Answer:
Explanation: Electrophoresis displays the entire DNA sequence, whereas fingerprinting allows you to quickly identify someone. But they have one thing in common: they are both so distinctive that it is nearly impossible for two persons to have the same fingerprint/DNA sequence.
HELP PLZ ASAP true or false
1 then an organism is asymetrical it means that no matter where you slice it in half the two sides are always mirror imiges true or false?
2 The phylum cnidaria is charicterized by organisms that shoot barb cells contains a potint toxin true or false?
Answer:
1 false
2 true
Explanation:
what is the transfer of genes from one population to another called ?
Answer:
Gene flow
Explanation:
Answer:
Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual organisms that reproduce in their new populations, or to the movement of gametes (e.g., as a consequence of pollen transfer among plants).
which element must your food contain so that your body can make new nucleic acids?
Answer:
A or C i put my bets on A
Explanation:
Answer:
D
Explanation:
D
Some jellyfish are transparent, how will this affect their ability to survive?
So predators cannot see it as well
Explanation:
It will affect their ability to survive because...since Jellyfish bodies are transparent, that means they are less visible to predators or threats. Which will affect their way to survive because since they are less visible to predators, it gives them a better chance for survival since their predators can't see them very well. It also gives them a better chance for survival because hunters won't be able to see them well enough to catch them because they blend in with the water, which is called transparent.
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Select the correct answer.
The image shows EKGs of a person with normal heart waves and of a person having tachycardia. Based on this image, what kind of condition
is tachycardia?
The correct answer based on the question made in the picture is A. the heart beats abnormlly fast.
What kind of condition is tachycardia?Tachycardia is a heart condition in which the heart rate increases over 100 beats per minute. This occurs when cardiac impulses do not work properly and this in the long term can cause severe problems.
There are several types of tachycardia, It is not always a problem, sometimes It can be in response to exercise or stress.
In the types of tachycardia we can find: atrial fibrillation, ventricular tachycardia, atrial flutter, supraventricular tachycardia, ventricular fibrillation.
Therefore, we can confirm that the correct answer based on the question made in the picture is A. the heart beats abnormlly fast.
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What role do decomposers play in the movement of matter
through an ecosystem?
Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers
When were the first pictures of the Milky Way taken?
Answer:
The first pictures of the Milky Way were taken on May 20, 1990.
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what does the axon of a postganglionic neuron synapse with?
The autonomic nervous system (ANS), fibers from the central nervous system to the ganglion are known as preganglionic fibers. The axon of a postganglionic neuron synapse with synapses with the effector organ.
Preganglionic neuron is known too be the first neuron in the two-neuron chain found in the brain or spinal cord. Its axon is known to have synapses with the postganglionic neuron.Postganglionic neuron is also known as the second neuron that is found in the automatic ganglion. Its axon synapses is connected to the effector organ.
Preganglionic axons synapse that is found in the sympathetic chain ganglia with a postganglionic neuron.
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What is the difference between a nocturnal and a diurnal animal?
Answer:
They make animals survive hence developing different mechanisms in order for them to survive at a different biological clock. The main difference between nocturnal and diurnal animals is that nocturnal animals are the animals that are most active during the night time while diurnal animals are animals that are most active during the daytime.
Explanation:
five impacts of human activity in natural resources
What are the two types of limiting factors and how do they differ?
Answer:
Limiting factors fall into two broad categories: density-dependent factors and density-independent factors. ... Other density-independent factors include hurricanes, pollutants, and seasonal climate extremes. Density-dependent limiting factors tend to be biotic—having to do with living organisms.
Explanation:
answer up there. answer up there. answer up there. answer up thereThe two types of limiting factors are density-dependent factors and density-independent factors. These differ in their influence by the size of a population.
What are limiting factors?
A limiting factor is a variable of a system which causes a noticeable change in the output or another measure of a type of system. These are present in a limited amount.
Limiting factors are of two types: Density-dependent factors and density-independent factors. Density-dependent factors have varying impacts according to the size of the population. Density-dependent factors include food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size. Density-independent factors include temperature, altitude, amount of sunlight, etc.
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A de-shelled egg is placed in tap water. The egg grows in size.
What is the best explanation for this change in size?
Water moved into the cell by osmosis because the solute concentration was higher inside the cell than outside the cell.
Water moved out of the cell by osmosis because the solute concentration was higher outside the cell than inside the cell.
Ions in the water moved into the cell through diffusion because there were more ions outside the cell than inside the cell.
Water moved into the cell by diffusion because there is more water inside the cell than outside the cell.
Answer:
Water moved into the cell by diffusion because there is more water inside the cell than outside the cell.
Explanation:
The de-shelled egg when placed in water swells because the concentration of water molecules outside the egg is much higher than the concentration of water molecules inside the egg, as a result of which endosmosis takes place and water from the beaker enters into the egg.
Es responsable del pensamiento y de que conocemos como sentimientos
Why is heart disease so prevalent in the United States?
Answer:
High blood pressure, cigarette smoking, and high blood cholesterol are still major contributors to the national epidemic of cardiovascular disease. High blood pressure affects approximately 1 in 3 adults in the United States,3 and only about half of them have it under control.
Explanation:
Which of the following muscles does NOT originate on the scapula?
Answer:
d. Pectoralis major
Explanation: does NOT
Which statement about chromosomes is correct?
1.A gene is made up of one allele on a single chromosome. A person’s sex cells contain that single allele.
2.A gene is made up of two alleles on the same chromosome. A person’s sex cells contain one of the alleles.
3.A gene is made up of one allele spread over two chromosomes. A person’s sex cells contain that single allele.
4.A gene is made up of two alleles on separate chromosomes. A person’s sex cells carry one allele for each gene.
Answer:
4 option is correct
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Outline the fate of food after absorption.
Answer:
The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change. Specialized cells help absorbed materials cross the intestinal lining into the bloodstream.
Put the following fossils into the correct order, from oldest to most recent, based on when evidence of their evolution first appears in the fossil record.
I. Humans
II. Trilobites
III. Winged insects
IV. Dinosaura
V. Bacteria
A. V, III, IV, II, I
B. II, V, IV, I, III
C. V, II, III, IV, I
D. I, II, V, II, IV
Answer:
the answer would be C.
Explanation:
V,II,III,IV,I
The correct option is C. V, II, III, IV, I
BacteriaTrilobitesWinged insectsDinosauraHumansWhat is fossils?Fossils exist the preserved remains of plants and animals whose bodies existed buried in sediments, such as fossil , under ancient seas, lakes, and rivers. Fossils even contain any preserved trace of life that exists typically more than 10 000 years old.
A fossil exists as any preserved stays impression or trace of any once-living thing from a past geological age. Examples contain bones, shells, exoskeletons, stone patterns of animals or microbes, objects maintained in amber, hair, petrified wood, oil, coal, and DNA remnants.
The correct option is C. V, II, III, IV, I
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explain the flow of the blood in and out of the heart.
Answer:
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
A. Val Pro Pro
B. Leu His Ser
C. Pro Val Pro
D. Val Leu Pro
Which of the following is true about respiration in plants?
Plants do not respire.
Plants respire at night.
Plants respire all the time.
Whereas animals produce carbon dioxide, plants produce oxygen at the end of
respiration.
Answer: Plants respire at night.
Explanation:
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In Plants photosynthesis can only take place in the presence of sunlight during the day, respiration happens all day long, hence option c is correct.
What is respiration in plants?Plants' respiration is visible at night and day, plants consume oxygen during respiration while also releasing carbon dioxide. Both photosynthesis and respiration take place during the day.
However, only respiration takes place at night, which uses oxygen. A sequence of chemical processes known as cellular respiration converts glucose into ATP, which may then be utilized as energy for a variety of bodily functions.
Glycolysis, citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration.
Therefore photosynthesis takes place during the day but plants respire all the time, hence option c is correct.
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Which statement explains what happens as magma rises inside a volcano?
Gases will contract in the chamber.
The pressure of the gas will disappear.
The magmatic pressure decreases.
Magma moves to other chambers.
Answer: the answer is C which is “the magmatic pressure decreases“
The magma rises and collects in chambers within the crust and as magma fills the chamber, pressure grows. If the pressure gets high enough the magma can break through the crust and spew out in a volcanic eruption., but If the pressure is low, do not break the crust. Thus the correct option is C.
What is molten magma?Magma is a molten and semi-molten rock mixture present under the surface of the Earth.
This mixture is usually made up of four parts such as a hot liquid base, called the melt, minerals crystallized by the melt, solid rocks incorporated into the melt from the surrounding confines, and dissolved gases.
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A 100% efficient light bulb is the one that converts all the electricity to light without producing any heat. which of that following methods is the most economical way of increasing the light output from a lamp ?
a) Replace the light with a new one
b) Clean the light surface
c) Switch of the bulb
d) None of the above
Answer:
d
Explanation:
Buying a new light bulb will cost money so it is economically inefficient. Cleaning the light surface doesn't increase the light output from the lamp and switching off the bulb means no light at all, therfore the answer is none of the above.
Helpppp
A community needs more electrical energy. The community is located in an area with the following characteristics : Average wind speed of 15 to 20 mph . One small river with slow currents Rainy conditions most of the year No coal or oil deposits Based on this information, which alternative energy source should the community consider investing in?
A Biopower
B hydropower
C Solar energy
D Wind energy
I’ll make you Brianlist if you give me the correct answer.
Pieces of Earth's crust move on top of the: Group of answer choices outer core ocean inner core mantle
Answer:
mantle
Explanation:
Which biomolecule has a carbon-nitrogen bond?
The answers are
Starch
Glucose
Protein
Answer:
protein
Explanation:
it is called a peptide bond
building units of DNA
HELP HEAVS
How is soil polluted?Explain.
Answer:
Main Causes of Soil Pollution
1. Industrial Activity. Industrial activity has been the biggest contributor to the problem in the last century, especially since the amount of mining and manufacturing has increased.
2. Agricultural Activities. The utilization of chemicals has gone up tremendously since technology provided us with modern pesticides and fertilizers.
3. Waste Disposal.
Explanation:
got the information from the internet
The leaves of a plant are dotted with openings known as stomata when open stomach allow the plant to exchange to games and allow moisture to evaporate helping to draw water from the roots up into the plant these activities help the plant to
Which of the following is NOT a risk factor for multiple sclerosis?
Answer:
c is correct
Explanation:
