A change in DNA has caused a snail to be very different from the other snails.
Suggest why there might be an increasing number of snails similar to this snail in each future generation.
It must have been favorable for the snail's DNA to have undergone this mutation or change, which may have contributed to its survival. Natural selection will cause snails that lack the characteristic.
What are the advantages of mutations?Beneficial mutations, which are inherited, improve the likelihood that an organism will survive and be naturally selected, to name a few advantages of mutations.
Because it produces a new DNA sequence for a specific gene and a new allele, mutation is crucial as the initial stage of evolution.
Intragenic recombination is another method by which recombination can generate a new DNA sequence (a new allele) for a particular gene.
Therefore, a change in DNA has caused a snail to be very different from the other snails.
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in which phase in cell cycle does the DNA structure change?
Answer:
In the eukaryotic cell cycle, chromosome duplication occurs during "S phase" (the phase of DNA synthesis) and chromosome segregation occurs during "M phase" (the mitosis phase).
Explanation:
Answer:
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What could be a human factor that could cause algae blooms?
(THIS IS 8th GRADE EARTH SCIENCE)
Fertilizer Runoff
The excess nutrients provided by the fertilizer allow for rapid growth of algae and microorganisms. This fertilizer runoff can come from agricultural lands, or from residential areas.
How does genetic drift compare to natural selection?
A. The key distinction is that in genetic drift allele frequencies change by reproductive success, whereas in natural selection allele frequencies change by chance.
B. Distinction in genetic drift and natural selection is never by chance.
C. The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success.
The key difference is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success. The correct option is C.
What is genetic drift?
Genetic drift is the change in frequency of an existing gene variant in the population due to random chance. Genetic drift may cause gene variants to disappear completely and thereby reduce genetic variation. It could also cause initially rare alleles to become much more frequent, and even fixed.
Natural selection is a natural process in which only the superior characteristics are moved to the next generations.
Therefore, the correct option is C. The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success.
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True or false plants help produce carbon compounds through photosynthesis
Darwin studied which animal to support his idea of the Theory of Evolution by Natural
Selection?
Answer: A visit to the Galapagos Islands in 1835 helped Darwin formulate his ideas on natural selection. He found several species of finch adapted to different environmental niches. The finches also differed in beak shape, food source, and how food was captured. brainliest??
Explanation:
"Darwin studied the beak morphology of Galapagos finches to support his idea of the Theory of Evolution by Natural Selection. He was fascinated by how every finch has a unique adaptive feature used depending on the relied resources in the environment, which is the main reason why he chose this animal to study in support to his theory."
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if you know you have 32% adenine you can figure out the percent of cytosine?
please hurry
Answer: 18%
Explanation:
Use Chargaff's rules which states that 100% is total of all 4 bases and Adenine and Thymine need to have 1:1 ratio and Cytosine and Guanine need to have 1:1 ratio
32% Adenine = 32% Thymine
32 + 32 = 64 100 - 64 = 36 36/2 = 18
18% of Cytosine and 18% of Guanine
Include in your answer how human activities are affecting biodiversity and how they influence the corn species’ population dynamics.
i dont know bro i wish i could help
help please will mark brainlist answer
Answer: heat and pressure
Explanation:
Answer:
I think it's a volcanic eruption
Explanation:
Las erupciones volcánicas son fenómenos que ocurren con cierta frecuencia y que han permitido la formación de los suelos derivados de cenizas volcánicas que se conocen localmente como Trumaos, explica el Dr.
Explain how vaccinating chickens reduces the number of cases of salmonella
food poisoning
Answer:
huh
Explanation:
Ips
Select all that apply. Lymph nodes are located in
the
groin.
blood.
neck.
arms.
armpits.
Answer:
Lymph nodes are located in the groin, neck, and armpits
Explanation:
They are small bean-shaped things in your body that help filter blood and in some severe and very rare cases prevent cancers
[PLZZZZZZZZZZ HELLLPPPPPPPP] Drag the tiles to the correct boxes to complete the pairs.
Before the presence of living organisms, Earth was a very different place. Match each fact about Precambrian Earth to the sphere most affected by it.
Answer:
Atmosphere: oxygen spilled into this sphere from ocean waters
Biosphere: cyanobacteria began to emerge as a life form
Hydrosphere: oceans contained far less salt than they do today
Lithosphere: Oxidation in rocks and minerals was not possible
Explanation: well I can actually remember from what I had already learned in school last year
Answer:
hes wrong got 100 on it with this order trust
Explanation:
Cyanobacteria began to emerge as a life-form.
Oceans contained far less salt than they do today.
Oxygen spilled into this sphere from ocean waters.
Oxidation in rocks and minerals was not possible.
1. Elaborar resumen del texto sobre los estados de la materia( usar alguna estrategia: mapa mental, conceptual, historia, cuento)
Answer:
Sólido, líquido, gas y plasma.
Explicación:
Materia son las sustancias que ocupan espacio y tienen peso. Hay cuatro estados de la materia, es decir, sólido, líquido, gas y plasma. Todos los materiales presentes en este universo en estos cuatro estados. Los estados de la materia cambian con el aumento o la disminución de la temperatura del material. si la materia sólida se calienta, se derrite y cambia a estado líquido y luego gaseoso mientras que, por otro lado, la temperatura decreciente conduce a la condensación y congelación de la materia que causa el cambio de estado gaseoso a líquido y sólido. El plasma está formado por un gas de iones, átomos o moléculas.
i need it fast
After chewing foods like rice, potato and bread, for a while, we can feel a mild
sweet taste. Give reason for this.
dude, you asked brainly the whole worksheet?? Do it yourself sreerag!!
How would a disease that infects and kills Jerboa most directly affect the given
food web above?
Please help me :( will give brainliest
Answer:
I think its D correct me if wrong
Explanation:
Hope this helps! :)
Answer:
C. The complete set of reactions carried out by a cell.
Explanation:
1. Coloca verdadero o falso. En caso de ser falso, justifica tu respuesta y, si es verdadero, amplía. Tanto la justificación como la ampliación debe tener 5 renglones aproximadamente y debe estar construida con tus palabras (incluyendo vocabulario específico): "Algunos seres vivos, son sistemas que no interaccionan con el ambiente
Answer:
Falso
Explanation:
Todos los seres vivos son sistemas abiertos los cuales requieren de un intercambio constante de energía y materia con el ambiente. La materia y energía incorporada por un organismo es utilizada para la síntesis de estructuras moleculares requeridas para su supervivencia (por ejemplo, proteínas del citoesqueleto, críticas para el funcionamiento celular) y/o transformada en energía a fin de llevar a cabo funciones metabólicas (por ejemplo, crecimiento, desarrollo, reproducción, etc.). Un ejemplo de esto es el oxígeno cuya escasez afecta la supervivencia de especies de respiración aeróbica y, simultáneamente, la actividad de estas especies incide en la cantidad de oxígeno presente en la atmósfera. Por otra parte, durante el proceso de transformación de la energía que se da dentro del organismo, la mayor parte de dicha energía se disipa nuevamente al ambiente en forma de calor.
Mitosis vs. Meiosis answer chart
Answer:
why do cells divide is mitosis
mitosis is understood to involve five phases
how many daughter cells produced in mitosis two
how many daughter cells produced in meiosis four daughter cells
A condition in which every cell in the body has an extra set of chromosomes is not compatible with life. In some cases, a change in the number of chromosomes occurs only in certain cells. When an individual's cells differ in their chromosomal makeup, it is known as chromosomal mosaicism .
HOPE THIS helps
Explanation:
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
[tex]\Large{\textbf{Mitosis:}}[/tex]
The cells undergo mitotic division to increase the number of cells to replace the worn out cells and for growth.In Mitosis, there are 4 stages, they are, Prophase, Metaphase, Anaphase and Telophase.In mitosis, cell divide once to form 2 daughter cells.In mitosis 2 daughter cells are produced.No, Chromosomal Number remains the same in mitosis i.e. 46.The final result of mitosis is two identical cells which are called daughter cells[tex]\Large{\textbf{Meiosis:}[/tex]
In meiosis, cells divide to produce gametes(i.e. sex cells) for the sexual reproduction.Meiosis occurs in 2 division i.e. Meiosis 1 and Meiosis 2(It is just Mitosis). The stages that are involved in these 2 division are 8.The stages of Meiosis 1 are,
(a) Prophase (which is sub-divided into 5 more stages which are Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis)
(b) Metaphase,
(c) Anaphase,
(d) Telophase.
The Stages of Meiosis 2 are, Prophase, Metaphase, Telophase and Anaphase which are same as mitosis.
3. In meiosis, Cell divides twice.
4. In meiosis, 4 daughter cells are produced.
5. Yes, the chromosomal number in mitosis is reduced to half than normal i.e. 23
6. In meiosis, the final result is 4 haploid cells. If meiosis occurs in male then these haploid cells will be called sperms, if it occurs in female then they are called Ova(egg).
_____________________________________Just to give you some insight knowledge of Meiosis Im adding some extra points
[tex]\Huge\textbf{Meiosis:}[/tex]
Meiosis is a special type of cell division, which occurs only in the germ cells during the process of development and maturation to form gametes. It consists of two successive cell divisions,
Meiosis 1 : First meiotic division, that reduces the NUMBER of chromosomes i.e. the parent cell is diploid(46 Chromosomes) and the daughter cells are haploid(23 Chromosome). It also causes genetic variation in the haploid by cross linkage.
Meiosis 2 : Second meiotic division (Meiosis II) starts with two haploid parent cells and ends with four haploid daughter cells. Meiosis 2 like Meiosis 1, does not reduce the NUMBER OF CHROMOSOME that means the forming 4 daughter cells are haploid and their number of chromosome remains the same as the parent. BUT Haploid cells that go into the meiosis 2 have MORE AMOUNT OF CHROMOSOME THAN USUAL, thus MEIOSIS 2 REDUCES the amount of chromosome rather than the number of chromosome.
The DNA of the primitive germs cells is replicated prior to the meiosis 1 only and there is no replication of DNA before Meiosis 2. The four final cells reulting from the two meiotic divisions are not only haploid(i.e. containing 23 chromosome) but they are also containing 1n amount of DNA so that when the gametes fuse together forming a zygote, both the amount and number of chromosome and DNA remains SAME.
_____________________________________
[tex]\Large\text{Why is Meiosis Important?}[/tex]
Meiosis is essential for the sexual reproduction of eukaryotic organisms because it enables genetic diversity through recombination, and the repair of genetic defects.
It contributes in genetic reassorment which ensures the genetic diversity in the offsprings. The genetic reassortment takes place by following two mechanisms:
During the prophase of meiosis 1, crossing over of genetic material between the homologous maternal and paternal chromosomes takes place which causes exchange of DNA fragments between the chromosome resulting is genetic diversity. During the anaphase of the first meiotic division, there is random distribution of maternal and paternal homologous chromosomes among the daughter cells which are produced as a result of meiotic division._____________________________________Best Regards,'Borz'
(NO FILES)Organisms living in a bog environment must be able to tolerate nitrogen-poor acidic conditions. Bog plants such as the Venus flytrap and Sundew are able to obtain
their nitrogen by attacking and consuming insects. These plants produce chemicals that break down the insects into usable compounds. These chemicals present in the bog plants that break down the insects mentioned in the reading passage are most likely...
Question 5 options:
hormones
lipids
enzymes
carbohydrates
Answer:
b
Explanation:
The chemicals present in the bog plants that break down the insects mentioned in the reading passage are most likely enzymes.
ENZYMES:
Enzymes are substances that act as biological catalyst and regulate biochemical reactions in living organisms. Some enzymes are digestive in function i.e. they breakdown certain specific substances. According to this question, bog plants such as the Venus flytrap and Sundew are able to obtain their nitrogen by attacking and consuming insects. These plants produce chemicals that break down the insects into usable compounds. The substances/chemicals produced by the plants that breakdown the insects into usable compounds are most likely to be enzymes.Learn more at: https://brainly.com/question/15223109?referrer=searchResults
Explain how the Periodic Table of Elements is organized. What are the patterns? Trends?
(take your time)
Answer:
The periodic table of elements arranges all of the known chemical elements using this method. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order is usually according with the increasment (Is this a word?) of the atomic mass.
Explanation:
Have a good day :)
What is the best way for the park to resolve this problem?
prevent public access to the park
teach visitors to recycle
relocate the bears to a different area
allow the bears to eat the trash
What is the best way for the park to resolve this problem?
A. Prevent public access to the park
B. Teach visitors to recycle
C. Relocate the bears to a different area
D. Allow the bears to eat the trash
Answer: B. Teach visitors to recycle
I believe this answer is correct, Hope I helped!
A bacterium is made of _____ cells.
Answer:
prokaryotic cells
Explanation:
2. Which of the following is NOT a mutagen?
radiation
cosmetic products
carcinogens
organic food
Answer:
Organic Food
Explanation:
Brainlest please!!
Is a humans blood harmful?
well if you get to drink there if it would hurt you debido a que no sabes si esta enferma o no y aun asi te dañaria
What are some disadvantages of being a transgender women
Answer:
Transphobia is a big one of course, but if she's family oriented, not being able to have a pregnancy and children of her own are a huge hit to the self esteem. I've also heard that the scarring from surgeries and dysphoria can make it unbearable at some points.
Explanation:
I have several trans friends, so it's always nice to spread information about these things when I can :)
which organism would you expect to find the leas number of in this ecosystem
Answer:
Receta de cocina. Lavadora a máquina.
Mezclador. Refrigerador de microondas. Ordenador
Televisión. Tableta. Célula. Impresora.
Answer:
The hawk.
Explanation:
Because of how many calories are available from grass (10,000) and the way the calorie count keeps going down as it proceeds to each animal, the hawks have the lowest population.
3. A mutation is any
change in the DNA sequence that leads to a disadvantageous outcome.
• change in the DNA sequence.
• change in the DNA sequence that leads to an advantageous outcome.
• change in the amino acid sequence.
A mutation can be defined as any change in the DNA sequence that leads to a disadvantageous outcome.
What is mutation?A mutation is a any change that occurs in the sequence of DNA of a genome.
Mutation can be of different types depending on the outcome and they are as follows:
Deletion mutationInsertion mutationDuplication mutationMutation in living organisms is mostly disadvantageous.
Therefore, mutation can be defined as as any change in the DNA sequence that leads to a disadvantageous outcome.
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What are eroded materials that drop out first as a river slows down?
Answer:
Sediment in rivers gets deposited as the river slows down. Larger, heavier particles like pebbles and sand are deposited first, whilst the lighter silt and clay only settle if the water is almost still.
describe a situation in which secondary succession has occurred.
Answer:
Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession.
DNA replicates by breaking the bonds between its two strands, after which each strand?
A.grows to double length.
B.synthesizes a new strand
C.takes a spiral appearance
D.winds back upon itself
Answer:
i think its B
Explanation:
good luck and may the Lord bless you