Answer:
E) Certain environments can lead to an increased risk of developing certain diseases.
Explanation:
The lesson states that specific environments can increase the chance of health problems.
Which statement about the structure of DNA is NOT true?
Long strands of DNA are twisted in the form of a double helix.
Long strands of DNA are twisted in the form of a double helix.
DNA contains four different nitrogen bases including adenine, guanine, cytosine, and uracil.
DNA contains four different nitrogen bases including adenine, guanine, cytosine, and uracil.
DNA is made of linked nucleotides which are each made of a sugar, a phosphate and a nitrogen base.
DNA is made of linked nucleotides which are each made of a sugar, a phosphate and a nitrogen base.
DNA consists of two strands joined together by complementary base pairing.
How many amino acids could be specified if codons consisted of two nucleotides instead of three? What problem would this present for an organism making proteins using all 20 amino acids? I need help with the last part i dont undertsand
Answer:
This could result in a mutation.
Explanation:
A change in the DNA can affect the work of cells because it can cause a mutation; it can be a good mutation or bad. The three main mutations that occur are Insertion, Deletion and Substitution. Insertion is when DNA base(s) are added in, Deletion is when DNA base(s) are removed. Lastly, Substitution is when DNA base(s) are switched on. All of these mutations can have effects. These effects are Silent effect, Missence, and Nonsense. Silent effect is a mutation that does not change the sequence of amino acids in a protein. Missence is a mutation that causes the sequence of amino acids to change. This can cause incorrect protein folding and protein malfunction. Nonsense is a mutation that causes an early stop codon. This effect leads to a protein that is too small. Also a Frameshift can occur. Framshift is when the reading of a frameshift is moved over by one or more bases such that every subsequent amino acid changes. An example of a frameshift is THE CAT ATE THE RAT. If you insert an A at the Beginning this happens ATH ECA TAT ETH ERA T. IN Conclusion there are two Mutations that also play a role in this Point Mutation and Chromosomal Mutaion. Point Mutation is when a single DNA base is either substituted, inserted or deleted from the sequence. Chromocomal Mutation is when large pieces of a chromosome or an entire chromosome is either substituted, inserted or deleted.
16 amino acids could be specified if codons consisted of two nucleotides instead of three.
What do you mean by Codons?Codons may be defined as an arrangement of three consecutive nucleotides in a DNA or RNA molecule that codes for a specific amino acid.
A mutation may be responsible for such problems that would present for an organism making proteins using all 20 amino acids.
A synonymous mutation means that one base within the codon gets substituted for another. Even though the same amino acid is still produced.
It changes the sequences of nucleotide bases within the codon, but ultimately the coded amino acids remain the same.
Therefore, it is well described above.
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What muscle is each number
Answer:
XD 175 + 25$ like they said would be 200. jake would still be behind $25, therfore being the wrong answer provided.
Explanation:
After cytokinesis, how many cells have been formed from the parent cell?
Answer:
During cytokinesis, a single cell divides into two daughter cells.
Explanation:
Answer: Mitosis = 2 genetically identical daughter cells,
Meiosis = 4 genetically different daughter cells
Classify the major structures of the nervous
system
Explanation:
The nervous system has two main parts:-
● The central nervous system is made up of the brain and spinal cord.
● The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Help pleaseeeee fasttt
write a different living and nonliving things found in rainforest mangrove swamp and coral reef ecosystem
living things are:-
trees plantshrubsfernsbeers deersbirds insects frogsnon living things are:-
water rain temperature soilairrocksIN CORALS REEFS:-living things are:-
fishes coralsmosssea turtlesseaweedslobsternon living things are:-
rock sunlight sandtemperature IN MANGROVE SWAMP:-living things are:-
crocodile monkeyslizardsmicrogramsnon living things are:-
sunlight temperature floodinghope it is helpful...plz mark it is brainliest.Aeroplanes can fly ,just like birds.However,they are not considered living organisms .Give 4 reasons
What do you think the primary_impacts (the first and most major effects) of the earthquake would
have been?
2 Although it was not one of the most powerful earthquakes that has ever taken place; a lot of people
died in the insident in Pakistan-administered Kashmir. What features of the area do you think might
have contributed to the high death rate?
3
Many international agencies and the British military were involved in the aid effort after the
earthquake. What kind of aid and assistance do you think the British military would have been
involved in providing?
Answer:
Hi friend
I am from india!
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does anyone know 1,4,5,8?
Answer:
1. Digestion
4. Replication
5. Interphase
8. 48
Explanation:
7. True or False. Wind erosion continually changes the landscape. *
8. Which of the following is NOT a correct description of air movement over the Earth?*
A. The sun warms the land in the air evenly
B. Air is warmers at the pools of the Earth
C. Warm air rises
D. Cold air sinks
Answer:
That's a difficult question, but I would choose either A or B.
Explanation:
Since the question is talking about MOVEMENT over the earth. C and D are talkig about how the air sinks or rises, so you can cancel those out, hope this helps a little! ❤
Newton's first law of motion states that an objects motion remains the same unless a force acts upon it. What would be an example of this law in action? *
A good example would be a ball rolling along a flat surface. Since the ball is circular it will roll for a while but will stop after some distance. The force that caused this ball to stop is called friction. There are other things like air resistence but that is still considered friction. If you don't understand anything, please don't hesitate to ask.
For Example the net force for the box of frozen burritos would be zero if the rightward force was 45 Newtons and the leftward force was 45 Newtons. If the burrito box started moving at a constant speed before the forces were applied, it would either continue to move or remain at rest. If it was already at rest before the forces were applied, it would remain at rest.
What is the first law of motion ?
The first law of motion : Unless acted upon by a net external force, an object at rest remains at rest or moves at a constant velocity when in motion.An external force is one that comes from outside an object rather than one that comes from within an object. An external force on the moon is, for instance, the gravitational pull of Earth on the moon. However, the moon's internal force is the gravitational pull that the moon's inner core exerts on its outer crust. An object's overall motion cannot be altered by its own internal forces.Inertia refers to a body's ability to remain stationary or in motion at a constant speed. The "law of inertia" is a common name for Newton's first law. Experience has taught us that some things have more inertia than others. It is evidently more challenging to alter a basketball's motion than a large boulder's is.The mass of an object is used to determine its inertia. By measuring an object's acceleration difficulty, mass can be determined. Accelerating an object becomes more difficult the more mass it possesses.To know more about first law of motion check this:
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Five general characteristics of organisms in kingdoms plantae or fungi are listed in the box.
(24)
The figure C represents Five kingdom classification.
What is Five kingdom classification?
The system of biological kingdoms is the way in which science classifies living things according to their ancestry over the course of evolution.
This means that all the species that make up these five large groups - some recent theories split them further into six or even seven - have common ancestors and therefore share some of their genes and belong to the same family tree.
As well as the kingdoms of living things there are other taxonomic categories within the same classification system such as, for instance, domain, phylum, class, order, family, genus and species.
Therefore, The figure C represents Five kingdom classification.
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Members of different species do not produce offspring due to:
A) Behavioral Speciation (differing mating rituals)
B) Temporal Speciation (varying breeding times)
C) Mechanical Speciation (gamete incompatibility)
D) any of these
(Please Answer Fast)
Answer:
Broadly speaking, different species are unable to interbreed and produce healthy, fertile offspring due to barriers called mechanisms of reproductive isolation. These barriers can be split into two categories based on when they act: prezygotic and postzygotic.
Explanation:
So the answer would most likely be C.
-Eijiro <3
In the disease atherosclerosis, a sticky material called plaque collects on the walls of the arteries.
How would this disease affect blood pressure and blood flow?
Answer:
In atherosclerosis, plaque can grow to create a blood vessel stenosis. This stops the flow of blood upstream of the obstruction and increases the vascular resistance it causes an increase in blood pressure
How does gene flow directly contribute to evolution?
Answer:
Evolution can also occur as a result of genes being transferred from one population to another. This gene flow occurs when there is migration. The loss or addition of people can easily change gene pool frequencies even if there are no other evolutionary mechanisms operating.
Explanation:
hope this helps!!!
The only type of human cell that is never replaced is ___. *
Answer:
The only type of human cell that is never replaced is Nerve cells.
Hope this helps you. Do mark me as brainliest.
The only type of human cell that is never replaced is nerve cell.
What is a nerve cell?Neurons are in charge of receiving sensory input from the outside world, sending action potentials to our muscles, and transforming and relaying electrical signals at every step in the process.
The nerve cell is the basic unit of communication in the nervous system (neuron). The cell body, a major branching fiber (axon), and numerous smaller branching fibers comprise each nerve cell (dendrites).
They do not divide in any way. There are only two exceptions to this rule: only two specific areas of the brain can produce new neurons. However, for the most part, the brain is unable to replenish dead neurons.
Thus, nerve cells are the ones that never gets replaced after getting injured.
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Compare and Contrasts Biotic Factors and Abiotic Factors. What are they?
How are the alike.
How are the different?
What is a eukaryote?
Question 2 options:
organism that does not have a nucleus
organism that does have a nucleus
organism that produces its own food
Answer:
an organism that has a nucleus
Explanation:
What is a eukaryote?
1 organism that does not have a nucleus
2 organism that does have a nucleus<<
3 organism that produces its own food
4 organism that is ancient
Why do siblings always look different from each other even though they have the same parents? *
A. Siblings look exactly the same.
B. This is because there are always random mutations in everyone's DNA.
C. There is no reason, this is just random.
D. Due to meiosis, siblings each get slightly different genetic information from both parents.
which one ^
Answer:
Siblings look different cause of the genetics combining through child creation
Explanation:
Genetic variation is inherited by offspring.
A. Artificial aelection
B. Natural Selection
C. Both
Answer:
Both
Explanation:
A person's skin color, hair color, dimples, freckles, and blood type are all examples of genetic variations that can occur in a human population. Examples of genetic variation in plants include the modified leaves of carnivorous plants and the development of flowers that resemble insects to lure plant pollinators. Even though in artificial selection, you take which genes are desired it is still passing genetic variation through offspring.
What do plants use to form
glucose?
Answer: Plants, unlike animals, can make their own food. They do this using a process called photosynthesis . During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light energy.
Help me pleeeeeaaasssseeee
is such a thing possible?
Answer:
Wait- so this bear can smell me ( ಠ U ಠ )
Explanation: ●_●
Answer:
PFFFFFT ok then
Explanation:
^﹏^ ~juno
You return from lunch to science class, and there are two clear liquids on your
desk.
What is the best/safest way to determine what the liquids are?
A. Taste it
B. Touch with your bare fingers
C. Boil it
D. Drag a magnet through it
Answer:
My best guess would be boil it!
Describe at least three ways in which viruses, bacteria, protists, or fungi are important in your daily life.
Answer: hem living in and on your body that are beneficial to you. ... heating it to at least 71.6°C for only 15 s. ... List three ways fungi are important to the environment.
Explanation:
Help me on question 5 please!!
Hello, I believe this is the answer;
After 2 half-lives: 1000 atoms.
After 4 half-lives: 250 atoms.
Hope this helps :)
Write the letter of the correct answer on the line at left.
7.
Benny uses a compass to navigate his way through the woods when he
is carnping. The needle on the compass reacts to Earth's magnetic field
by always pointing north. Which part of Earth is responsible for creating
its magnetic field?
A. Cilist
B. inner core
C. mantle
D. outer core
Answer
Outer Core
Because of the weight of the melting moving metal creates energy
Our planet is shielded from cosmic radiation and charged particles from our Sun by the magnetic field, which is created by the motion of molten iron in the Earth's core. It also offers the framework for compass navigation. Thus, option D is correct.
What role of outer core of earth in magnetic field?Radiative heating and chemical differentiation have caused the Earth's outer core to be in a state of turbulent convection.
The convective kinetic energy is transformed into electrical and magnetic energy through a mechanism that is somewhat similar to a naturally occurring electrical generator.
The magnetic field is not produced by the earth's core, since metals lose their magnetic characteristics at high temperatures.
Therefore, Because of the weight of the melting, moving metal creates energy.
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17.) Which of the following statements is FALSE about mutations?
a. They are almost always harmful
b. They can be caused by exposure to radiation
C. Some mutations can be beneficial
d. They change the genetic code by inserting, deleting, or substituting bases
There are two bright stars in a constellation. One of the stars appears red and the other star appears blue. Which of the following is the best explanation for the difference in the stars' color?
The blue star must be moving toward Earth and the red star away from Earth.
The red star must be moving toward Earth and the blue star away from Earth.
The red star must have a greater surface temperature compared to the blue star.
The blue star must have a greater surface temperature compared to the red star.
Given what we know, we can confirm that the explanation for the situation described is that the blue star must be moving toward Earth and the red star away from Earth.
How do we explain this?This has to do with a phenomenon known as the doppler effect. This effect explains how we can perceive a star as red or blue depending on its distance and on whether or not it's moving towards or away from us. When an object moves away from us, the wavelengths of the light it emits are stretched, making the object appear red. However, when it moves towards us, this increases the wave frequency that reaches us and we observe it as blue.
Therefore, we can confirm that the explanation for the situation described is that the blue star must be moving toward Earth and the red star away from Earth.
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