the peripheral nervous system is a collection of neurons and supportive tissue running from the base of the brain down the center of the back. true or false

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Answer 1

The peripheral nervous system is a collection of neurons and supportive tissue running from the base of the brain down the center of the back, the given statement is false because the described structure is the central nervous system (CNS), which consists of the brain and spinal cord.

The peripheral nervous system (PNS) is different from the CNS.The PNS is a complex network of nerves that connects the CNS to the rest of the body, including muscles, organs, and skin. It is responsible for transmitting information between the CNS and the rest of the body, enabling voluntary and involuntary responses.

The PNS has two main divisions: the somatic nervous system, which controls voluntary movements and the transmission of sensory information, and the autonomic nervous system, which regulates involuntary processes such as digestion, heart rate, and respiration. In summary, the statement provided is false as it inaccurately describes the peripheral nervous system. The correct description for the structure running from the base of the brain down the center of the back is the central nervous system, while the peripheral nervous system connects the CNS to the rest of the body.

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Related Questions

In general, the greatest vulnerability to teratogens occurs during:____.
a. the last part of the fetal period of prenatal development.
b. the embryonic period of prenatal development.

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In general, the greatest vulnerability to teratogens occurs during the embryonic period of prenatal development.

A teratogen is something that, when exposed to a growing embryo or fetus, can result in birth defects or other abnormalities.Teratogens include certain pharmaceuticals, illicit substances, tobacco, chemicals, alcohol, certain illnesses, recreational drugs, and in rare situations, medical conditions including uncontrolled diabetes in pregnant women.Ten to fourteen days after conception, teratogens can start to damage the growing embryo. There are times when the developing organ systems exhibit greater sensitivity to teratogens during embryonic development.Teratogens can also have an impact on pregnancies and result in issues like premature labor, spontaneous abortions, or miscarriages. Physical agents, metabolic circumstances, infections, and finally, medications and chemicals, are the four categories into which teratogens are divided.

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Atp energizes other molecules in cells by transferring a(n) ________ to those molecules.

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ATP energizes other molecules in cells by transferring phosphate groups to those molecules.

An energy-demanding process can be coupled to ATP hydrolysis in a cell in one of two ways: either ATP is used to activate a reactant, or ATP is used to alter a reactant's form. Transferring a phosphate group to the reactant results in the phosphorylation of the product, which can be used to accomplish either goal.

Cells can use chemical energy known as ATP, or adenosine triphosphate. It is the molecule that gives your cells the power to accomplish things like contract your muscles as you walk down the street.

Therefore, ATP energizes other molecules in cells by transferring phosphate groups to those molecules.

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The plasma membrane is ____________ permeable and allows some, but not all, substances to pass through it.

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the plasma membrane is- semi permeable

How would an increase in the sympathetic nervous system increase stroke volume? decreased end diastolic volume increased end systolic volume increased contractility increased end diastolic volume

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The correct answer is (c) increased contractility which increases the stroke volume.

Stroke volume is the blood volume that is pumped by left ventricle of heart during each systolic contraction or the difference in end diastolic and end systolic volume. Sympathetic nerves arise in the intermediolateral nucleus of lateral grey column near the middle of spinal cord.

Increase in the sympathetic nervous system increases the myocardial contractility because sympathetic nerves innervate the myocardium which as a result increases the stroke volume and heart rate and ultimately a higher cardiac output is observed.

Therefore, with increase in sympathetic nervous system stronger contactility is observed which results in higher stroke volume.

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Identify the role of the organism in the community

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The role of an organism in the community will depend on its position on the food web (e.g., producer, primary consumer, secondary consumer, etc).

What is a trophic role?

A trophic role can be defined by the particular position that an organism has in the food web.

For example, plants are producers that generate biomass, whereas herbivores are primary consumers.

In conclusion, the role of an organism in the community will depend on its position on the food web.

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Which of the following is TRUE about bacteria?
Group of answer choices

Autotrophic bacteria are responsible for the recycling of nitrogen, phosphorus, and carbon.

All bacteria cause diseases.

Some bacteria help to process foods or control agricultural pests through chemicals or genetic engineering.

All bacteria are heterotrophs that require oxygen to survive.

Answers

It’s the first one, Atrophic bacteria are responsible for recycling nitrogen, phosphorus and carbon

The TRUE statement about bacteria is "Some bacteria help to process foods or control agricultural pests through chemicals or genetic engineering". The third option is correct.

One crucial fact about bacteria is that some of them favourably affect food processing and agricultural pest management. Bacteria perform many different functions on our planet.

In the food industry, these helpful bacteria are used to ferment different goods, such as yoghurt and cheese, boosting flavour and nutritional value.

Additionally, certain bacteria function as biopesticides, aiding farmers in pest management without the use of hazardous chemicals.

Additionally, genetic engineering is used to harness microorganisms to create useful materials like pharmaceuticals and enzymes, which help a variety of businesses.

This emphasises the important part that certain bacteria play in enhancing food production, sustainability, and human welfare.

Thus, the third option is correct.

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If an organism with the genotype aabb produces gametes, what proportion of the gametes would be bb?

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Assuming independent genes and normal meiotic events, the gametes of an individual with genotype aabb are ab, ab, ab, ab. There are no bb gametes. The answer is NONE.

What is a gamete?

A gamete is a haploid cell that results from the meiotic division of germ cells during gametogenesis.

These haploid cells have half the number of chromosomes of somatic and germ cells, and their destiny is to merge with another gamete to produce a new diploid cell.

During gamete formation, homologous chromosomes separate after crossing over, and finally, sister chromatids separate too, resulting in four haploid cells, each of them with a different allele combination.  

When genes are in different chromosomes or far from each other in the same chromosome, they express independent assortment during meiosis. These genes are independent.

Independent assortment means that during a meiotic event, alleles from two or more different genes distribute in gametes independently from each other.

Each gamete receives an allele of a gene that does not depend on nor influence the allele of another gene in the same gamete.

In the exposed example, the homozygous recessive genotype is composed of two diallelic genes ⇒ aabb

Genotype: aabbAllele combination ⇒ Gametes ⇒ ab, ab, ab, ab

Assuming independent genes, unless there is some sort of problem during meiosis, there are no gametes bb, because gametes result from the combination of both genes.

The answer is NONE. There are no gametes bb.

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animal which have no backbone name of there kingdom ???

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Invertebrates, they are a range across the animal kingdom including; insects, sea corals, scorpions. The most common are insects, but they aren’t restricted to a certain group of animals.

Answer: invertebrates

Explanation:

After fertilization, the newly formed zygote begins to divide into multiple cells through a process called __________.

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Mitosis is the process by which a newly formed zygote after fertilization begins to divide into multiple cells.

What is mitosis?Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.The major purpose of mitosis is for growth and to replace worn out cells.

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Which other body areas would if tested prove to have a high density of sweat glands?

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Soles of feet, palms, underarms, forehead will have a high density of sweat glands when tested.

Increased friction on bare feet is a fourth potential benefit of sweating on the soles. This is believed to have aided our ancestors in gaining a firmer footing when fleeing from predators or any other danger. All over the body, sweat glands are responsible for producing sweat.Your hypothalamus, a tiny part of your brain, signals to the eccrine sweat glands dispersed throughout your body that it is time to start cooling you down by creating sweat as soon as your body's internal temperature starts to rise. However, cooling off is more difficult than having your perspiration simply drip off of you.

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The best way to prevent ________ is to thoroughly cook eggs, chicken, and other foods to kill the bacterium.

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The best way to prevent food poisoning is to thoroughly cook eggs, chicken, and other foods to kill the microorganisms.

What is food poisoning?

Food poisoning is defined as the contamination of food by disease causing microorganisms which can affect the well being of an individual.

In order to prevent this from happening, the food should be:

Thoroughly preheated,

Thoroughly cooked and

And washed before eating.

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Glycolysis occurs in a series of 10 steps using 10 different enzymes. Place the following broad events that occur during glycolysis into their correct order.

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1. Hexokinase 2. Phosphoglucose Isomerase 3. Phosphofructokinase 4. Aldolase 5. Triosephosphate isomerase 6. Glyceraldehyde-3-phosphate Dehydrogenase 7. Phosphoglycerate Kinase 8. Phosphoglycerate Mutase 9. Enolase 10. Pyruvate Kinase

What is Glycolysis ?

A process in which glucose (sugar) is partially broken down by cells in enzyme reactions that do not need oxygen.

Glycolysis is one method that cells use to produce energy. When glycolysis is linked with other enzyme reactions that use oxygen, more complete breakdown of glucose is possible and more energy is produced.The main aim of glycolysis is to synthesize thousands of ATP molecules used for various cellular metabolism.

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Fungi differ from bacteria in that fungi Group of answer choices Have cell walls. Spoil food. Are cellular. Have a nucleus. Have DNA.

Answers

yes true because they differ from bacteria

If you, like mendel, grow plants in the lab, and cross/breed short (tt) pea plants with another (tt) short pea plants, the offspring will be:_________

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Cross/breed short (tt) pea plants with another (tt) short pea plants, the offspring will be also a short/dwarf pea plant(tt) due to the Monohybrid nature of the cross.

Monohybrid cross is responsible for the inheritance of one gene. It can be easily shown through a Punnett Square.

(Refer the picture attached for reference)

Thus the Genotype is "tt" and the Phenotype is "small".

"tt" is an example of pure gametes that are haploid. These gametes are always pure and do not possess homologous chromosomes. Instead, they possess one chromosome of each type, either recessive or dominant.

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What is the highest total blood cholesterol concentration (mg/dL) that falls within the desirable range

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Cholesterol levels below 200 mg/dl are considered "desirable blood cholesterol," 200 to 239 mg/dl are considered "borderline-high blood cholesterol," and 240 mg/dl and above are considered "high blood cholesterol."

There are two forms of cholesterol: low-density lipoprotein (LDL) and high-density lipoprotein. Cholesterol is a waxy, fatty molecule (HDL).The "bad" cholesterol LDL, or too much of it, can accumulate in blood arteries and form plaques, which are fatty deposits.Heart attacks and strokes are only two more issues that these plaques can cause.Low levels of both total and LDL cholesterol are ideal. However, having higher levels of HDL, or "good," cholesterol, may lower your chance of having a heart attack or stroke.Doctors can check your total cholesterol, HDL, and LDL levels.

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A human somatic cell is in g1 of the cell cycle. How many physical copies of the ldlr gene does this cell have?

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A human somatic cell is in g1 of the cell cycle. The cell will have two copies of the ldlr gene.

Humans are diploid, which means that each chromosome has two copies.Since a diploid organism is produced by the union of two gametes, each of which contains one set of chromosomes (N), diploid cells (all the cells in our body aside from our gametes) have 2N. It helps to think of chromosomes as bundles of genetic data when discussing chromosome number (ploidy). Because each sister chromatid has genetic material (alleles) inherited from just one parent, they make up one chromosome.A diploid organism has two copies of each gene during G1 of interphase. The cell is only developing and functioning normally in the body during the G1 phase.

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Destruction of the supra-optic nucleus of the hypothalamus would have which result?
A) loss of ADH secretionB) loss of GH secretionC) loss of melatonin secretionD) loss of emotional responseE) loss of loss of regulatory factor secretion

Answers

A )loss of ADH secretion.

Destruction of the supra-optic nucleus of the hypothalamus can cause loss of ADH secretion. Reason behind this is antidiuretic hormone are synthesized in hypothalamic supra optic nerves .Hence, destruction of supra optic nerve in the hypothalamus will alter the production and secretion of ADH . ADH is stored in posterior pituitary gland and is released into the circulation in response to extracellular fluid changes by the osmoreceptors in the brain.

Deficiency of ADH can cause or insensitivity of the kidney to ADH also known as nephrogenic diabetes insipidus. These patients, if untreated, have the predictable result of dehydration, hyperosmolality, hypovolemia, and eventual death in severe cases.

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Telomerase is needed in DNA replication to fully reproduce the Group of answer choices soma in the cells bodies. sanchi levels in cells necessary for continued replication. telomeres when cells divide. cross-linking collagen needed for cell survival.

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(c) Telomeres when cells divide.

What does the telomere do in the body?

A chromosome's end contains a stretch of repeating DNA sequences known as a telomere. Chromosome ends are shielded from fraying or tangling by telomeres. The telomeres get a little bit shorter every time a cell divides. They eventually get so short that the cell can no longer successfully divide, and the cell then perishes.

With age, telomere length decreases. The health and lifespan of an individual are impacted by the progressive shortening of telomeres, which causes senescence, apoptosis, or oncogenic transformation of somatic cells. Reduced survival and higher illness incidence have been linked to shorter telomeres.

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Cyclophosphamide and thiotepa are examples of:

Answers

Answer:

ALKYLATING AGENTS

Explanation:

Examples of alkylating agents include chlorambucil, cyclophosphamide, thiotepa, and busulfan.

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How are the hip bones in a frog different from the human pelvis?

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Answer:

A frog's pelvis(hip bones) can slide up and down its spine, which may help it jump. The vertebrae at the bottom end of the spine are fused into one bone called the urostyle much like our coccyx(tailbone) - the remains of their tadpole tail.

darwin spent five years collecting information while on a voyage aboard the ____________

Answers

HMS Beagle is the name of the ship

a short sequence of DNA is replicated using a mixture of dideoxynucleotide triphosphates, which lack a hydroxyl group at the 3' location. The new strands are separated from the old DNA

Answers

What is the process of dideoxy sequence?

Sanger sequencing mimics the natural process of DNA replication by using dummy nucleotides to stop replication whenever a specific nucleotide is encountered. Because this truncated replication happens repeatedly, nucleic acids of various lengths accumulate and can be used to determine the position of each nucleotide in the sequence

ddNTPs are included (dideoxynucleoted)

A representation of 16 nucleotides arranged in a single horizontal strand of DNA is shown. Horizontal cylinders represent the deoxyribose sugar molecule and vertical rectangles represent the nitrogenous base in each nucleotide. The deoxyribose sugar and nitrogenous base of a single DNA strand are shown in grey. Below the single strand are four DDNTPs and four individual nucleotides. Sugar molecules are black in the bottom four DDNTPs in the bottom four individual nucleotides. To represent the bases' chemical identities, the nitrogenous bases on the DDNTPs and the lower four nucleotides are colored differently: DDATP is green, DDCTP is orange, DDTTP is red, and DDGTP is blue. Thymine is blue, cytosine is orange, and adenine is green.

DNA sequence :

DNA sequencing is the process of determining the order of the nucleotides within a gene. The first DNA sequencing methods were time-consuming, but a major breakthrough came in 1975 with the development of the Sanger sequencing method. Sanger sequencing is named after the English biochemist Frederick Sanger, and it is also known as chain-termination sequencing or dideoxy sequence. The Sanger method was used to sequence the human genome some 25 years after its invention, and it remains an important method in laboratories around the world today, despite many technological advances and modifications.

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During glacial maxima, australia, new guinea, and tasmania were a single land mass called?

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During glacial maxima, Australia, new guinea, and Tasmania were a single land mass called Sahul.

The single Pleistocene continent known as Sahul united Australia with New Guinea and Tasmania. Rising sea levels gave rise to the distinct landmasses that we can now recognize, even though the sea level at the time was up to 150 meters (490 feet) lower than it is now.Australia, New Guinea, Tasmania, and Seram were all parts of the ancient continent Sahul.Since the Last Glacial Maximum, sea levels have risen. Around 18,000 years ago, Sahul began to be partially submerged. Sea levels kept rising until roughly 5000 BCE.After leaving Africa, early human migrations began in Sahul and Sunda. According to recent study, hundreds of individuals traveled in groups on bamboo rafts and eventually settled on Sahul.

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What adaptation do plants on the forest floor need to reproduce in a broadleaf forest?

Answers

They grow quickly and bloom early, attracting pollinators to help them reproduce before the canopy above blocks out much of the sunlight.

Which of the following factors affects how much kinetic energy an object has? A. Mass B. Height C. Time D. Distance

Answers

Answer:

the right basic answer is mass and velocity or mass and speed

therefore there's no other choice than "A"

Stomach acidity is in the range of ph 1 to 2. How might this inhibit the growth of ingested bacteria?

Answers

Stomach acidity is in the range of pH 1 to 2 because of the presence of hydrochloric acid (HCL) and pepsin.

Cells in the stomach are responsible for the secretion of HCL in the stomach lumen.For the clearance of ingested bacteria, a particular range of pH is required. HCl and pepsin present in the gastric lumen can kill the bacteria within 15 min if the pH of the lumen gets maintained below 3. If the pH of the lumen increased by 4, it can cause bacterial overgrowth and the establishment of infection.

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Where is the frog's heart compared to its lungs? How do the locations of these organs affect interactions between the frog's respiratory and circulatory systems?

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A frog's heart is situated in the chest, next to the lungs. The frog's heart is connected to a pair of sac-like organs called the lungs, which aid in breathing. Blood that is rich in oxygen is pumped from the lungs to the rest of the body by the heart.

What is anatomy?

Anatomy is a branch of biology that focuses on identifying and describing the physical characteristics of living creatures.

A frog's respiratory system has three alternative pathways for oxygen to enter the body: through the skin, the lungs, and an unique mouth lining.

The circulatory system is connected to each of these respiratory surfaces, allowing the blood to be oxygenated.

The heart of a frog is located near to the lungs in the chest. The lungs of the frog are a pair of sac-like organs that help with breathing and are connected to the heart. The heart pumps oxygen-rich blood from the lungs to the rest of the body.

Thus, this way, the locations of these organs affect interactions between the frog's respiratory and circulatory systems.

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On entering the lungs, the primary bronchi divide to form smaller bronchi called:_____.

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On entering the lungs, the primary bronchi divide to form smaller bronchi called lobar.

The secondary lobar bronchi or just lobar bronchi are the primary subdivision of the main (or number one) bronchi. Like the number one and tertiary bronchi, they're undertaking airways that are covered by way of cartilage. The left foremost bronchus offers rise to two secondary bronchi: the left upper lobe bronchus.

The right important bronchus subdivides into three lobar bronchi, even as the left important bronchus divides into two. The lobar bronchi (additionally referred to as secondary bronchi) divide into tertiary bronchi, each of which supplies air to a one-of-a-kind bronchopulmonary segment.

The segmental bronchi divide into many smaller bronchioles that divide into terminal bronchioles, after which into respiration bronchioles, which divide into 2 to 11 alveolar ducts.

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What are important functions of fiber in the body?

Answers

Answer:

Fiber helps to prevent constipation in the human digestive system.

Explanation:

According to nutritionists fiber is very important in digestion as it increases the amount of stool , hence prompting for deification which generally reduces the amount of time waste stays in the small intestines .

Another reason is that it gets in touch with the schist that has been rejected or is of no value to the system and binds it to make it compact waste hence it is easier to move along the small intestine and the colon .

Finally it facilitates movement and exercise of the bowel , by prompting regular movement .

Psl 250 when the ventricles are contracting, blood is flowing through which valves?

Answers

Pulmonary valve and Aortic valve

During systole, the aortic and pulmonic valves open to permit ejection into the aorta and pulmonary artery.

What happen when ventricles contract ?

When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery

Then it travels to the lungs. In the lungs, the blood receives oxygen then leaves through the pulmonary veins. It returns to the heart and enters the left atrium.

When the left ventricle contracts, it forces blood through the aortic semilunar valve and into the aorta. The aorta and its branches carries the blood to all the body's tissues.

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