Fragmentation occurs whenever a deeply ingrained shoot segregates from the leading Plant fragmentation is a very common type of vegetative reproduction.
There are various other mechanisms in plants. There are numerous other purely natural fragmentation techniques in plants. In fragmentation, reproduction occurs through the fragmentation of the parent organism into various fragments that can grow identical to their parents. It can be found in coral, sponges, and starfish. Fragmentation is an important network layer function. It is a technique in which gateways divide or break up larger packets into smaller ones known as fragments.
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Which drug is strongly act on central nervous system?
Drugs are known as stimulants work by causing the central nervous system to be excited. Cocaine, different amphetamines, and coffee are examples of psychic stimulants. These medications improve mental clarity while lowering sleepiness and fatigue.
Stimulants make the central nervous system more rapid. They function similarly to the hormone adrenaline, one of the body's naturally occurring stimulants. Cocaine, ecstasy, coffee, and numerous other substances also have similar effects. Drugs of abuse, regardless of the type, have an impact on the pleasure centers of the brain, which are the recipients of neurotransmitters like dopamine. Drugs alter both the type of messages delivered and their transmission rate as they reach the neurological system.
Thus, it may be said that stimulants like cocaine, various amphetamines, and coffee act by igniting the central nervous system.
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What is the role of environment in our genes?
The role of the environment in our genes is that Human development is shaped by how genes and the environment interact.
DNA is what makes up genes. Some genes serve as instructions for making proteins, which are molecules.
Research demonstrates that early experiences can determine how genes are turned on and off, and even whether some genes are expressed at all, despite the common misconception that genes are "set in stone."All organs, including the brain, are dependent on the amount and timing of gene activation for particular functions for healthy development. In many genes, various variants (genotypes), modify the outcomes (phenotype) in any event, when exposed to a similar environmental exposure.
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Which of these groups is the smallest level of classification?
• A. Order
• B. Class
• C. Family
• D. Phylum
Answer:
Family
Explanation:
Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species.
When developing his ideas about natural selection, Darwin focused most on
A. group behavior.
B. DNA
C. kin selection.
D. adaptations.
Darwin focused most on adaptations when developing his ideas about natural selection (Option D).
What are evolutionary adaptive features?Evolutionary adaptive features are different phenotypic traits in organisms that confer an advantage in reproduction and or survival for a particular environment in which these organisms live. Thus the process of natural selection selects them to form the next generation.
Therefore, with this data, we can see that evolutionary adaptive features are separated by natural selection in order to produce a new generation of individuals associated with these phenotypic traits.
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What is biological contamination?
Answer:
Biological contamination
Explanation:
The contamination of a building environment caused by bacteria, molds and their spores, pollen, viruses, and other biological materials (e.g., animal and human dander insect and arachnid excreta). It is often linked to poorly designed and maintained HVAC systems.
What is formed from glucose during anaerobic cell respiration?
Explanation:
Glycolysis breaks down glucose (6-C) into two molecules of pyruvate (3C), and also produces: Hydrogen carriers (NADH) from an oxidised precursor (NAD+) A small yield of ATP (net gain of 2 molecules)
Why is mitosis important 3 reasons?
Expansion and development. Mitosis is the process by which an embryo develops after a gamete from meiosis has united with another gamete to form an embryo. Cell division is essential for organism development, tissue repair, healing and regeneration, and reproduction. Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes are not altered.
Multicellular creatures depend on mitosis to reproduction of new cells for growth and to replace damaged or worn-out cells, such as skin cells. Mitosis serves as Mitosis the main asexual reproductive mechanism for a large number of single-celled organisms.
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What are three effects of cardiovascular endurance training?
VO2 max is increased, plasma volume expansion is stimulated, and body fat mass is decreased through cardiovascular endurance training.
The ability to undertake dynamic, large-muscle exercises for a lengthy amount of time at a moderate to high intensity is known as cardiovascular endurance (typically over 20 to 30 minutes). It gauges how well your body can expel carbon dioxide and deliver oxygen-rich blood to your organs. As a result, cardiovascular endurance serves as a reliable predictor of the health of the heart, lungs, and muscles. You can exercise and work out intensely longer if your cardiovascular endurance is higher than that of someone with lower endurance.
Measurements of cardiovascular endurance look at how much oxygen your body consumes during vigorous exercise. METs and VO2 Max are two metrics that are used to gauge the condition of your cardiorespiratory system.
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2 The symbols below show weather data for a place. Write what each symbol
stands for. Predict the kind of weather a place near the H will have.
H
I in the graphic organizer below to show how meteorologists get data tc
edict the weather. ASAP
A blue "H" on a weather signifies a region of high pressure. Fair weather is typically connected with a high for meteorologists.
What are Symbols for Weather Forecasting?High pressure zones typically provide quiet, sunny weather. Storms can occur in low-pressure areas. On weather maps, air pressure is shown as a red "L" at each centre of low pressure and a blue "H" at each centre of high pressure.Low Pressure:A region of low pressure that circulates in the southern hemisphere clockwise and the northern hemisphere counterclockwise. Likewise described as a cyclone.
High Pressure:A region of higher pressure that has a circulation that moves counterclockwise in the southern hemisphere and clockwise in the northern hemisphere. Likewise known as an anticyclone.
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What are matching genes called?
the matching genes are called as homozygous
Humans, in general, have the same genes. A number of genes differ. These are in charge of our physical characteristics and health. Each variation is referred to as an allele. For each gene, you inherit two alleles. One is inherited from your biological mother and one from your biological father. If the genotypes are similar, users are homozygous for just that specific gene. having the same allele at the same locus on both members of a homologous pair of chromosomes A homozygous genotype is one that has two identical alleles of a gene for a specific trait. A person can be homozygous dominant (AA) or homozygous recessive (AR).
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What are the 3 major checkpoints and what does each checkpoint do?
Cell-cycle checkpoints prevent the transmission of genetic errors to daughter cells. There exist three major cell-cycle checkpoints; the G1/S checkpoint, the G2/M checkpoint, and the spindle assembly checkpoint (SAC).
The vast amount of DNA contained within the chromosomes must be precisely duplicated before being precisely separated into two daughter cells that are genetically identical. This is the most fundamental task of the cell cycle.
Walther Flemming was the first to depict the various steps in the cell cycle that lead to cell division in 1882 after creating techniques to stain cells that revealed subcellular structures. To divide the genetic material in a cell, spindle fibers create a protein structure. When a parental cell undergoes mitosis or meiosis, the spindle is required to divide the chromosomes into two daughter cells in an equal number. The spindle fibers that form the mitotic spindle are known as such during mitosis.
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Which part of the cell makes ATP needed for cellular energy?
Mitochondria is a cell organelle that makes ATP needed for cellular energy.
The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP). Small chromosomes found in mitochondria are found there. In most cases, mitochondria and consequently mitochondrial DNA are exclusively passed down from the mother.
Although their cross-section is typically between 0.75 and 3 m2, mitochondria differ greatly in size and structure. They are barely noticeable unless they are deliberately discoloured. Mitochondria provide a variety of functions in addition to producing cellular energy, including signaling, cellular differentiation, and cell death, as well as regulating the cell cycle and cell proliferation. These cellular processes are in turn temporally coordinated with mitochondrial biogenesis.
Hence, mitochondria is considered as powerhouse of cell.
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Data indicate that the present rate of freshwater consumption in most developed countries is ________.
A. Sustainable for the foreseeable future
B. Irrelevant, as water is not currently limiting
C. Only a problem in areas not on the coast
D. Unsustainable
E. Increasing groundwater storage and decreasing surface water storage
Answer: Unsustainable
Explanation: Hope this was helpful
What is a gene be specific the instructions in a gene codes for what kind of molecule?
Answer:
Protein
Explanation:
A gene is a small section of DNA? that contains the instructions for a specific molecule, usually a protein?. The purpose of genes? is to store information. Each gene contains the information required to build specific proteins needed in an organism. The human genome? contains 20,687 protein-coding genes.
How are differentiated cells different?
It is the procedure by which one type of cell transforms into another.Cell differentiation can result in changes to a cell's size, shape, membrane potential, metabolic processes, and responsiveness.
What distinguishes differentiated cells from one another?Gene expression alterations lead to cell differentiation.
This happens when various environmental signaling molecules activate or repress certain transcriptional factors that are required to express particular genes in the DNA.
What does the differentiation of cells mean?Pay attention to how it sounds.the process through which newly formed, immature (unspecialized) cells develop their own unique properties and mature into their specialized form and function.
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Which type of biomass energy can be produced from garbage heaps?
The following are types of biomass energy that are produced from garbage heaps; Ethanol, Biodiesel, Methane, Gasoline.
What is Biomass Energy?Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, above. The energy from these organisms can be burned to create heat or converted into electricity.
Biomass is organic, meaning it is made of material that comes from living organisms, such as plants and animals. The most common biomass materials used for energy are plants, wood, and waste. These are called biomass feedstocks. Biomass energy can also be a non-renewable energy source.
Biomass contains energy first derived from the sun: Plants absorb the sun’s energy through photosynthesis, and convert carbon dioxide and water into nutrients (carbohydrates).
The energy from these organisms can be transformed into usable energy through direct and indirect means. Biomass can be burned to create heat (direct), converted into electricity (direct), or processed into biofuel (indirect).
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What is meant by autosomal recessive inheritance?
Autosomal recessive inheritance refers to the way in which some genetic changes, or rare diseases, are passed down from parents to their offspring.
The specific chromosomes impacted by autosomal recessive inheritance are autosomal. This indicates that one of the first 22 non-sex chromosomes contains the gene mutation that results in an autosomal recessive uncommon disease or ailment. The 46 chromosomes found in 23 pairs make up the body's cells. One from the mother and one from the father make up each pair of genes.
When a person receives two mutated genes from each of their parents, this is known as autosomal recessive inheritance. The same gene has mutations in both copies. Both parents must have the gene mutation for this to occur. They are unlikely to have any disorder symptoms because they are carriers.
There is no guarantee that the offspring of parents who carry an autosomal recessive gene mutation will suffer from a rare disease.
Their offspring will have a 25% chance of being born with two normal genes (i.e., without any mutations), a 25% chance of inheriting both recessive gene mutations (i.e., the child will be affected by an autosomal recessive disorder), and a 50% chance of having a child who is a carrier of the same genetic mutation as their parents but does not exhibit any symptoms of a rare disorder.
A disease that is autosomal recessive
Tay-Sachs is one of the most well-known autosomal recessive diseases. The majority of sufferers of this rare neurological system disease pass away in their early childhood, and life expectancy is short.
It is a progressive syndrome that causes the central nervous system of the body to deteriorate. The group with the highest prevalence of this rare illness is European Ashkenazi Jews.
An additional autosomal recessive ailment is sickle cell disease. African Americans make up to 2 in 12 bearers of this autosomal recessive gene variant. Red blood cells with this autosomal recessive condition are more likely to be sticky and stiff, which makes it harder for them to transport oxygen throughout the body. Further medical and health issues may result from this.
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which element has the greatest tendency to undergo oxidation
Francium has the greatest tendency to undergo oxidation
Francium is a member of the group of elements known as alkaline earth metals. It has the highest propensity to lose one electron because, after doing so, it will assume the noble gas structure.
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Which plant is poisonous plant?
A poisonous plant is considered poisonous if it can injure or kill an organism when it is touched or consumed in sufficient amounts, or if it may cause a toxic and/or lethal response. When enough of a material is absorbed, breathed, or consumed by an organism, it becomes a poison and causes damage to the organism.
These poisonous plant include tulips, certain irises, agapanthus, autumn crocus, clivia, daffodil, hippeastrum, hyacinth, and lily of the valley. Bush tucker uses the vivid yellow and red seeds, but only organism after the poisonous plant have been leached away. If organism consume them straight from the branch, they are toxic.
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What is distribution of traits?
The alleles of the various genes that each individual chromosome carries are mixed and matched traits with regard to one another, resulting in a distribution of traits.
When comparing populations, differences are typically seen as variations in the frequency distributions of the states (or kinds) of a certain feature (or set of traits). As a result, if two or more populations exhibit the same trait states at the same rates, they are said to be identical. A population's variance and pattern of attributes are influenced by both genetic and environmental variables. During meiosis, chromosomes can switch sections, causing mutations brought on by environmental factors, mistakes in DNA replication, or both.
As a result, we can infer that the alleles of the numerous genes that each chromosome carries are mixed and matched traits in relation to one another, producing a distribution of traits.
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What is the fermentation product produced in an anaerobic muscle cell ?
Answer:
During a strenous activity,the supply of oxygen do not reach body requirement for aerobic respiration to occur ,therefore fermentation anaerobic respiration occurs and the end product is lactic acid which then accumulates in the muscles.Answer:
Lactic acid.
Explanation:
During anaerobic respiration,it results to the formation of lactic acid in the muscles cell as the end product of the process.
a man is heterozygous for the hemoglobin gene, with one normal allele and one sickle allele. what are the chances that one of his sperm cells will have the sickle allele for hemoglobin?
If a man is heterozygous for the hemoglobin gene, with one normal allele and one sickle allele, then the chances that one of his sperm cells will have the sickle allele for hemoglobin is 50%.
How do alleles segregate in a heterozygous individual?A heterozygous is an individual who have two different alleles for a gene, and alleles segregate in a heterozygous individually different gametes in order to form the zygote after fecundation.
Therefore, with this data, we can see that alleles segregate in a heterozygous individual have two different alleles and they segregate in equal ratios during meiosis.
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Decades ago farming was not a controversial subject. Today, people have very definite opinions as to how their food should be produced. The three methods of farming are conventional, organic, and GMO farming. You have been assigned the task of creating a table to compare and contrast the three methods. Choose ALL of the descriptors that could be placed in the Organic column.
A) produce is of higher nutritional quality than with a similar crop grown using conventional methods
B) reduced expenses in organic production that comes with hand labor and simpler farming techniques
C) use of biological control, crop rotations and other techniques to manage weeds, insects and diseases
D) yield is typically lower in an organic field than for a similar crop grown in a conventional or GM cropping system
E) elimination of synthetic pesticides and fertilizers and other materials, such as hormones and antibiotics
The descriptors that could be placed in the organic column for food production include production is of higher nutritional quality than with a similar crop is grown using conventional methods; use of biological control, crop rotations and other techniques to manage weeds, insects and disease; and elimination of synthetic pesticides and fertilizers and other materials, such as hormones and antibiotics (Option A, C and E).
What does organic food production mean?Organic food production refers to all methods used in agriculture to produce foods in a scalable quantity and simultaneously avoid contaminant sources such as herbicides and pesticides that may suffer from bioaccumulation.
Conversely, genetically modified organisms such as bt crops involve the use of genetic engineering techniques in the laboratory to produce foods in a scalable quantity.
Therefore, with this data, we can see that organic food production is the choice method to be free of any contaminant substances but it may raise concerns regarding the volume of production when compared to other methods.
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Which parts of this organism are haploid? (select all that apply)
C
D
A
B
The parts of the organism that are haploid would be A and D. The second and third options.
What are haploids?Haploids refer to living organisms or parts of living organisms that contain a single chromosome set (n) instead of double chromosome sets (2n). Living organisms or parts of living organisms with double chromosome sets are said to be diploid (2n).
Organisms whose life cycles alternate between haploid and diploid generation can exist either as haploids or as diploids or even as both.
The picture shown in the image is that of a bryophyte, mosses to be precise. The dominant generation is the haploid generation. Thus, D represents the haploid or gametophyte generation.
The gametophyte carries the sporophyte (C) which divides by meiosis to produce haploid spores (A).
Thus, the parts of the picture that are haploid are A (spores) and D (gametophyte) respectively.
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What are the 3 main checkpoints?
Cell-cycle checkpoints prevent the transmission of genetic errors to daughter cells. There exist three major cell-cycle checkpoints; the G1/S checkpoint, the G2/M checkpoint, and the spindle assembly checkpoint (SAC).
The vast amount of DNA contained within the chromosomes must be precisely duplicated before being precisely separated into two daughter cells that are genetically identical. This is the most fundamental task of the cell cycle.
Walther Flemming was the first to depict the various steps in the cell cycle that lead to cell division in 1882 after creating techniques to stain cells that revealed subcellular structures. To divide the genetic material in a cell, spindle fibers create a protein structure. When a parental cell undergoes mitosis or meiosis, the spindle is required to divide the chromosomes into two daughter cells in an equal number. The spindle fibers that form the mitotic spindle are known as such during mitosis.
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"in bone, magnesium contributes to bone strength and rigidity, but it also has multiple other roles in the body. click to select the functions of magnesium.
a) Regulation of acid/base balance;
b) Activation of vitamin D;
c) DNA synthesis;
d) Muscle contraction and relaxation;
e) Blood pressure regulation;
f) Energy metabolism"
According to the research, the correct answer are Option D, F and E. The functions of magnesium are Muscle contraction and relaxation; Blood pressure regulation and Energy metabolism.
What is magnesium?It is an essential mineral that is present in almost all the cells of the organism, it is the bones that are in charge of storing it.
In this sense, it intervenes in the transmission of the nervous impulse and in the muscular relaxation and participates in the production of energy at the muscular level and the correct cardiovascular function.
Therefore, we can conclude that according to the research, magnesium is essential for energy production, participates in the tone of blood vessels, cardiovascular function and almost all metabolic processes.
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Describe ways to maintain fish as renewable resources and explain how scientific data are used to manage fish stocks?
Answer:
Electronic sonar and Global Positioning Systems are used to locate the fish. Ships cross the area, dragging huge nets at the right depth to catch them. The usable catch is often cut, packaged, and frozen right on board. Ships can remain on the ocean for several weeks before returning to home port.
Stock assessments are scientific processes that analyze available data using statistical models to produce management advice. That management advice estimates sustainable harvest levels maximizing fishery removals while protecting stocks’ long-term health.
What heat source drives the Water Cycle? A Ocean B) Wind D Moon Sun
Answer:
D) Sun
Explanation:
The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.
What is the correct order of steps in the cell cycle ?
The cell cycle is a four stage procedure
Gap 1, or G1 phase Synthesis, or S phase Gap 2, or G2 phase Mitosis, or M phaseThe period between cell divisions is represented by the stages G1, S, and G2, which together make up interphase. An individual cell "decides" whether or not to join the cell cycle and divide based on the stimulatory and inhibitory signals it receives.
Checkpoint signalling systems and specialised proteins are used by cells to guarantee correct cell cycle progression. DNA damage is checked for before and after S phase at checkpoints at the end of G1 and the start of G2. Similar to this, a checkpoint in mitosis makes sure that the chromosomes are properly separated in anaphase before the cell's spindle fibers are properly aligned in metaphase.
Hence, cell cycle is sequence of event in organized manner.
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abnormal proliferation of cells is called
Whether benign or malignant, a tumour is any aberrant cell proliferation.
A benign tumour, like a typical skin wart, stays in the same place, without infecting nearby healthy tissue or disseminating to other parts of the body. However, a malignant tumour has the capacity to both invade nearby normal tissue and spread throughout the body through the circulatory or lymphatic systems (metastasis). Only malignant tumours are legitimately referred to as cancers, and cancer is particularly deadly due to its propensity to penetrate and metastasis. The spread of malignant tumours to distant body regions frequently renders them resistant to such localised treatment, whereas benign tumours can typically be surgically removed.
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