Nitrogen is referred to as the gas which is the most abundant in Earth’s atmosphere and is denoted as option A.
What is Atmosphere?These refers to the layer of gases which envelop the planet. This part of the earth has different gases such as carbon dioxide . oxygen etc. It is important as it is used by living organisms for their various forms of metabolic reactions.
However, the most abundant of the gases present in the atmosphere is nitrogen which is used for various reasons by humans and other living organisms and is therefore the reason why option A was chosen.
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Identify the ways in which the work of franz boas challenged the concept of race.
a. By studying traits in immigrants,
b. Boas showed that racial types were not static and differed across different environments.
c. By studying traits in both parents and their children,
d. Boas showed that the phenotypic characteristics associated with race can change in a single generation.
All of the given answers, By studying traits in immigrants, Boas showed that racial types were not static and differed across different environments, traits in both parents and their children.
Despite sharing the same DNA, identical twins are not exactly same. Each twin is unique in terms of personality, skills, and likes and dislikes. Even now, a number of disorders, such as cancer, diabetes, autism, and schizophrenia, can affect one twin but not the other. Identical twins' variances are all caused by extrinsic causes rather than variations in their DNA.
Twin studies are frequently used by scientists to better understand how attributes are influenced by both the environment and genes. They contrast the traits of fraternal twins, who share half of their DNA with each other like siblings, and identical twins, who have the same DNA. If identical twin pairs exhibit a trait more frequently than fraternal twin pairs, it is likely to have an inherited component.
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examples of anabolic reactions include the synthesis of large from amino acid building blocks, and the synthesis of new dna strands from nucleic acid building blocks.
To create complex molecules from smaller ones, anabolic pathways need an energy input.
What constituent parts go towards the production of DNA?
Adenine, Cytosine, Guanine, and Thymine. These are the four chemical components that make up the DNA molecule. They are parts of the nucleic acid that gives DNA its tongue-twisting full name, deoxyribonucleic acid. A, C, G, and T.
Other examples include the creation of big proteins from amino acid-building pieces and the creation of new DNA strands from nucleic acid-building components.
Therefore anabolic processes include creating larger molecules.
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Standard NCES.7.L.2.3- Jared has a genetic disorder. Which is the most likely reason Jared has the disorder?
Group of answer choices
Jared was exposed to chemical pollutants.
Jared has a poor diet and does not exercise.
Jared’s mother or father also has the disorder.
Jared attends school with another child who also has the disorder.
Answer: Jared’s mother or father also has the disorder.
Explanation: Genetic means coming from your ancestors DNA, so the most logical answer is Jared’s mother or father also has the disorder.
C: Jared's mother or father also has the disorder.
Predict what would happen to the secondary structure of a protein if an alcohol that disrupts hydrogen-bonding were added.
A. Nothing would happen to the protein; hydrogen bonding is not important for secondary structure
B. The beta sheets would unfold, disrupting protein structure
C. The a helixes would unfold, disrupting protein structure
D. Individual amino acids would be hydrolyzed from the protein, disrupting protein structure
The beta sheets would unfold, disrupting protein structure and The a helixes would unfold, disrupting protein structure.The correct option is B and C both.
The hydrogen bond is particularly important in protein structure because it stabilizes secondary, tertiary, and quaternary structures created by the alpha helix, beta sheets, twists, and loops. Hydrogen-bonding of backbone atoms inside the protein results in both alpha and beta configurations. Both structures will unfurl if Hydrogen-bonding is disrupted.
The sheets would unfold, causing the protein structure to be disrupted. The helices would unfold, causing protein structure to be disrupted.
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What happens within the cytoplasm of a cell?
O maintaining of a cell's shape and structure
O communication with other cells
O replication of DNA
O majority of metabolic activity
Answer:
A. Maintaining of a cells shape and structure,I believe
Explanation:
Answer: A. maintaining of a cell's shape and structure
true‑breeding plants are typically heterozygous for most genes.
a. True
b. False
True-breeding organisms are genetically identical and have identical alleles for specified traits. The alleles for these type of organisms are homozygous.
What is heterozygous Gene and true‑breeding plants ?
Diverse alleles for a particular trait are referred to as heterozygous. You have a heterozygous genotype for that gene if the two copies differ. Which qualities are expressed depends on the interaction between the two alleles.
You have a heterozygous genotype for that gene if the two copies differ. If you have one gene for red hair and one allele for brown hair, for instance, you may be heterozygous for hair colour. Which qualities are expressed depends on the interaction between the two alleles.An organism that consistently transmits particular phenotypic qualities (i.e., physically manifested traits) to its progeny of many generations is said to be true-breeding, often known as a purebred (biology slang: pure line or true-breeding line).During sexual reproduction two sex cells fuse to make a fertilized cell with one set of chromosomes what must be true about the number of chromosomes in sex cell?
Answer:both genders have the same amount of chromosomes
Explanation:Sexual reproduction is the process in which male and female gametes fuse to form a zygote. The zygote consists of a complete set of chromosomes, which 23 pairs or 46 chromosomes.
Sexual reproduction is the process in which two sex cells fuse to form the fertilized cell, usually known as zygote. The sex cells are egg or ova and sperms for females and males, respectively.
The number of chromosomes in each sex cell and fertilised cell will be:
The sex cells are formed by the meiotic division, such that each ova and sperm will consist of 23 chromosomes.
These haploid cells fuse to form a diploid zygote, which will have the same number of chromosomes as parent cell. The umber of chromosomes in the fertilised egg will be 46.
Therefore, the number of chromosome in each sex cell is 23, which fuses to form a diploid fertilised cell having 46 chromosomes.
Select the plant cell's important sources of chemical energy transfer:
a. ATP
b. NADPH
In addition to ATP synthesis in the mitochondria, plants can also produce ATP in their chloroplasts during the light reactions of photosynthesis.
The two principal organelles in plant leaves that produce ATP are chloroplasts and mitochondria. Two different types of energy-carrier molecules, ATP and NADPH, store the solar energy in the light-dependent reactions. These molecules' stored energy is contained in the bond that binds one atom to the molecule. It is a phosphate atom for ATP and a hydrogen atom for NADPH. The light response of photosynthesis results in the production of ATP and NADPH. The biosynthetic pathway employs these. Additionally, they are employed in the Calvin cycle to lower carbon dioxide.
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When testing fertilizer on a tomato farm, one patch of soil is given fertilizer and another patch (the same size) is not. Which one is the experimental group?
The fertilized soil is the experimental group when one patch of soil is given fertilizer and another patch (the same size) is not (Option C).
What is the experimental group?The experimental group is the sample in a given experiment that receives the treatment using the independent variable in order to test the behavior of the sample under treatment.
Therefore, with this information, we can conclude that the experimental group receives the treatment in an experiment, while the control group does not receive the treatment.
Complete question:
When testing fertilizer on a tomato farm, one patch of soil is given fertilizer and another patch (the same size) is not. Which one is the experimental group? A. The amount of rain B. The amount of sunlight C. The fertilized soil D. The unfertilized soil
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Which labels would correctly model photosynthesis?
A:
B:
C:
D:
E:
Answer:
a carbon dioxide is the correct answer
A. Using information from data in Graph 2, describe the relationship between marine iguana body length and reproductive success for male iguanas on Genovesa and Santa Fe.
The marine iguana evolved from the land iguana which was introduced to the Galapagos Islands and adapted to life in the sea to survive on the islands.
The claws are long and sharp enough to grab onto coastal rocks or in strong currents. After venturing into the cold Galapagos waters they become dark gray in color to better absorb sunlight. increase.
This variation in marine iguana body size from island to island is due to the amount of food available which depends on sea temperature and algae growth. Marine iguanas are sexually dimorphic with adult males on average being considerably longer and weighing about twice as much as adult females.
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what enables the copied chromosomes to separate during binary fission?
In bacteria, a mechanism known as binary fission separates the replicated chromosomes to do this. Cells split into two new daughter cells by a process called binary fission.
There are exactly as many chromosomes in each daughter cell as in the parent cell. Bacteria, algae, and protozoans all use the binary fission mechanism. It stands out for having a straightforward cell division process. Binary fission is the mechanism responsible for this.
A chromosome is a lengthy DNA molecule that contains all or a portion of the genetic code for an organism. The majority of eukaryotic chromosomes contain packing proteins called histones that help chaperone proteins attach to and condense the DNA molecule in order to preserve the integrity of the chromosome.
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Any being that uses the sun's energy to create carbohydrates (sugars) is a
A.secondary producer
B.secondary consumer
C.primary consumer
D.primary producer
Answer:
A
Explanation:
Answer:
D.primary producer
Explanation:
if one were to attempt gene therapy, would a recombinant form of the insulin gene be needed?
If one were to attempt gene therapy, a recombinant form of insulin gene will not be needed.
In the field of science, gene therapy can be described as replacing a faulty gene with a new gene.
A recombinant form of insulin will not be needed for gene therapy because the insulin gene regulatory region will allow the expression of the insulin gene in the pancreas. If insulin were to be produced by any other cells of the body, then the insulin gene regulatory region for that cell of the body will be required.
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Which generalization about Earth's layers can be made based on how the layers were formed?
O A.
O B.
O C.
O D.
Temperature and density increase with depth.
Temperature and density increase with layer thickness.
Temperature and layer thickness increase with depth.
Density and layer thickness increase with temperature.
The layers were formed Temperature and density increase with layer thickness.
The correct option is B.
What are Earth's layers made of?The Lithosphere is a region of stiff, brittle rock that is made up of the crust and the uppermost portion of the mantle. The Asthenosphere is a region of asphalt-like consistency that lies beneath the solid lithosphere. The Earth's tectonic plates are moved by the asthenosphere, a region of the mantle.
Who discovered the Earth's layers?Sir Isaac Newton (1700) and Inge Lehmann (1937) identified the three primary layers of the Earth: the crust, mantle, and core. Composition establishes layers. Temperature and pressure cause physical differences in each layer.
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Why do muscles need both an origin and an insertion point to properly function?
Which of the following statements best describes how organisms such as rabbits obtain the carbon necessary for building biological molecules?
A. Rabbits eat plants and use energy absorbed from the plants to make carbon atoms from electrons, protons, and neutrons in the air.
B. Rabbits eat plants and break down plant molecules to obtain carbon and other atoms that they rearrange into new carbon-containing molecules.
C. Rabbits eat plants and use water absorbed from the plants to hydrolyze CO2CO2, which the rabbits breathe in from the air and use as a carbon source.
D. Rabbits eat plants and make carbon-containing molecules by using carbon atoms that the plants absorbed from the soil and stored in the cells of their leaves.
Rabbits get their carbon from eating plant molecules, which they then rearrange into new carbon-containing molecules. This is how rabbits get the carbon they need to make biological molecules.
Carbon is a necessary component for all of Earth's life. The intake and release of carbon is a component of all plant and animal life. Since the rabbit is a heterotroph, it is unable to synthesize its own food. These life forms either take in carbon to assist in the production of food or release carbon as part of respiration. Rabbits consume green plants and, as part of the carbon cycle, break down plant molecules like cellulose, glucose, starches, fats, and proteins into simple substances that can be used to produce energy and rearrange them into new carbon-containing structures and molecules.
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What distinguishes a coelomate animal from a pseudocoelomate animal is that coelomates?.
Have a body cavity completely lined by mesodermal tissue whereas pseudocoelomates do not.
A pseudocolor is a coelom located between mesodermal and endoderm tissues and not completely surrounded by mesodermal tissue. The true coelom is completely surrounded by mesodermal tissue and thus can be divided into compartments. Coelomate Annelida strains contain segmented worms and include earthworms and leeches.
The most distinctive feature of the torso is metamerism the division of the body into similar parts or segments arranged in a linear array along the anterior-posterior axis of the torso. The advantage of body cavities is that the fluid-filled cavities around the organs create a hydrostatic skeleton to aid movement, allowing more efficient circulation of nutrients and removal of waste products.
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The processes of myelination and synaptic pruning make neural processing ________ and ________ complex.
The processes of myelination and synaptic pruning make neural processing faster and more complex during the transmission of nerve impulses by means of the nervous system.
What is myelination?The process of myelination refers to the mechanism by which nerve cells are covered by layers of myelin which confer isolation required to conduct electrical nerve impulses. On the other hand, synaptic pruning refers to the removal of the excess of synapses during development.
Therefore, with this data, we can see that synaptic pruning and myelination are critical pieces during the development of the nerve system which transmits signals in the body.
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Which pieces of information about mitochondria is most useful as evidence for the endosymbiotic theory?
There is ample evidence that mitochondria have their own machinery for protein synthesis and contain DNA that is distinct from that of the cell nucleus.
The DNA of mitochondria and plasmids is circular double-stranded DNA in the form of plasmids, similar to that of bacteria. It is unbound by histones. Furthermore, many RNA and ribosome properties in eukaryotic cell mitochondria are similar to those of bacteria. However, plastid and mitochondrial DNA contain far fewer genes than nuclear DNA; nuclear genes encode the vast majority of mitochondrial and plastid proteins.
In addition to lacking histones, both mitochondria and chloroplasts have circular, single-stranded DNA. Prokaryotes are the only organisms that have circular, single-stranded DNA. These characteristics would allow mitochondria and chloroplasts to thrive on their own, lending credence to the endosymbiotic theory.
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Standard NCES.7.L.1.3 - The structures in the bodies of many organisms have levels of organization that help the body to carry out life processes. Which list correctly shows how these levels are organized from the simplest to the most complex?
Group of answer choices
tissue, cell, organ, organ system
organ, cell, organ system, tissue
cell, tissue, organ, organ system
organ system, tissue, organ, cell
Answer:
Cell, tissue, organ, organ system.
Explanation:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
what is an ecosystem
Answer:
An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
Explanation:
Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.
What is the most common oxidation state of the chalcogens compared to the halogens?.
-2 is the most common oxidation state of the chalcogens compared to the halogens.
What is a simple definition of halogens?
When a halogen reacts with a metal, it produces a salt. Halogen lamps are lighted by halogen and inert gas bulbs. The periodic table of chemical elements includes five halogens: fluorine, chlorine, bromine, iodine, and astatine.
Chalcogens (ore producing) are chemical elements in Periodic Table Group 16. This family is sometimes referred to as the oxygen family. It is made up of the elements oxygen (O), sulphur (S), selenium (Se), tellurium (Te), and polonium (a radioactive element) (Po)
Therefore in comparison to halogens, chalcogens have the most prevalent oxidation state of -2.
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12. What determines a protein's structure and function?
Each protein's 3D shape and function depend on its amino acid sequence. Nucleotides in gene sequences code amino acids.
What is protein?Large biomolecules and macromolecules known as proteins are made up of one or more long chains of amino acid residues.
Proteins are the fundamental elements necessary for life. Protein can be found in each and every cell in the human body. A chain of amino acids constitutes the fundamental structure of proteins. In order for your body to be able to repair damaged cells and create new ones, you need to get enough protein in your diet.
They serve as the fundamental component of a variety of bodily structures and substances, including hair and skin, as well as enzymes, cytokines, and antibodies.
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According to the segment, what percent of the world’s freshwater supply is used for agricultural purposes?.
The centrally located area between the lungs contains?
The space in the middle, between the lungs and outside of it, is called the mediastinum.
The space in the middle between the lungs and outside of it is called the mediastinum. The heart, aorta, trachea, esophagus, thymus gland, bronchial tubes, and a large number of lymph nodes are all found within.)
The thoracic cavity's central compartment is called the mediastinum. It is an undelineated region that contains a group of thorax structures, including the heart and its vessels, the esophagus, the trachea, the phrenic and cardiac nerves, the thoracic duct, the thymus, and the central chest lymph nodes. It is surrounded by loose connective tissue.
Pleurae surround the mediastinum on the right and left, enclosing it within the thorax. It is surrounded by the lungs to the sides, the spine to the back, and the chest wall to the front. It connects the vertebral column behind the sternum in front. Except for the lungs, it contains all of the thoracic organs. It continues with the neck's loose connective tissue.
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In complex movements, muscles commonly work in groups rather than individually. The hamstrings flex the knee. Which muscles are antagonists to the hamstrings?.
The antagonist is the quadriceps. The quadriceps contract to extend the knee during the contact and recovery phase, while the hamstrings lengthen to allow movement.
Is the hamstring stretch antagonistic or agonistic?
When the knee extends, the hamstrings stretch, as well as the antagonists of this activity. When the knee bends, the hamstrings become the agonist muscle, and the quadriceps now become the antagonist.
The three hamstring muscles are as follows: Biceps femoris, located on the outside of your body. This hamstring's function is to flex your knee, extend your thigh at your hip, and rotate your lower leg from side to side when your knee is bent.
Therefore, In complex movements, muscles that are antagonists to the hamstrings are the quadriceps.
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an order is subdivided into several
An Order can be further divided into family .
In general class is divided into order , order to family and family to groups. Family occupies lower place in the taxonomic categories .example include Grasses belong to the order Poales and it belongs to one of its families, which is called Poaceae.
Taxonomy is the study of animal ,plant ,microorganism and human which help to classify them into further categories and study them with details .Other important example include human and whale they are two different identity but they are grouped under mammals and are taxonomically related . Taxonomy is based on Characterisation, Identification, Nomenclature, Classification.
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2. Which of the following is not a source of genetic variation?recombinationmutationscloningcrossing over
Genetic variation refers to the differences in the sequance of DNA between individual organisms of a species. Recombination produces a new combination of allele by breaking down and recombining pieces of DNA. Mutation produces gene variants by altering gene activity or protein function. Crossing over increases genetic diversity that leads to creation of new combination of genes.
Cloning increases the chances of superior traits by copying the alleles which contain such DNA. It leads to erosion of diversity because there is no combination that is taking place since there is no fertilization along the process.
Answer - Cloning
How are you likely to feel when your parasympathetic nervous system has been activated?.
Answer: Most likely, because you'd feel in your body.
Explanation: When the parasympathetic nervous system (PSNS) is activated, it slows our heart and breathing rates, lowers blood pressure and promotes digestion. Our body enters a state of relaxation, and this relaxation breeds recovery.
