Stronger stimuli (the slap) cause more neurons to fire and more neurons to fire more frequently than weaker stimuli (the tap).
Your nervous system is divided into two parts: the central nervous system (the brain and spinal cord) and the peripheral nervous system (the sensory and motor nerves). The names help to visualize it: the brain and spinal cord serve as hubs, while sensory and motor nerves extend out to provide access to all areas of the body. Simply put, sensory nerves transmit information about our surroundings to the brain via the spinal cord. The brain relays information to the motor nerves, which assist us in performing actions. It's like having a massive inbox and outbox for everything.
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when we process new stimuli based on our past experiences, we are using ______processing.
Bottom-up processing is used when we interpret new stimuli in light of our prior knowledge, thus the correct answer is bottom-up processing.
According to the principle of "bottom-up processing," perceptions start with an external input and progress upward until an internal image of the thing is formed. This procedure suggests that we only assemble the sensory elements that comprise our perceptual experience using information from our senses.
To perceive the world, we must convert ambient energy into cerebral messages, a process known as sensation. In the subsequent phase of the process, known as perception, our brains interpret these sensory facts.
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Without autonomic nervous system input resting heart rate would be approximately?Answer choices:a. 70−80 beats/min b. 50−60 beats/minc. 100−120 beats/min d. 200−220 beats/min
Answer:
10000/76 x 76 = 100089
Explanation:
bnnygghh
How many molecules of carbon dioxide are in the balanced equation?
H2O + CO2 ---------> C6H12O6 + O2
Answer:
Six I think
Explanation:
Answer:
In the balanced equation:
H2O + CO2 -> C6H12O6 + O2
there are 6 molecules of carbon dioxide (CO2).
A substance that cannot be broken into a simpler substance is called:_________
A substance that cannot be broken into a simpler substance is called an element.
A basic component of matter, an element is made up of atoms with the same number of protons in their nuclei. Chemically, elements cannot be reduced to simpler substances while retaining their distinct chemical and physical properties. The periodic table lists the 118 known elements in accordance with their atomic number, electron configuration, and chemical characteristics. The element combine in different ratios to form compounds or molecules. The element is thus entity that is most simplest forming the basis chemistry. Molecules contain same element whereas the compound has the different elements combined together.
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when a hair cell stereocilia bend away from the kinocilium,
voltage-gated calcium channels open when the membrane potential of the hair cell increases. it does not release neurotransmitters. it releases neurotransmitters. it generates an action potential to communicate with the auditory nerve.
If a hair cell bends toward the kinocilium it releases neurotransmitters, thus the correct option is B.
The hair cells' cilia bend in response to mechanical stimulation. Trap doors in the next cilium are connected by fine, thread-like tip linkages. The VIIIth cranial nerve experiences neural impulses as a result of the tip link being stretched as a result of the hair cells being bent. The vestibular system's hair cells differ significantly from those in the auditory system in that they only contain one highest cilium, known as the kinocilium. The cell depolarizes when the stereocilia are bent in the direction of the kinocilium, increasing afferent activity via neurotransmitter .The cell becomes hyperpolarized when the stereocilia are bent away from the kinocilium, which lowers afferent activity via neurotransmitters.
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The Complete question is :
If a hair cell bends toward the kinocilium...
A. It generates action potentials
B. It releases neurotransmitters
C. Both A and B
D. Neither A nor B
the accompanying figure is a pedigree of a fairly common human hereditary trait; the boxes represent males and the circles represent females. filled in symbols indicate the abnormal phenotype. given that one gene pair is involved, what is the inheritance pattern of the trait?
Give the genotype of II1 and III2. If more than one genotypic possibility exists, present all possible alternatives.
The figure shows the autosomal recessive inheritance pattern of traits. The possible genotype of II1 is "Aa", and the genotype of III2 can be either "Aa" or "AA".
Autosomal recessive inheritance is a type of genetic inheritance pattern where a trait or disorder is only expressed when an individual has inherited two copies of the same recessive allele from their parents. This means that an affected individual's parents must both be carriers of the recessive allele. Carriers have only one copy of the recessive allele and do not show any symptoms of the disorder. Autosomal recessive disorders affect both males and females equally.
In Autosomal recessive inheritance, “a” is the mutated and “A” is the non-mutated allele of the gene. An individual who receives mutated alleles from both parents (aa) would be affected by the disease. The person with genotypes “AA” and “Aa” does not show phenotypes of disease.
As the offspring are affected, genotype II1 should contain a recessive allele; yet, it cannot have two recessives since it is unaffected. As a result, the only genotype for II1 that is possible is one in which one is the dominant allele and the other is the recessive allele (Aa). Since III2 is unaffected by the condition, it would not contain two recessive alleles. As a result, "Aa" or "AA" are the genotypes that III2 might have.
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The correct question is given as:
The accompanying figure is a pedigree of a fairly common human hereditary trait; the boxes represent males and the circles represent females. Filled-in symbols indicate the abnormal phenotype.
Given that one gene pair is involved:
a) what is the inheritance pattern of the trait?
b) Give the genotype of II1 and III2. If more than one genotypic possibility exists, present all possible alternatives.
what is the proteome? what is a method is used to determine the proteome of an organism? what type of information can we gain from it? what are some potential applications of determining the proteome of an organism?
The proteome refers to the complete set of proteins expressed by an organism, tissue, or cell at a specific time. It includes all the proteins encoded by an organism's genome as well as any modifications and interactions that occur after translation.
One method used to determine the proteome of an organism is mass spectrometry, which involves ionizing and measuring the mass-to-charge ratio of proteins to identify them. This method can be coupled with liquid chromatography to separate complex protein mixtures prior to analysis.
By determining the proteome of an organism, researchers can gain insight into the biological processes and functions that are active at a given time. This information can be used to identify potential drug targets or biomarkers of disease, as well as to understand the mechanisms underlying normal and pathological cellular processes.
Applications of proteomics include drug discovery, disease diagnosis and prognosis, and personalized medicine. For example, identifying the proteome of cancer cells can lead to the development of targeted therapies that selectively kill cancer cells while sparing healthy cells.
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in the sense of alternation of generations, how many generations are included in a mature pine seed?
The three generations or tissue that make up the seed include the embryo itself, the develop a new that will supply nourishment, and the seed coat, which comes from sporophyte tissue.
Are sporophytes vascular organisms?Plants that produce spores are alluded to as sporophytes. But it's crucial to remember that spores are a product of all plants. Sporophytes-bearing plants are divided into vascular and non-vascular plants, and these two groups are further subdivided into several botanical phyla.
What three components make up a sporophyte?Foot, seta, and capsule are the three distinct elements of the sporophyte. After meiosis, spores develop inside the capsule.
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due to their shape, muscle cells are also called muscle ___
Muscle fibers are another name for muscle cells because of their form.
What are called cells?There are countless billions of cells in the human body. They not only take in nutrients from food and turn them into energy, but they also provide the body structure and carry out certain functions. A cell is made up of cytoplasm and is surrounded on all sides by a cell membrane. All living things are made up of cells, which are the smallest structural units of living matter and are typically microscopic in size. The majority of cells have one or more nuclei as well as other organelles that perform a range of functions.
What is the importance of cell?All living things—from bacteria to people—rely on cells for their structure and activity. They are regarded by scientists as the tiniest form of life. Cells contain the biological machinery which produces the proteins, chemicals, or signals necessary for all body functions. The presence or cells is one of the characteristics we use to assess whether an item is alive or not. Therefore, all the things we consider to be "living things," from the smallest to the largest animals and plants, are made of cells.
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the thin space between the parietal and visceral layers of the serous pericardium is the ______ cavity.
The thin space between the parietal and visceral layers of the serous pericardium is the pericardial cavity.
There are two layers in the pericardium: the fibrous layer and the serous layer. The fibrous pericardium is a sac with a conical form. The roots of the major vessels at the base of the heart are united with its apex. Its broad base rests on top of the diaphragm's core fibrous region, which it is bonded to. The sternum and the front portion of the fibrous pericardium are joined by weak sterno-pericardial ligaments. The fibrous pericardium (parietal layer) is lined by a layer of serosa called the serous pericardium, which is mirrored around the roots of the main veins to cover the whole surface of the heart (visceral layer). A possible gap that might contain a tiny amount of fluid exists between the parietal and visceral layers. The epicardium is the portion of the visceral layer that covers the heart but leaves the major vessels uncovered.
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the onion plant began as a single cell. if the original cell had 24 chromosomes, how many chromosomes would be found in each of the cells that you observed (cells in each step of cell cycle). how do you know?
Each of the cells has the same number of chromosomes as the parental cell.
A cell divides during mitosis to create two daughter cells with the same amount of chromosomes as the parent cell. A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic process. The cell's contents are typically evenly divided into two new cells with identical genomes after mitosis.
While germinal cells divide through meiosis, somatic onion cells do so through mitosis. In the process of cell division known as mitosis, daughter cells keep the original set of chromosomes (i.e., they are genetically identical to the parental cell).
In conclusion, each of the cells has the same amount of chromosomes as the familial cell.
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Where does catabolism primarily occur?
Although catabolism happens across the entire cell in aerobic cells, the mitochondria are where it is concentrated. This is so because the fundamental catabolic mechanism in aerobic cells, the Krebs cycle.
Catabolism takes place where?When this occurs, glucose is produced by the kidneys and liver from non-carbohydrate sources. When you digest food, your body breaks down the molecules to use them as fuel, a process known as catabolism. Smaller, simpler molecules are formed in the body from larger, more complex ones. Catabolism is demonstrated by glycolysis.
Are the mitochondria involved in catabolism?The TCA cycle intermediates (essential in bioenergetics), amino acids, nucleotides, glutathione, and lipids are among the macromolecules that receive carbon and nitrogen from glutamine, the most abundant amino acid, during its degradation. This process frequently begins in the mitochondria.
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which word means that a cell has two copies of each chromosome?
The term for a cell having two copies of each chromosome is diploid.
In diploid cells, one copy of each chromosome is inherited from each parent during sexual reproduction, resulting in a full complement of paired chromosomes. Most somatic (non-reproductive) cells in the human body are diploid, with 46 chromosomes in total (23 pairs).
In diploid cells, one copy of each chromosome is inherited from each parent during sexual reproduction, resulting in a full complement of paired chromosomes. This is because diploid cells undergo sexual reproduction, which involves the fusion of two haploid cells, each of which contains only one copy of each chromosome. When the two haploid cells combine, their chromosomes pair up to form a diploid set.
Most of the cells in the human body, with the exception of reproductive cells, are diploid. This means that they have a full complement of 46 chromosomes, arranged in 23 pairs. The diploid nature of our cells allows for genetic diversity and variability, as the genetic material inherited from both parents can recombine in unique ways during cell division.
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The ribosome ______ subunit has _______ binding sites for tRNA molecules. a. large; two. b. small; two. c. large; three. d. small; three. e. large; four.
The ribosome large sub unit has three binding sites for tRNA molecules.
The correct answer is option C.
A ribosome binding point, or ribosomal list point( RBS), is a sequence of nucleotides upstream of the launch codon of an mRNA paraphrase that's responsible for the reclamation of a ribosome during the inauguration of restatement. substantially, RBS refers to bacterial sequences, although internal ribosome entry spots( IRES) have been described in mRNAs of eukaryotic cells or contagions that infect eukaryotes. Ribosome reclamation in eukaryotes is generally intermediated by the 5' cap present on eukaryotic mRNAs.
The RBS in prokaryotes is a region upstream of the launch codon. This region of the mRNA has the agreement 5'- AGGAGG- 3', also called the Shine- Dalgarno( SD) sequence. The reciprocal sequence( CCUCCU), called theanti-Shine-Dalgarno( ASD) is contained in the 3 ’ end of the 16S region of the lower( 30S) ribosomal subunit. Upon encountering the Shine- Dalgarno sequence, the ASD of the ribosome base dyads with it, after which restatement is initiated.
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Which of these statements is true about the gametophyte tissue that surrounds the pine embryo?
A. It develops from the fusion of a microspore and a megaspore.
B. It functions as a diploid food reserve.
C. It functions as a triploid food reserve.
D. It functions as a haploid food reserve.
E. It is the remnant of the pollen tube.
Regarding the gametophyte tissue that encases the pine embryo, the following is true: (d) It acts as a haploid food reserve (This gametophyte tissue provides nutrients to the embryo.
One of the two alternate multicellular stages that develops during the life cycles of plants and algae is the gametophyte.
It develops from a single-chromosome haploid spore into a multicellular haploid organism. Gametophyte refers to the sexual stage of the life cycle of plants and algae. Gametophytes are the collective term for all tissues and organs produced by the haploid generation.
There are two distinct stages in the development of the gametophyte: the protonema and the gametophore. The first part of the moss to emerge from the spore is the protonema.
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Name the process by which the present diversity of plants and animals arose from the earliest and primitive organisms
The process is called evolution, specifically biological or organic evolution.
What is evolution?The process of change in the inherited features of populations of organisms over many generations is called evolution. Genetic diversity, natural selection, mutation, gene flow, and genetic drift are some of the forces that propel it. Biology's foundational idea of evolution is what gives life on Earth its diversity. It examines the relationships between species and the ways in which they have evolved to the various habitats in which they dwell. Charles Darwin and Alfred Russel Wallace initially put forth the theory of evolution in the 19th century, and it has since been backed by an abundance of empirical data from disciplines like genetics, palaeontology, and biogeography.
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What are the functions of an enzyme? Select all that apply.
to allow a reaction to be reversible
to lower the activation energy for the reaction
to alter the ΔG of a specific reaction
to alter the equilibrium of a specific reaction
to increase the rate of a specific reaction
To lower the activation energy for the reaction and To increase the rate of a specific reaction are the functions of an enzyme.
In the human body, enzymes supported in the accelerating chemical reactions. In the middle of countless other functions, they are critical for breathing, food digestion, and the health of the muscles and nerves. Many enzymes can be found inside each cell of the human body. Each cell's internal chemical operations can be supported by the enzymes.
Many biological processes, including development, blood clotting, disease treatment, respiration, digestion, reproduction, and many more, are aided by enzymes. The shape of an enzyme determines its function, and each enzyme performs a single task. Digestive enzymes that break down complex food particles into smaller ones, such as amylase, lipase, pepsin, and trypsin, aid in the chemical digestion of food.
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if 24% of a dna sample is made up of thymine, t, what percentage of the sample is made up of adenine, a?
There are two complementary sets of 4 potential nucleotides. If cytosin makes up 24% of the DNA, the complementary guanin must make up the remaining 76%. With 48% GC and 52% AT remaining, 26% are adenine and 26% are thymine.
Two purine residues and two pyrimidine residues make up the nitrogenous bases found in DNA molecules. Adenine and guanine are the pyrimidine bases found in DNA, while cytosine and thymine are purine bases. The chemistry of the bases shows how purine and pyrimidine bases differ from one another. Purine bases have two cyclic ring structures, whereas pyrimidine bases only have one, which results in a distinct chemical structure. The chemistry of nitrogenous bases is what really determines how DNA works. It enables a process known as complimentary base pairing.
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In general, who has the possibility of
sharing the most genetic traits? Parent/Child or Sibling/Sibling
In general, Parent/Child has the possibility of sharing the most genetic traits.
What are traits?As it relates to genetics, a trait is a unique quality about a person. Genes, environmental influences, or a combination of both can influence traits.
A parent and child share 50% of their genetic makeup on average. Contrarily, identical twins and fraternal siblings typically share 50% of their genetic material, however this percentage can vary.
A trait is a characteristic of the phenotype of the organism. To differentiate one trait from another under the more general word, phenotype, the trait is also known as the phenotypic trait in genetics.
Thus, Parent/child will share most genetic traits.
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96 The diagram shows how the volume of the left ventricle changes over a time period of 1.3 seconds.
A
Volume of
left ventricle
C
d
a
bi
ii
0
B
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6
Time in seconds
How many complete heart beats are shown in the diagram?
Use the graph to calculate how long one heart beat takes. Show your working.
Use your answer to bi to calculate the heart rate. Show your working.
96 The diagram shows how the volume of the left ventricle changes over a time period of 1.3 seconds.
A
Volume of
left ventricle
C
d
a
bi
ii
0
B
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6
Time in seconds
How many complete heart beats are shown in the diagram?
Use the graph to calculate how long one heart beat takes. Show your working.
Use your answer to bi to calculate the heart rate. This is the answer
The human gut is home to about how many microorganisms?
Answer: Between 30 trillion and 400 trillion microorganisms
Explanation:
Simple goiter is most prevalent where the soil lacksA. iodine
B. exocrine
C. goiter
D. pancreas
Simple goiter is most prevalent where the soil lacks iodine. A simple goitre is a thyroid gland hypertrophy. It is not generally a tumour or cancer.
A simple goiter is an enlarged thyroid gland. It is usually not a tumor or cancer. Simple (diffuse) goiter: This type of goiter occurs when the entire thyroid gland becomes swollen and smooth.
Nodular goiter: This type of goiter occurs when solid or fluid-filled masses called nodules develop in the thyroid gland and form lumps. Only if a goitre is producing symptoms should it be treated. Treatment of an enlarged thyroid may include:
Thyroid hormone replacement, if hypothyroidism is the cause of the goiter. If the goiter is due to iodine deficiency, a small amount of Lugol's iodine or potassium iodine solution.
The most prevalent cause of goitre is a lack of iodine. Iodine is required by the body to produce thyroid hormones. When you don't get enough iodine in your diet, your thyroid gland expands and tries to take in as much iodine as possible so it can produce the right amount of thyroid hormone.
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which bone type is shaped like a cube with similar height, width, and length?
Short bones of the human body is a bone type shaped like a cube with similar height, width, and length.
Short bones are the bones of the body that are the same in length, width and height. They include carpal and tarsal bones. Carpal bones include the movement of the wrist joint and tarsal bones include the movement of the ankle joint. Short bones are those that provide stability and support. They are also involved in limited motion too. They are located in the hands and feet. It also includes patella. As the patella generally serves as an anchor point for ligaments and tendons, doctors generally classify it as a sesamoid bone. However, the patella is constant, although the development of the sesamoid bones varies from person to person.
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What are the main differences between domain bacteria and archaea?
Archaea and Bacteria are two types of microorganisms classified as prokaryotes. Archaea were previously classified as bacteria, but this is no longer the case because it has been shown that they have distinct biochemistry and evolutionary histories.
Archaea are single-celled organisms with particular features that distinguish them from the other two kingdoms of life, namely Eukaryota and Bacteria.
They utilise a variety of energy sources and exhibit a wide range of chemical reactions in metabolism. They are classified into nutritional classes based on their reactions and carbon and energy sources.
Bacteria are single-celled organisms that live in a variety of settings. The nucleoid of bacterial DNA is a twisted thread-like substance. They even have a cellular structure that performs a variety of cyclic tasks ranging from energy transfer to protein transport.
Bacterial cells are made up of two parts: an inner cell membrane and an exterior cell wall. Some bacteria, such as mycoplasmas, do not have a cell wall.
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1.true or false pleasure an example of an abstract concept
Answer:
True
Explanation:
Pleasure is an abstract concept as it refers to a subjective experience that cannot be directly observed or measured. It is a mental or emotional state that is related to feelings of happiness, satisfaction, or enjoyment and is highly individualized and dependent on individual experiences and perspectives.
the visceral layer of the serous pericardium is also called the ______.
-epicardium
-myocardium
-pericardium
-endocardium
The solution lies in the parietal layer. The middle layer of the three layers that make up the wall of the alimentary canal is known as the parietal layer.
The majority of the muscular movement that moves food down the digestive tract is carried out by this smooth muscle and connective tissue structure. The nerves and blood arteries that supply the digestive organs are also found in the parietal layer. Applications for the parietal layer include tissue regeneration and wound healing. drug administration. biomarker study. tissue engineering. cell and gene therapy. in vitro diagnostics. anti-microbial finishes. Immunoisolation. cell culture. printing on tissues and organs.
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what property of biological membranes describes the ability of individual molecules to move within the membrane?A) FluidityB) BilayerC) Phospholipids
Option A, The property of biological membranes that describes the ability of individual molecules to move within the membrane is fluidity.
Membrane fluidity refers to the viscosity of the lipid bilayer of a cell membrane and how easily molecules can move within it. The fluidity of the membrane depends on various factors, such as the length and saturation of the fatty acid chains in the phospholipids, temperature, and the presence of cholesterol. A more fluid membrane allows for greater movement of molecules, while a more rigid membrane restricts movement. This property of fluidity is important for many biological processes, such as the movement of proteins and other molecules within the membrane, signal transduction, and membrane fusion during cell division.
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What are the visible characteristics of transitional epithelium? Select all that apply.A. Cilia project from the apical surface into the lumen B. Cell is more rounded at the basal surface and flattened at the apical surface. C. Multiple layers of cells. D. Rounded apical surfaces that resemble a tombstone shape. E. Neighbors a hollow cavity called the lumen.
In a relaxed condition, the urothelium has five to seven cell layers; in a dilated bladder, it has two or three cell layers. The epithelium's functional alteration does not harm it, giving rise to the term "transitional epithelium." Thus, option C, D, E is correct.
What are the features of transitional epithelium?Cellular projections, like intermediate filaments that protrude from the cellular membrane, connect the transitional epithelium's surface layer to the basal layer.
The cells of the transitional epithelium are rounded and oblong in form. However, as the tissue is stretched, these cells become flimsy and flattened. Gap junctions: These structures link the cells of the transitional epithelium together.
Therefore, -Neighbors, a hollow cavity called the lumen. Multiple layers of cells, -Rounded apical surfaces that resemble a tombstone shape.
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true or false? a chromosome and chromatid are the same thing.
chromosome and chromatid are the not same thing its false. A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division. The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere.
Chromatid Replication of cells is crucial for growth and for replacing damaged cells that cannot be repaired. The cells that are present when you acquire a cut on your skin and the cut heals are a good illustration of this. The old cells' exact replicas are present in the new cells. Your chromosomes, which contain the genetic material that determines who you are, must be replicated and sent to each of the new cells as part of cell replication. These chromosome copies, called chromatids, are connected by a unique structure that permits their meticulous division into new daughter cells while preserving the proper amount of chromosomes in each cell.
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water and minerals are transported from the roots to the rest of the plant through the phloem. true/false
Answer: False
Water and minerals are transported by the xylem.
Food is transported from the leaves to the rest of the plant by the phloem.
