Answer:
i will say The cells change after being exposed to the chemical and this change is passed to the next generation of cells. as the answer
Explanation:
The cells change after being exposed to the chemical and this change is passed to the next generation of cells.
Which is considered a chemical mutagen?Most chemical mutagens are alkylating agents and azides. Physical mutagens include electromagnetic radiation, such as gamma rays, X rays, and UV light, particle radiation, such as fast and thermal neutrons, and beta and alpha particles.
What does a mutagen cause?The mutagen produces mutations in the DNA, and deleterious mutation can result in aberrant, impaired, or loss of function for a particular gene, and accumulation of mutations may lead to cancer. Mutagens may therefore be also carcinogens.
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A fossil record for whales demonstrates the evolution from one whale into two new whale species. Why is this supporting evolution?
Answer:
The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.
Explanation:
This is supporting evolution because it shows that the structure of the whale is changing over time.
HEEELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
30. L
31. R
32. R
33. L
34. L
Answer:
[tex]30)\blue{100cm = 1m}[/tex]
[tex]\boxed{\blue{ = L}}[/tex]
[tex]31)\green{1Mm = 1000000m}[/tex]
[tex]\boxed{\green{ = R}}[/tex]
[tex]32)\pink{1km = 1000000mm}[/tex]
[tex]\boxed{\pink{ = R}}[/tex]
[tex]33)\purple{1000micro \: \: \: meter} \\ \purple{ = 1mm}[/tex]
[tex]\boxed{\purple{ = L}}[/tex]
[tex]34)\red{1000000mm = 1km}[/tex]
[tex]\boxed{\red{ = L}}[/tex]
For four o'clock flowers, flower color is a case of incomplete dominance. The gene for flower color has two alleles: red (R) and white (r). What is the percent probability that one offspring from a parent with red flowers and a second parent with white flowers will have the genotype rr? Use a Punnett Square to figure out the likelihood.
Answer:
0%
Explanation:
The question is about a gene coding for flower colour in four o'clock plants. The alleles exhibit incomplete dominance i.e the allele for red color (R) is incompletely dominant over the allele for white color (r), hence, an heterozygous intermediate phenotype, which has a pink color, is produced when both alleles combine i.e. Rr.
A parent with red flowers will possess a genotype: RR while a parent with white flowers will possess a genotype: rr. When both parents are crossed using a punnet square (see attached image), all possible offsprings will possess a pink heterozygous phenotype with genotype Rr.
Therefore, the percentage probability of producing an offspring with genotype: rr is 0% since it is not possible considering the parent's genotypes.
10
Kinetic energy is the energy an object has due to its
Answer:do you do
The first line of defense involves which structure(s)?
Explanation:
Answer:
Its motion
Explanation:
the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
Read the passage from Darwin's journal. These two species of Amblyrhynchus agree, as I have already stated, in their general structure, and in many of their habits. Neither have that rapid movement so characteristic of the genera Lacerta and Iguana. They are both herbivorous; although, the kind of vegetation on which they feed is so very different. Mr. Bell has given the name to the genus from the shortness of the snout; indeed, the form of the mouth may almost be compared to that of the tortoise: one is led to suppose that this is an adaptation to their herbivorous appetites. It is very interesting thus to find a well-characterized genus, having its marine and terrestrial species, belonging to so confined a portion of the world. The aquatic species is by far the most remarkable because it is the only existing lizard which lives on marine vegetable productions. As I at first observed, these islands are not so remarkable for the number of the species of reptiles; as for that of the individuals, when we remember the well-beaten paths made by the thousands of huge tortoises—the many turtles—the great warrens of the terrestrial Amblyrhynchus—and the groups of the marine species basking on the coast-rocks of every island—we must admit that there is no other quarter of the world where this order replaces the herbivorous mammalia in so extraordinary a manner. What differences did Darwin find about the two species? One is fast, while the other is slow. One eats plants, while the other eats meat. One lives inland, while the other lives in the water. One has a long snout, while the other has a short snout.
Answer:
One lives inland, while the other lives in the water.
Explanation:
Amblyrhynchus cristatus is a marine reptile that lives in the Galápagos Islands. This species attracted the attention of Darwin because it is a marine iguana that lives exclusively in the Galapagos and, interestingly, their close relatives inhabit in land, also in the Galápagos Islands. The marine and land iguanas from Galápagos form a phylogenetic clade that is characterized by high diversification levels, which are evidenced by conspicuous phenotypic differences. These species can hybridize with each other, but the offspring are infertile. Recently, it has been shown by using phylogeographic analysis that both species diverged 8-10 million years ago.
Answer:
They both eat plants.
Explanation:
They are both herbivorous; although, the kind of vegetation on which they feed is so very different.
When oxygen first was released in the early seas it combined with iron to form
A)RNA
B)DNA
C)proteins
D) DNA molecules
In an organ transplant, a doctor transfers a donated organ from a recently deceased person to a live patient. One of the consequences is that the patient’s immune system—the system that protects against diseases and pathogens in the body—will reject the new organ. Explain why this consequence isn’t a concern with organs grown from human stem cells.
The immune response is usually triggered by the presence of the donor's own unique set of HLA proteins, which the recipient's immune system will identify as foreign.
What is graft rejection?To prevent infection, the immune system launches an attack against foreign invaders when it comes into contact with them. The immune system must be able to distinguish between our own healthy tissues and external invaders in order to avert an attack on our own cells and tissues (autoimmunity).
When the recipient's immune system assaults the donor graft and starts killing the transplanted tissue or organ, graft rejection takes place. The presence of the donor's own distinct collection of HLA proteins, which the recipient's immune system will recognize as alien, typically initiates an immunological response.
Histocompatibility refers to the degree of resemblance among the HLA genes of the donor and recipient; the more suitable the donor and recipient are genetical, the more accepting the recipient's immune system should be of the transplant. There will always be some degree of rejection, though, unless the donor and receiver are genetically identical (such as identical twins).
Therefore, the difference in HLA proteins results in graft rejection.
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If Earth was not spinning, there could still be a ____.
A. diurnal cycle
B. seasonal cycle
C. Hadley cell
D. Ferrel cell
If Earth was not spinning, there could still be a seasonal cycle. The correct option is B.
What is seasonal cycle?A hemisphere experiences winter and longer nights as it is tilted away from the Sun. A hemisphere experiences summer and longer days when it is inclined toward the Sun.
The duration and structure of daylight are largely constant at the equator.
The seasons are caused by Earth's tilted axis. Different regions of the Earth are exposed to the Sun's strongest rays at various times of the year.
Therefore, the Northern Hemisphere experiences summer when the North Pole tilts toward the Sun.
Seasonality describes regular cycles and changes in specific commercial sectors that depend on a specific season.
A season can refer to either a commercial season, like the Christmas season, or to a calendar season, such the summer or winter.
Thus, the correct option is B.
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*ANSWER PLS* What is one possible effect in humans of microbiological pollution? a.) heart disease b.) ecosystem destruction c.) cholera d.) eutrophication
Cholera is one possible effect in humans due to microbiological pollution. The correct option is c.
What is cholera?Cholera is a severe diarrheal condition caused by a Vibrio cholerae bacterial infestation of the intestine.
People can become ill if they consume cholera-contaminated food or water. The infection is frequently mild or without symptoms, but it can occasionally be severe and life-threatening.
Cholera is one possible effect in humans due to microbiological pollution.
Thus, the correct option is c.
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Which pair of terms best describes a wooden table?
biotic and nonliving
biotic and living
abiotic and nonliving
abiotic and living
Answer:
Biotic and non-living
Explanation:
=> Since it can't move,respire, ingest or reproduce , it is a non-living thing.
=> It is a component derived from the living part of an ecosystem(A wooden tree), so it is a biotic component.
Which question can be answered by science? A. Should the government be regulating the use of grocery bags? B. Is it O. K to force people to recycle their grocery bags? C. When is the most enjoyable time to go grocery shopping? D. How much energy does it takes to make a paper bag?
Answer:
How much energy does it takes to make a paper bag
Explanation:
Answer:
D
Explanation:
A, B, and C are not correct because an answer to these question could be counted as an opinion. Although you can support your opinion using science, the answer will be an opinion and not science.
D is the answer because you can find out the answer using science and mathematics. The answer to this question would not be considered opinion.
plz help!!
need explanation
Will give the brainliest!
Time PeriodA- Sleeping
Time PeriodB-Walking
Time Period C- Running
Time Period D-Walking
Time Period E- Frightened by a loud Noise
Explanation:
The question is asking you to label the time periods shown with the activity that represents the heart rate of the person.
Your heart rate is lowest when you're sleeping because your body is not exercising or under any stress
When you're walking your heart rate will steadily go up but not as high as running because running requires more work and physical strain than walking
Your brain is under extreme stress when you are startled by a loud noise which causes a spike in heart rate.
Answer:
The answer is a
Explanation:
It is not b because when someone is frighented by a sudden loud noise the heart rate will be very pointy.
Not c either because sleeping makes your heart rate very low.
Not d because waking make your heart rate increase (about 90 beats per minute) but then stay in the same rate.
So probably a because running increases your heart rate at a very big level for a long time but then it drop when you stop.
Hope this helps!
Put the steps of enzyme activity in order from first to last using the drop down menu beside each step. The chemical reaction occurs. A substrate enters the active site of enzyme. New substances called “products” are formed. The enzyme and the substrate bind to form the enzyme-substrate complex.
Answer: 1) b
2)D 3)A 4)C
Explanation: hope that helps!
___ competiton drives natural selection, as individual members of a species compete with each other for limited natural resources.
what is apple plus a banana it's really hard only big brain get it
Answer:
Panana is the answer buddy
How is the endosymbiotic theory used to support the emergence of eukaryota
Answer:
It involves a cooperative relationship between two cells
Explanation:
allow both to survive—and eventually led to the development of all life on Earth.
Which of the following has the least effect on reproductive potential?
producing more offspring at a time
having a longer life span
reproducing more often
reproducing earlier in life
Answer:
having a longer life span
Explanation: you will be out of eggs by the time your 50
help pleasssssssssssssssssssssssssse
Answer:
6.) Centi - one hundredth (1/100)
7.) Mega - one million ( x 1,000,000)
8.) Milli - one thousandth ( 1/1,000)
9.) Micro - one millionth ( 1/1,000,000)
10.) Kilo - one thousand ( x 1,000)
Hope this helps you
In an electron microscope, the sample is bombarded with a stream of electrons that are expelled from an electron gun. The electrons interact with the sample component, the result of which is transformed into an image. Why do you think electron microscopes allow for greater magnification than compound microscopes?
Answer:
It is because the electron microscope uses a shorter wavelength electron
Explanation:
In an electron microscope the sample is always bombarded with a stream of electrons. These electrons usually have shorter wavelengths.
The electrons interact with the sample component well, the result of which is transformed into an image which is always clearer and allows for greater magnification than the compound microscope as a result of the short wavelength electrons being used.
Answer:
Due to the shortened wavelength electron it causes a greater magnification than compund microscopes.
I need help on this question will give brainly points must be right.
Answer:
3
Explanation:
The answer is three, I just did it
Scientists often ask questions to clarify data or guide scientific research. What are two scientific questions you have that
could clarify relationships about the DNA or traits of these orchids?
Answer:What traits would orchids have if the MADS-box genes were not duplicated?
If the genetic mutation changed the shape of the flowers, would pollinators still be attracted to the orchids?
Explanation: The example given by Plato
If the genetic mutation changed the shape of the flowers, would pollinators still be attracted to the orchids.
What is Genetic mutations?The DNA sequence of a gene is altered to generate a different result, which is known as a genetic mutation. The DNA sequence of that gene is permanently altered.
For humans to develop, which is the process of change over a number of generations, genetic variances are crucial. In one person, a spontaneous genetic mutation takes place.
The genetic mutation of that person is passed down through generations (hereditary) to their offspring. If the mutation increases a person's likelihood of survival or immunity to disease, it starts to be handed down through generations and disseminated throughout the community.
Therefore, If the genetic mutation changed the shape of the flowers, would pollinators still be attracted to the orchids.
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If the number of photosynthetic organisms on Earth decreased drastically, which would happen as a result? Less water would be available on Earth’s surface. Less solar energy would reach Earth’s atmosphere. More oxygen gas would be found in Earth’s atmosphere. More carbon dioxide gas would be found in Earth’s atmosphere.
If photosynthetic organisms are decreasing on Earth there is no consumption of carbon dioxide, hence option 4 is correct.
How much carbon dioxide Earth’s atmosphere?The amount of oxygen in the atmosphere will likewise decrease as the number of photosynthetic species rises.
More carbon dioxide gas would be found in the atmosphere because forests, especially rainforests, create more oxygen. The development of oxygenic photosynthesis was the most significant metabolic advancement in Earth's history.
It liberated life from the finite supply of reductants drawn from geochemistry and allowed it to create energy and reduce power directly from sunshine and water.
Therefore a decrease in photosynthetic organisms increases the carbon dioxide gas in Earth’s atmosphere.
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Which element is less electronegative than barium (Ba)?
The Periodic Table
O A. Lead (Pb)
O B. Radon (Rn)
O C. Beryllium (Be)
D. Cesium (Cs)
Answer:
cesium
Explanation:
cesium has 0.79 electronegativity and barium has 0.89. All other element have electronegativity higher than that of barium
In exocytosis, the membrane package fuses with _____.
the cell membrane
the nucleus
a gap junction
a transport protein
Answer:
the cell membraneExplanation:
In exocytosis, the membrane package fuses with the cell membrane.
[tex]hope \: this \: helps[/tex]
Which of these does not determine an ecosystem carrying capacity for a population?
A. Food
B. Space
C. Migration
D. Water
Please answer it’s urgent would be very helpful . Thank you so much !
What happens in the G2 phase of the cell cycle?
Answer:
A. Prepares for cell division
Explanation:
The S phase is when the DNA divides, so B is incorrect.
The post mitotic phase (G0 phase) happens before the cell divides, so C is incorrect.
Which cell organelle is most directly involved with the bonding of amino acids?
A) mitochondrion
B) endoplasmic reticulum C) cell wall
D) ribosome
Ribosome is the cell organelle that is most directly involved with the bonding of amino acids
RIBOSOME:
Ribosome is an organelle found in both eukaryotic and prokaryotic cells. It is the organelle involved with the synthesis of proteins in living cells. This is because the process of translation i.e. synthesis of proteins from mRNA occurs in the ribosome. Proteins are macromolecules formed from the joining together of series of amino acids via a peptide bond. This means that amino acids are bonded to form proteins. Since, ribosomes are the organelles for protein synthesis, hence, it is the cell organelle that is most directly involved with the bonding of amino acids.Learn more: https://brainly.com/question/241631?referrer=searchResults
what does the word "Cuneiform " means?
Answer:
It's an old writing system from ancient Mesopotamia.
Explanation:
If you check Wikipedia you'll see that cuneiform was a writing system from the sumerians. it comes from the Latin term that means wedge, which is kind of the tool they used back then to wedge shape clay pieces.
Light-dependent reactions
Light-independent reactions
Sun's energy absorbed
Sugars produced
Answer:
The question is unclear but I suppose we're to match the stage of photosynthesis with it's description below.
Light-dependent reactions- Sun's energy absorbed
Light-independent reactions- Sugars produced
Explanation:
Photosynthetic process involves two main stages viz: light dependent stage and light-independent stage. In the light dependent stage, light energy from the sun is trapped or absorbed by the Chlorophyll pigment of green leaves. The absorbed energy is used to split water in a process called PHOTOLYSIS OF WATER.
This process (photolysis) releases protons that build up in the thylakoid membrane to produce a proton pump that generates ATP. At the end of the light dependent reactions, ATP and NADPH molecules are produced.
In the light independent stage which occurs in the stroma of the CHLOROPLAST, the ATP and NADPH molecules produced in the light stage are used to power and reduce carbondioxide (CO2) to synthesize sugar (glucose).
The main provisions of the Endangered Species Act include all of the following EXCEPT?
the federal government may not carry out a project that would jeopardize endangered species.
the compilation of a list of endangered and threatened species, and prepare a recovery plan for each.
one may not catch or kill, uproot, sell or trade any endangered or threatened species.
individuals may not destroy the habitats of endangered species.
Answer:
the compilation of list of endangered species and prepare a recovery plan for each