Answer:
The peripheral nervous system (PNS) is one of the two components of the nervous system, the other part is the central nervous system (CNS). The PNS consists of the nerves and ganglia outside the brain and spinal cord.[1] The main function of the PNS is to connect the CNS to the limbs and organs, essentially serving as a relay between the brain and spinal cord and the rest of the body.[2] Unlike the CNS, the PNS is not protected by the vertebral column and skull, or by the blood–brain barrier, which leaves it exposed to toxins and mechanical injuries. The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system. In the somatic nervous system, the cranial nerves are part of the PNS with the exception of the optic nerve(cranial nerve II), along with the retina. The second cranial nerve is not a true peripheral nerve but a tract of the diencephalon.[3]Cranial nerve ganglia originated in the CNS. However, the remaining ten cranial nerve axons extend beyond the brain and are therefore considered part of the PNS.[4] The autonomic nervous system is an involuntary control of smooth muscle and glands. The connection between CNS and organs allows the system to be in two different functional states: sympathetic and parasympathetic
Explanation:
During experiment yeast fermentation ，how is the anerobic condition maintained to ensure that the fermentation process is completed？
Answer:
By covering the solution.
Explanation:
The anaerobic condition is maintained to ensure that the fermentation process is completed by covering the solution so that no oxygen enters the solution. Anaerobic conditions are necessary for the fermentation process because the anaerobic conditions allow the production of lactic acid, ethanol and carbondioxide gas from pyruvate. Without anaerobic condition, the fermentation process does not occur so that's why we can say that anaerobic conditions should be maintained for the fermentation process.
Why is my goldfish floating on top of the water and not swimming. (My mom took it away from me and she won't tell me)
Answer: your goldfish is in fish heaven now
Answer:
It’s sleeping
Explanation:
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'
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.
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
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.
To learn more about genetic drift, refer to the link:
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Observe the dandelions shown here. What plant parts or structures can you identify? What differences can you observe between a dandelion leaf and flower?
Answer: External plant structures such as leaves, stems, roots, flowers, fruits, and seeds are known as plant organs. Each organ is an organized group of tissues that works together to perform a specific function. These structures can be divided into two groups: sexual reproductive and vegetative.
Many look-alike plants have similar leaves, but dandelion leaves are hairless. They generally have toothed edges that gave the plant its French name, “dent de lion.” Leaves and hollow flower stems grow directly from the rootstock. There is only one flower per stem, verses other branching look-alike plants.
The differences which one can observe between a dandelion leaf and flower are:
Dandelion leaves are hairless, flowers are notThe dandelion leaf has one flower in each stem, flowers do notThe plant parts and structures which are similar between a dandelion and flowers are:
LeavesStemsRoots, etcAccording to the given question, we can see that there is a need to show the similarities and differences between dandelion leafs and flower from the given image in the complete text.
As a result of this, it is important to note that dandelion leaves, although similar to the flower in the image, have hairless leaves and the edges have tooth like structures, which are not found in the flower.
Read more here:
https://brainly.com/question/4177867
2. Which of the following is NOT a mutagen?
radiation
cosmetic products
carcinogens
organic food
Answer:
Organic Food
Explanation:
Brainlest please!!
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!!
What happens during translation? *
A.) The cell uses information from mRNA to produce proteins.
B.) tRNA is made from mRNA.
C.) mRNA is made from DNA.
Answer:
What happens during translation? tRNA is made from mRNA.
Explanation:
Option B) is your answer. Have a great day.
Would the surface temperature of white dwarf stars be higher or lower than red supergiants?
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.
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!
True or false plants help produce carbon compounds through photosynthesis
What percentage of the offspring are green , if you crossed a heterozygous pea plant with another heterozygous
pea plant?
50%
O 75%
O 25%
O 100%
Answer:100 percent
Explanation: This is because if both P plants are heterozygous both of them are caring an equal amount of genes hence they have and are 100% P plant heterozygous
what explains the diffrence in traits between all living organisms remember it begins with v
Answer:
Variation explains the difference in traits between all living organisms.
Explanation:
Without variation it would be pretty impossible to notice any "differences" in traits, especially between living organisms.
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
what cell type has no membrane bound organelles has a single unbound chromosome and is very smal?
Answer:
prokaryotic cell
Explanation:
Please I need major help! Help me please?!?
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."
Hope this helps! Lmk if it does :D
How would a disease that infects and kills Jerboa most directly affect the given
food web above?
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
What type of energy transformation takes place during cellular respiration?
Answer: The energy transformation that takes place during cellular respiration is the conversion of glucose (chemical energy) to another form of compound with high energy bonds (adenosine triphosphate) that can be readily used by the body. All energy on Earth comes from the sun.
Explanation:
4. Raquel, Richard, Hanne, and Lenny equally
split the price of one season ticket so they
can take turns attending baseball games.
If a season ticket includes 68 games, how
many games should Raquel expect to
attend this season?
Answer:
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h
Explanation:
hhhh4uu4u4j4j4j4u4u4u4u4u4u4u
A bacterium is made of _____ cells.
Answer:
prokaryotic cells
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
Alzheimer's disease is not a progressive deterioration of the brain cells.
Please select the best answer from the choices provided
ОТ
O
Mark this and return
Save and Exit
Next
Submit
Alzheimer's disease is a progressive deterioration of the brain cells :
i.e. statement in question is FalseAlzheimer's disease is a type of dementia that begins with a gradual loss of one's memory which degenerates into the inability of a patient suffering from the disease and some of these inabilities includes;
Inability to hold on to a conversation and Inability to respond properly to activities within their environment. Effect of Alzheimer's diseaseAlzheimer's disease affects the parts of the human brain responsible for proper speech/language and memory.
Hence we can conclude that Alzheimer's disease is a progressive deterioration of the brain cells : i.e. statement in question is False
Learn more about Alzheimer's disease : https://brainly.com/question/11686508
(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
Tiny pores present on the surface of leaves through which gaseous exchange occurs are called
Answer:
stomata IS THE CORRECT ANSWER
IF IT IS CORRECT FOLLOW ME
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.