Answer:
Evolution has occurred thanks to many random changes in the DNA base sequence that we call mutations. This is caused by errors in the genetic information contained in the cells - due to chemical or physical factors - and also its subsequent propagation by replication, being transcendent for evolution those that will later be transmitted to the offspring: somatic cells if reproduction it is asexual and the gametes if it is sexual. For this reason, we say that mutations are the primary source of gene variability, essential for evolution to exist. Thus, without mutations, the genetic variability that natural selection needs would not be present - in addition, such diversity is important for the population to more successfully mold (or adapt) to continuous environmental changes.
Explanation:
A mutation is a change in the information contained in the DNA of cells. The DNA of an organism influences all aspects of its life. Therefore, a change in the DNA of an organism can produce changes in all aspects of its life. The mutation increases the genetic variability of the species and contributes to the adaptation of the species to the environment and to their evolution. Viability and fertility are associated with adaptation, the total capacity of an organism to survive and reproduce. The effect of a mutation in any generation is minimal, but over time a considerable amount of variation from mutations can accumulate. Most mutations are harmful and their carriers die, but those that produce an improvement remain in the species and are essential in the evolutionary process. When mutations appear in a certain population, the genotype changes from generation to generation, appearing individuals with characteristics different from those of their predecessors. This is how the population evolves, being able to originate new species. Mutations that are detrimental to the carrier individual will be eliminated by natural selection.
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Another Organ System that depends on mine
Answer: Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs
Explanation:
<3
Please help will mark brainliest and give 12 points
Answer:
anabalic (building up) : photosynthesism builds up molecules
catabolic (breaking apart): cellular respiration, helps cells multiply and stay in good condition (using energy to maintain the cells), complex molecules are broken down, energy is released
Explanation:
During translation small organelles called __ read the mrna sequence ?
Answer:
thjs may be wrong but I am not sure ribosomes
_____ is a force caused by air that slows objects down
Answer:
Drag
Explanation:
Drag is a force caused by air that slows objects down
Friction is a major force that slows the object down, air resistance is a type of frictional force.
What is air resistance?Air resistance is a kind of frictional force that slows down an object from moving in a particular direction.
During the movement an object has a particular speed for movement, speed depends on how friction works, more friction slows the speed of an object a low friction allows the object to at a particular speed.
Air is a mixture of gases and particles in the atmosphere, these particles create a force during the movement of an object in the air, and these forces decide the actual speed of object movement.
Therefore air resistance is a force that slows the object.
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Molten lava come to the surface and cool forming the first land. true or false
Answer:
true
Explanation:
common sense
your welcome for helping :)
what are the two types of ATP production available in our muscles?
Answer:Muscle cells are able to produce ATP with oxygen, which is called aerobic respiration, or without oxygen, an anaerobic process called anaerobic glycolysis or fermentation. The process in which ATP is made is dependent on the availability of oxygen (see the Cellular Respiration concepts).
Explanation:
I’ll mark brainliest!
Answer:
B
Explanation:
Which is NOT true of magnetic
domains?
A. Magnetic domains are groups of aligned
atoms.
B. Magnetic domains are too small to be seen.
C. Magnetic domains are outside of a magnet.
The study of magnetic domains is defined as the micro magnetics. The Magnetic domains are outside of a magnet is not true. The correct option is C.
What is a magnetic domain?A magnetic domain is defined as a region within a magnetic material in which the magnetization is in a uniform direction. This indicate that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.
The magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron, nickel, etc. The domains are found to be oriented randomly if there is no external magnetic field.
Thus the correct option is C.
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Suppose an individual giraffe could not reach high leaves on a tree
its neck was too short. Lamarck's theory would suggest that the giraffe could
undergo physical changes that would lengthen its neck simply by stretching
to reach the branches. What experimental result would disprove this?
E The necks of giraffes today are shorter than the necks of early giraffes.
G. Giraffes with longer necks prefer to eat leaves from higher branches.
H. Neck lengtı does not change when giraffes are fed branches at different
heights.
1. Giraffes with longer necks frequently produce offspring that also have
longer necks.
Answer:
the last one according to me
What kind of seeds should farmers plants in order to grow giant pumpkins,and why is this important?
Answer:
pumpkin need too much of sunny place.
Can you guys pls help me?!!! It’s due tonight put them in order pls :)
Since infrared light is not visible, colors were artificially assigned to the photo using the following scheme:
Color Photographed Wavelength
blue 1.05 μm
green 1.25 μm
red 1.60 μm
If all the galaxies shown were composed of the same kinds of stars and nebulae, then the reddest galaxies would
A.
be moving toward us the fastest.
B.
be moving away fastest.
C.
be youngest.
D.
contain the most hydrogen.
Answer: be moving away fastest
Explanation: I got it right in study island
What are some ways we can stop global warming in the arctic?
Help!
Answer:
Reducing your carbon emissions and dependence on fossil fuels can help save the Arctic.
Discover practical ways you can make a difference, from joining our campaigns to shopping greener at the supermarket and making your home energy efficient.
Answer:
Reducing your carbon emissions and dependence on fossil fuels can help save the Arctic.Discover practical ways you can make a difference, from joining our campaigns to shopping greener at the supermarket and making your home energy efficient.Tell your government you want them to back green energy – to fight climate change and stop the rush to exploit Arctic energy resources.Reduce Water Heating Requirements.That's it...
Hope it was Helpful
Mark me as Brainliest please!
Please define the terms, don’t copy and paste. I’m giving 15 points for it
Which of these shows the correct hierarchical sequence?
Answer:
The correct answer is B ❤️
What elements are needed to carry out photosynthesis? Select all that apply.\
Answer: carbon dioxide, water, and sunlight.
Explanation:
Lowest of low tides occur approximately how often?
a particle of oxygen has 8 protons and 8 electrons. is this an atom or an ion? what's the charge?
Answer: It is Atom and the charge would be postive.
Explanation: If the atom had 8 protons and 8 electrons (oxygen for example), knocking one of the electrons out, makes 8 protons and 7 electrons. The atom now has a net charge of +1 because the 7 electrons cancil the positive charges of 7 of the protons in the nucleus, but there is one remaining proton with a positive charge.Oxygen's 8 electrons are negatively charged, and they orbit the atomic nucleus and balance the positive charge of the 8 protons. The positive charge of 1 proton exactly cancels the negative charge of 1 electron. Answer 9: Oxygen is atomic number 8 on the periodic table, which means it has 8 protons!
Hope this helps :) Can u plz mark me branliest :)
A particle of oxygen has 8 protons and 8 electrons in an atom and the charge on it is zero.
What is an atom?It is the smallest particle of matter composed of electrons and a nucleus of protons and neutrons.
What is an ion?It is an atom with a positive or negative charge due to either loss or gain of electrons.
Every atom tends to have a noble gas configuration for stability and they either tend to lose, gain, or share electrons to achieve it.
The oxygen atom generally gains 2 electrons to complete its octet and has a net -2 charge.
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I’ll really appreciate it if you help me out with these 2 questions .
Answer:
8. C
9. Im sorry I don't know
Any variation that can help an organism survive in its environment is called a(n):
Answer Choices:
-survival toolkit
-homologous structure
-adaptation
-mutation
-differentiation
-vestigial structure
Answer:
adaptation is the answer
What impact can planting new trees have on the water cycle?
a: More carbon dioxide is released into the atmosphere b: Transpiration increases
c: Condensation decreases
d: More water infiltrates into the ground
What is the source of energy for all biogeochemical cycles, including the water cycle?
a: winds
b: gravity
c: the Sun
d: volcanic eruptions
Which of the following statements about the water cycle is TRUE
a: Plants do not influence the water cycle
b: Precipitation that falls to the ground can end up as groundwater
c: The water cycle only continues during daylight hours
d: Once water flows into the ground, it is stuck there forever
Which of the following happens as a result of eutrophication?
a: excessive growth of algae b: increased bacterial growth c: decrease in oxygen levels d: all of the above
Answer:D,C,
Explanation:
Q1)Trees increase the ability of the soil to retain stormwater by absorbing water from the ground. The roots also help to break up compacted soil as they expand, allowing water to flow more easily downward into the groundwater level.
Q2) The Sun's energy drives the water cycle. The sun warms the ocean's surface and other bodies of surface water, allowing liquid water to drain and ice to sublime (transform from a solid to a gas). These solar-powered processes release water vapor into to the atmosphere.
Thats All I have
Which statement describes the synapse?
A. It is the gap between neurons that ensures that information travels in multiple directions.
B. It is the gap between neurons that ensures that information travels in one direction only.
C. It is the part of the neuron that carries information through electrical impulses to the cell body.
D. It is the part of the neuron that carries information through chemical impulses to the cell body.
[tex]\pink{\bigstar}[/tex] [tex]\large\underline{\underline{\bf\green{Synapse:-}}}[/tex]
✯ Synapse is the gap between neurons that ensures that information travels in one direction only.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Therefore, the 2nd statement [B] is correct.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
[tex]\pink{\bigstar}[/tex] Additional Information:-A Synapse is a small gap at the end of a neuron that allows a signal to pass from one neuron to the next. Synapses are found where nerve cells connect with other nerve cells. Synapses are the key to the brain's function.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
The term synapse was first introduced in 1897 by Michael Foster in his "Textbook of Physiology" and derived from the Greek synapsis, meaning "conjunction."
Answer: B) It is the gap between neurons that ensures that information travels in one direction only.
Explanation: this is the right answer ik cuz i just completed the quiz and got 100% thx to the person above!! Im just double confirming that this is the right answer.....hope this helps :D
Alright, I’m begging someone for help plz
Which of these landforms would most likely be found at a divergent boundary? A Fault line B Mid-ocean ridge C Volcanic island D Mountain
Answer:
I think B
Explanation:
Answer: it’s A and C clowns
Explanation:
why is being heterozygous for sickle cell anemia considered an advantage?
Answer: They may be maintained by heterozygote advantage
For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria.
Explanation:
Hope this helped
. The Texas Horned Lizard has a blood shooting defense mechanism that shoots out
from the corner of its eye. The lizard's blood also tastes bad to its predators. If the
lizard feels threatened it gives the predator a taste as a warning.
Which of these explains the success of the Texas Horned Lizard?
A. The lizard displays several adaptations due to a reduction in genetic diversity.
B. The lizard inherited traits to provide an advantage defense mechanism that helps it survive.
C. The loser inherited on favorable traits that decrease the chance of survival.
D. The lizard inherited traits that made a hybrid species that allows it to survive in an extreme environment.
Answer: lowkey think its B
Explanation:
The success of the Texas Horned Lizard is :
B. The lizard inherited traits to provide an advantage defense mechanism that helps it survive.
Texas Horned LizardThe success of the Texas Horned Lizard is the lizard inherited traits to provide an advantage defense mechanism that helps it survive.
The Texas horned lizard or "h-orny amphibian" may be a flat-bodied and fierce-looking reptile. The head has various horns, all of which are noticeable, with two central head spines being much longer than any of the others.
Thus, the correct answer is B.
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Why might people use solar energy for their homes?
Answer:
There are many reasons why homeowners go solar, but improving the environment and cutting energy costs are the most common. Many people are aware that solar is a great home efficiency upgrade and are eager to reduce their carbon footprint while also improving property value.
Explanation:
4. Cross a white bull with a white cow. Show the Punnett Square:
% Red Cow
% Roan Cow
% White Cow
Answer:
100% white cow
Explanation:
This question involves a single gene coding for skin color in cattle. The allele for red color (R) is codominant with the allele for white color (r). Hence, the roan cattle (Rr) will possess both red and white coloration.
According to this question, a white bull (rr) is crossed with a white cow (rr). Each parent will produce the "r" gamete, which when used in a punnet square will produce all WHITE COWS i.e 100% white cows. See punnet square attached.
Answer:
white cow
Explanation:
Will mark brainliest and give thirteen points
the awnser is D
a neap tide is when the moon is either above or below earth
and a spring tide is when the moon is on the side/both sides middle of earth.
Hope this helps and isn't too confusing.