Answer:
Explanation:
Cytokinesis is the process of the parents cytoplasm splitting between the two daughter cells. It happens when miosis and mitosis occur in animal cells. Hope this helps!
help pleaseeeee and please don’t waste my time by saying that ydk :) ty
Answer:
1. Arsenic, benzene, formaldehyde, lead, and mercury are just a few of the more than 70 cancer-causing chemicals in cigarette smoke.
2.They work, for instance, to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation. They also help propel sperm.
3.Spirometry measures how much air you can breathe in and out. It also measures how fast you can empty the air out of your lungs. Spirometry helps diagnose breathing problems such as asthma and COPD.
4. Tar causes cancer of the lungs, mouth and throat.
2x^2+x-6=0 solution(s)?
Answer:
-2 and 1.5
Explanation:
USE DESMOS! IT IS A FREE GRAPHING CALCULATOR SUPER USEFUL!
Which of the following can be interpreted from an age-structure diagram of a country? *
1 point
The maximum age when women give birth
The total fertility rate of the population
The relative population growth rate of the population
The carrying capacity of the local environment
Answer:
a
Explanation:
What is our heart made out of?
Explanation:
blood and veins i guess.
What is a base-pair substitution?
(gene mutation)
Answer:
noun, plural: base pair substitutions. A type of mutation involving replacement or substitution of a single nucleotide base with another in DNA or RNA molecule. Supplement. This type of mutation occurring in noncoding sequences often does not result in an altered amino acid sequence during translation.
Explanation:
hope that helps:)
Can you please tell me an explanation of what happens in the Anaphase stage in Mitosis please?
Please dont copy and paste
Answer:
In anaphase, the the chromosomes move apart to the opposite sides of the cells. The spindle fibers, which help to move apart the chromosomes, also get shorter. You can think of the A in Anaphase for Apart.
Explanation:
Please explain how cellular respiration and photosynthesis are considered opposite processes. Do not tell me on how the equations are reverse of each other, that is not what I am looking for.
Answer: when the 6CO2 and the 6H2O in photosynthesis go in and they break up in to partials and they change and form in to 6O2 and C6H12O6, and then when the 6O2 and the C6H12O6 go in to cellular respiration and they do the same thing only 6CO2 and 6H2O comes out and the process start all over again.
Explanation:
Which is a non-Mendelian trait?
A. A trait controlled by many genes
B. A trait with a clearly dominant form
C. A trait controlled by one gene
D. A trait with two alleles
Answer:
The answer would be A.
Explanation:
Non-Mendelian traits are traits that are not passed down with dominant and recessive alleles from one gene. Examples of polygenic traits are hair color and height. ... Other traits, such as blood type, show codominance, where there is no dominant or recessive allele.
A non-Mendelian trait would be a trait that is controlled by many genes. The right option would be A.
Mendelian traits are traits that obey the principles of the Mendelian laws While non-Mendelian traits simply do not conform with the principles and laws of Mendel.
A trait that is Mendelian would have the following:
Show simple dominance or recessive formControlled by a single geneEach gene must have 2 alleles. The 2 alleles can be the same (homzygous) or different (heterozygous).Thus, a trait that is controlled by many genes is clearly a non-Mendelian trait.
More on Mendelian traits can be found here: https://brainly.com/question/22783595
Can anyone help? I’ll give brainliest!! :)
Describe the types of matter and energy that are transferred or converted during each of these processes (photosynthesis and cellular respiration). Make sure to specify the process involved with each transformation or conversion.
Answer:
plasma gun and kfc
Explanation:
whats atp synthesis and diffusion of water?
Answer:
ATP synthase is an enzyme that catalyzes the formation of the energy storage molecule adenosine triphosphate using adenosine diphosphate and inorganic phosphate. Water moves across cell membranes by diffusion, in a process known as osmosis. hope that helps for now..
Do you think an organism can survive alone in nature. justify your view.
Answer:
no it cannot live alone because nature depends on everyone
Help me PLEASE! Choose one answer! First one to answer get Brainliest!
3.) An organism's pre-birth stage of development?
A.) Fossil Record
B.) Embryo
C.) Coral
D.) Gastropod
Answer:
it is the embryo 100% I am sure of it
Answer:
B
Explanation:
Embryo is an organism in the earlier stages of development; in humans, usually the cell growth up to the end of the seventh week in utero
What are some
possible results of
base-pair substitutions?
look at pic n answer please
Answer:
I think B hopefully thats the asnwer
A leaf cell has a very low concentration of salt. What would happen to a leaf cell if it were placed in a highly concentrated salt solution?
A) The cell would lose water and the membrane would shrink slightly
B) The cell would gain water and break the cell wall
C) The cell would gain water and stretch the cell wall
D) The cell would lose water and the membrane would collapse
Answer: D if I am correct
Answer:
D) The cell would lose water and the membrane would collapse
Explanation:
I dONt WaNt TO `PLaY wItH a FisHEy On Me :)
Answer:
better slap your knee
Explanation:
tiko
Answer:
your life your choice.you is free to choose
HELP DUE IN 5 MINS
What do you think are the three biggest changes a household could make to reduce its use of water?
Answer:
turn water of when brushing teeth, take shorter showers and dont waste water
Explanation:
Help me PLEASE! Choose one answer! First one to answer get Brainliest!
5.) A type of fossil that traces an organism’s existence or behavior such as a nest, footprints, or droppings.
A.) Body Fossil
B.) Trace Fossil
C.) Petrified Fossil
D.) Cast
Answer:
B
Explanation:
Trace fossil because it tracks the activities and behavior of the past life. the fossils are different from body fossils that preserve the actual remains of the body such as shells or bones.
IO
Which is a characteristic of
compounds?
A. Compounds are only pure
substances.
B. Compounds are the smallest
form of a particle.
C. Compounds are made of at
least two types of matter.
Answer:
the answer is C
Explanation:
compounds are made up of two or more atoms, so they are made up of at least two types of matter
Answer:
B
Explanation:
Compounds are very very small
A researcher noticed that a similar CH2 molecular structure was also located in the plasma membrane of an animal cell. This CH2 molecular structure contained a negatively charged phosphate group. Which statement BEST describes the primary function of the CH2 and phosphate molecular structure located in the plasma membrane?
A. It contains the genetic information needed for protein production.
B. It catalyzes specific chemical reactions in the cytoplasm of a cell.
C. It stores the energy that a cell needs to perform various life processes.
D. It allows a cell to regulate the movement of materials into and out of a cell.
Answer:
it allows a cell to regulate the movement of materials into and out of a cell.
Answer:
D. It allows a cell to regulate the movement of materials into and out of a cell.
Explanation:
I got it right on my test.
What happens to jet streams as they get closer to the equator?
They blow faster.
They do not change.
They dissolve.
They blow slower.
Answer:
The 4th is the answer (They blow slower)
Jet streams blow slower as they get closer to the equator.
What are Jet streams?Jet streams are fast flowing, narrow, meandering air currents in the
atmospheres present in some planets such as Earth.
The Equator which is the imaginary line that divides the planet into
Northern and Southern hemisphere possess jet streams which blow
slower as a result of light winds found in this region.
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BRAINLIEST IF CORRECT!!!!! One line of evidence that evolution occurs through the theory of natural selection is..... Question 3 options:
A. Sailing around the Galapagos to observe multiple species
B. DNA is used to show where adaptations come from.
C. Peppered moths were observed to illustrate natural selection.
D. Breeding turtles to show their adaptations.
all I know is its not B
Answer:
the answer is C
Explanation:
I took the test
Answer:
C
Explanation: I took the K-12 test
Alternation of generation
Answer:
The answer to this question is given below in this explanation section.
Explanation:
"Alternation of generation"
Alternation of generations is the type of life cycle that occurs in those plant and algae in the archaeologist and the heterokontophyta that have distinct haploid sexual and diploid asexual stages.In these groups a multicellular haploid gametophyte with n chromosomes alternates with a multicellular diploid sporophyte with 2n chromosomes made up of n pairs.A mature sporophyte produces haploid spores by meiosis a process which reduces the number of chromosomes to half from 2n to n.
Two haploid spores germinate and grow into a haploid gametophyte.At maturity ,the gametophyte produces gametes by mitosis which does not alter the number of chromosomes.Two gametes from different organism of the same species fuse to diploid zygote,which develop into a diploid sporophyte . This cycle from gametophyte to sporophyte in the way in which all land plant and many algae undergo sexual reproduction.
How many pairs of homologous chromosomes are in this picture?
Help plz
Answer:
3
Explanation:
they are in a similar gene position
What important event a take place during prophase I
Answer:
chromatin condenses to form visible chromosomes
the nucleus and nucleolus disintegrate
homologous chromosomes pair up to tetrads
Explanation:
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In order for protein synthesis to occur, both transcription and translation must occur. Which of the following statements describes the difference between transcription and translation?
In transcription, the genetic code of a DNA molecule is encoded. Translation is the process of converting the DNA code into a code that RNA can use.
In transcription, an amino acid chain is encoded in a DNA molecule. Translation is the process of turning the amino acids into nucleic acids in an RNA molecule.
In transcription, a double helix DNA molecule is split into two separate single strands. Translation is the process of joining each single DNA strand with a single strand of matching RNA.
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. Translation is the process of creating an amino acid chain using the encoded messenger RNA.
Answer:
1
Explanation:
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. The translation is the process of creating an amino acid chain by using the encoded messenger RNA. So the correct option is D.
What are transcription and translation?The first step in the process of gene expression is called transcription. In this process, the DNA sequence of a gene is copied for the formation of an RNA molecule.
RNA polymerase enzymes link the nucleotides of DNA to form an RNA strand. The DNA strand is the template. For every gene in the genome, transcription is separately controlled.
The translation is the process by which an mRNA molecule encodes for a protein. The process of translation happens with the help of tRNA in the ribosomes.
Translation requires ATP which is produced by the tRNA. The tRNA in the ribosomes supplies energy to RNA for the transcription of proteins The entry of mRNA occurs by the smaller subunit of RNA and the amino acid chain extends from the larger subunit.
Therefore the correct option is D.
Read more about translation and transcription, here
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Determine whether the statement is true or false, and why. “If a point mutation occurs in a tumor gene it can become activated. This allows the rate of cell division to increase unregulated.”
A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
B. True
C. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This inhibits the rate of cell division decreasing it drastically.”
D. False, it should read “If a point mutation occurs in a Proto-oncogene gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Answer: A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Explanation: I already know this for a fact.
The statement “If a point mutation occurs in a tumor gene it can become activated. This allows the rate of cell division to increase unregulated" is false.
What is Point mutation?Point mutation may be defined as a method of genetic alteration that is caused by the substitution of a single nucleotide for another nucleotide in the DNA sequences. In this type of mutation, a single nucleotide base is altered through insertion or deletion from the sequence of DNA or RNA.
The above statement is false because if a point mutation occurs in a tumor suppressor gene it can become inactivated which terminates the expression of suppression of tumors.
And now the cell has the capability to grow unexceptionally with an irregular pattern. This allows the rate of cell division to increase unregulated and have a most potent threat of being infected with cancers.
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what are the differences between RNA and DNA
Answer:
The difference between RNA and DNA is the sugar present in the molecules
Explanation:
In RNA,the sugar molecule present is Ribose while in DNA the sugar molecule present is Deoxyribose.
During replication, enzymes called ____________________ untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the _______________________.
Answer:
During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
Explanation:
Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained.. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
The study of genes is called genetics.
The correct answer is During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
What is replication?Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
For more information about the DNA, refer to the link:-
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Which of the following is not a symptom of desertification?
A) decrease in salt content of the soil
B) lowering of the water table
C) reduced surface water
D) increased soil erosion
E) loss of native vegetation
Answer:
A
Explanation:
Effects of salts on plants As soils become more saline, plants become unable to