. Coenzyme in form of vitamins are utilized by enzymes to catalyze chemical reactions.
7. Proteins can act like BUFFER (a substance with a stable pH) in order to regulate the acid-base balance in the body.
8. KWASHIORKOR is a malnutrition deficiency that result from the insufficiency of dietary protein, resulting in swelling in the feet, legs, and stomach among other symptoms.
1. What is one way that humans may have a negative impact on environmental change? 2. What is one way humans may have a positive impact on environmental change?
Answer:a negative impact is global warming due to the over use of fossil fuels. a positive impact is the way we control the food chains and keep overpopulation from other species from happening.
Explanation: look above
How do you make mind maps?
what do you observe at low temperature medium temperature and high temperature
The temperature of a body can be related to the energy transferred between the particles of the body. Hence, temperature is directly proportional to the energy of the particles in the sample.
The kinetic energy possessed by the particles in a sample is highest at the highest temperature attained by the body. The kinetic energy drops as the temperature drop s from high to medium to low temperature. Hence, the low temperature samples have very low kinetic energy.Therefore, the energy possessed by the particles of a sample is directly proportional to the temperature of the sample.
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What conditions were necessary for the first matter to form in the Universe?
Explain why
Answer:
hydrogen and helium couldn't form until the universe had cooled enough to allow their nuclei to capture electrons, about 380,000 years after the Big Bang. Within about 3 minutes after the Big Bang, conditions cooled enough for these protons and neutrons to form hydrogen nuclei.
Explanation:
Early scientists believed the earth was around 6,000 years old. What do scientists
currently believe?
Answer:
they now also believe that earth is 6000 years old
Explanation:
Science is open to change.
O True
O False
False not unless it has went under many experiment to be proven else how
This is true in most cases. More is found about a topic, then what is known can change depending on what information can be found.
All materials,weather solid,liquid or gas are made of?
They are all made of atoms!
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If an object is having a constant positive acceleration, what can we assume about the forces on it?
Answer:
If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. ... If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant.
The force on the object is unbalanced.
Acceleration is the change in velocity per change in time of motion.
At constant velocity, the acceleration of an object will be zero.Increase in the change of velocity causes increase in acceleration in positive direction.A positive acceleration indicates increase in the motion of an object.According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.
F = ma
If the net force on an object is balanced, the acceleration of the object will be zero because the object will move at velocityHowever, if the force on an object is unbalanced, the object will accelerate.
Thus, we can conclude that the force on the object is unbalanced.
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9. AAC is a codon that codes for the amino acid:
serine
lysine
asparagine
isoleucine
Answer:
asparagine
Explanation:
take a look at the graph attached, it helps identify codon sequences.
The codon AAC codes for the amino acid asparagine. Asparagine is a non-polar, neutral amino acid that is found in all living cells. Hence option C is correct.
It is involved in a variety of cellular processes, including protein synthesis, cell signaling, and energy metabolism.
The other answer choices are incorrect. Serine is coded for by the codon AGU or AGC. Lysine is coded for by the codons AAA or AAG. Isoleucine is coded for by the codons AUA, AUC, or AUU.
Therefore, option C) asparagine is correct.
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As a scuba diver descends toward the bottom of the ocean, she experiences the sensation of her ears "popping." Based on your observations from the Can Crush Lab, why would this happen?
A. Decreased pressure inside the diver's oxygen tank causes pressure on the diver's ears.
B. Increased pressure inside the diver's oxygen tank causes pressure on the diver's ears.
C. Pressure increases on the diver as the diver descends deeper underwater.
D. Pressure decreases on the diver as the diver descends deeper underwater.
Answer:
C. Pressure increases on the diver as the diver descends deeper in the water.
Explanation:
Due to the pressure of the water on the diver she feels the pressure on her ears. Just like the same feel of going up a steep hill.
Answer:
C. Pressure increases on the diver as the diver descends deeper in the water.
Explanation:
The LESS genetically diverse a population is, the better it can respond to environmental stressors. True or False?
False is the answer as it increases the risk of extinction
What color is blood while it’s in your body ?
Answer:
Red, shade of red may depend on the oxygen level in it.
Explanation:
Answer: Dark red for veins, bright red in artery
Explanation:
Chemical Structure of cellulose diagram
what is one major difference between prokaryotes and eukaryotes
Answer:
There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead. From prokaryotic cells to eukaryotic cells
Explanation:
hope it help
Answer:
eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead
Explanation:
How are meiosis and mitosis different?
A. Cells go through telophase In mitosis, but In meiosis they don’t.
B. Chromatids from only during the process of meiosis.
C. Mitosis produces haploid cells, while meiosis produces diploid cells.
D. Only meiosis results In a reduction In chromosome number.
Answer: D. Only meiosis results In a reduction In chromosome number.
Explanation:
I got it correct on the test
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What three parts make up the modern cell theory?
Choose 3 answers:
(Choice A)
A
Cells can only come from other cells.
(Choice B)
B
Cells arise spontaneously.
(Choice C)
C
The cell is the building block of all living things.
(Choice D)
D
All organisms are made of one or more cells.
Answer:
A , C and D
I think sooooo
Answer:
cells arise spontaneously
the cell is the building block of all living things
all organisms are made of one or more cells
Which of the following is a main difference between prokaryotic and eukaryotic cells?
A.eukaryotes are smaller than prokaryotes
B.eukaryotes do not have organelles
C.prokaryotic cells lack a membrane-bound nucleus
D.prokaryotes do not have ribosomes
Answer:
C
prokaryotic cell's DNA just floats around in a cluster
why is carbon dioxide carry in dissolved form in the blood that oxygen
carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood. because carbon dioxide have more solubility than oxygen
A personal trainer thinks her clients get better workouts and are stronger if they listen to music while working out. Over the next week, she divides her 20 clients into two groups of 10. For the first group, she plays music and sees if they can lift a barbell weighing 50 lbs. For the second group, she repeats the test but does not play any music. All 10 members of the music group could lift the barbell, but only 7 members of the no music group could lift the barbell. She concludes that her hypothesis was correct and decides to always play music for her clients.
Which group was the control group?
Answer:
The correct answer is: the group of 10 people that lifted the barbell with music is the control group.
Explanation:
The personal trainer made an experiment to test her hypothesis. When experiments are being made, is common to have a control group and an experimental group.
The control group is the one that is subjected to the usual conditions, the group that shows what normally happens. The experimental group is the opposite, this group is observed while it goes through an unusual condition that may impact how they perform in the task observed.
The personal trainer thinks that playing music for her clients is of benefit to them, so we can assume that she always plays music during the workouts, which means that the control group is the one that is listening to music while lifting a barbell. The group that worked out without music is the experimental group because they were the ones that performed that activity with a change in their normal environment.