Answer:
Human air pollution is caused by things such as factories, power plants, cars, airplanes, chemicals, fumes from spray cans, and methane gas from landfills. One of the ways that humans cause the most air pollution is by burning fossil fuels. Fossil fuels include coal, oil, and natural gas
Some animals have only blank cell
Some animals only have a single cell.
What are cells?Cells are described as the basic unit of life, all living organisms are made up of cells. Living component that is made up of macromolecule. The cell also contains cell organelles that perform the function of cells.
We have two types of cells and they include
prokaryotic cells and eukaryotic cells.Living organisms are also classified in two types,
unicellular and multicellular.Unicellular organisms are made up of only a single cell and they include organisms such as bacteria, protest, and yeast.
Multicellular organisms are those which are made up of more than one cell. These animals are these organisms are animals, plants, etc.
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In a cross of Ff x Ff, the probability of having a dominant phenotype is
O 1/4.
O 1/3.
O 1/2.
O 2/3.
O 3/4.
In a cross of Ff x Ff, the probability of having a dominant phenotype is 3/4 .
Ff represents a heterozygous individual, meaning that it has one dominant allele (F) and one recessive allele (f) for a given trait. When two heterozygous individuals are crossed, the possible genotypes of the offspring are FF, Ff, and ff, with the probability of each being 1/4 (25%), 2/4 (50%), and 1/4 (25%) respectively.
The dominant phenotype is the physical appearance of an organism that is determined by the dominant allele. In this case, the dominant allele is represented by F and the recessive allele is represented by f. So, the dominant phenotype is only determined when the dominant allele is present, which is in the case of FF and Ff, which is 3/4 or 75% of the total offspring.
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impact of dairy calf on dairy development .
The impact of the dairy calf on dairy development can be significant. A strong and healthy calf can provide many benefits such as Improved genetics, Reduced herd replacement cost, increased milk production and better herd health.
The term "dairy development" means what?By providing back-ended capital allowances for bankable projects, dairy development encompasses a wide range of operations such as improving milk production, preservation, procurement, transportation, processing, and marketing.
What role does the dairy sector play in India?The importance of the dairy industry in India is that it contributes to economic growth. Millions of rural households are employed and the country's economy is supported by the dairy industry. Farmers who are impoverished and without land can also make a good living from it.
Numerous advantages can be gained from a strong and healthy calf, including improved genetics, lower herd replacement costs, enhanced milk output, and better herd health.
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A rock cycle model is shown.
(In image)
What type of rock is formed from cooling and hardening process?
A. Sedimentary rock
B. Igneous rock
C. Metamorphic rock
D. Magma rock
Answer:
b) Igneous rock
Explanation:
Igneous rock is formed from cooling and hardening process. As given in the diagram the magma undergoes cooling and hardening process to become an Igneous rock. Hence, the option (b) is correct.
Answer:
What type of rock is formed from cooling and hardening process?
A. Sedimentary rock
B. Igneous RockC. Metamorphic rock
D. Magma rock
For which amino acid sequence does the RNA sequence UUUCCUCAA code?
1. leu-thr-glu
2. phe-pro-his
3. phe-pro-gln
4. ser-his-gln
Answer:
3
if you translate the mRNA to amino acids using a chart or memorization, you can see it's 3
Answer:
3. phe-pro-gin
Explanation:
Because the ammino acid chart goes down from row from row
Select the correct text in the passage.
Which sentences describe the discipline of the natural sciences?
It includes different sciences, such as biology, chemistry, and earth sciences. With the help of toxicology, environmental scientists can study the toxic effects of chemicals on humans. Chemistry contributes to environmental science through the study of chemicals and chemical processes, such as pollutants and the chemical characteristics of the environment. Earth science helps in studying Earth, the oceans, and the atmosphere. In addition, epidemiology, which is another prominent scientific field, guides environmental scientists to study diseases that affect human health.
Sentences A. It includes different sciences, such as biology, chemistry, and earth sciences and C. Chemistry contributes to environmental science through the study of chemicals and chemical processes, such as pollutants and the chemical characteristics of the environment. Earth science helps in studying Earth, the oceans, and the atmosphere describe the discipline of the natural sciences.
What is the discipline of the natural sciences?The discipline of the natural sciences is a wide scientific discipline that includes different branches in the life sciences (i.e. biology) and also chemistry and earth sciences, which work together to unravel questions about the natural world.
Therefore, with this data, we can see that the discipline of the natural sciences is a wide area that includes biology and related scientific field such as chemical sciences and earth or ecology in order to better understand the functioning of the natural world.
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Diffusion of substance across the cell membrane is influenced by all of the following except: A. Is ability to dissolve in water, B. The charge on the ion molecule_ C The charge of the memebrane_ D. The size of the membrane channel, E: Its 'solubility in the lipid membrane
All of the factors below, with the exception of one, affect how a drug diffuses over the cell membrane: it has the capacity to dissolve in water.
What is capable of diffusing across a cell membrane?As a result, tiny polar but uncharged molecules like H2O and ethanol as well as gases like O2 and CO2 and hydrophobic compounds like benzene can permeate through the plasma membrane.
What elements could prevent a molecule from crossing a cell membrane?The concentration, charge, and size of a molecule all affect its capacity to penetrate a membrane. Molecules often move from high concentration locations to low concentration areas through membranes. Unless the cell maintains an electrical potential, cell membranes prevent charged molecules from entering the cell.
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Please help !!! Do you think the ability to self heal, temperature regulation, and enhanced night vision would spears quickly due to natural selection, or would it spread quickly?
The ability to self heal, temperature regulation, and enhanced night vision would would it spread quickly because these characteristic may increase the fitness of a species in a short period of time.
What is the relationship between adaptation and evolution?Adaptation and evolution are closely related because adaptation is a process of genetic change within a species over time in order to better suit its environment. This genetic change is then passed on to the next generation and over time can accumulate to form new species.
Therefore, with this data, we can see that adaptations that enhance the fitness of a species would tend to spread quickly in evolution.
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Which describes one thing that happens during thermoregulation when a sensor recognizes that a person's temperature is 35 degrees Celsius?
A. Hair on the body lies flat against the skin.
B. Blood vessels under the skin expand.
C. Sweat glands are turned on.
D. Muscles under the skin make body hair stand on end.
Thermoregulation: D. Muscles under the skin make body hair stand on end.
Why hairs of skin stand during thermoregulation?Thermoregulation means maintaining constant body temperature of 37 degrees Celsius. Through a number of physical mechanisms, the human body keeps its temperature at roughly 98.6°F (37°C). Shivering to increase body temperature, sweating to decrease it, and constricting or relaxing blood vessels to change blood flow are a few examples. An individual may overheat and develop hyperthermia if they are unable to control their body temperature. The inverse is also true: Hypothermia will result if the core temperature drops below a safe level. Both ailments have the potential to be fatal.
The skin's hairs aid in controlling body temperature. Each hair's erector muscle makes them stand straight when they're cold. Insulates by trapping a layer of warm air close to the skin.
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Why is air drier at the 30° N and 30° S and 90° N and 90° S latitudes, while it is wetter at the 60° N and 60° S
and 0° latitudes?
Here the picture to understand more please help!
Answer:Figure 8.3. 5: Major global climatic regions in relation to atmospheric convection cells.
Explanation:Rising air and low pressure creates rain and wet environments at 0 degrees and 60 degrees latitudes, while high pressure, sinking air creates drier conditions at 30 degrees and 90 degrees latitudes.
also here to comment to hope this helped
Use the following chemical reaction figure to answer the question below. What is the atomic number of the cation formed in the reaction illustrated above? Select one: a. 11 b. 10 c. 8 d. 1 e. 16
By using the chemical reaction, we can conclude that the atomic number if the cation formed is a) 11.
A positive-charged ion is known as a cation because it contains more protons than electrons (negatively-charged particles). When an atom loses one or more electrons, it creates cations because the overall charge becomes positive due to the loss of the negatively charged electron or electrons.
Because they move toward the negative electrode (cathode) in an electrical field and are positively charged, these ions are referred to as "cations." Except for hydrogen, all the elements that can produce cations are metals, whereas nonmetals can only produce anions. In fact, the tendency for metals to create cations and the tendency for nonmetals to generate anions is one of the chemical characteristics of both.
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Hi this is ugent i would like some help
Answer: V
Explanation:
If molecules in the sky scattered yellow light instead of blue light; sunsets would be colored a. orange b. yellow c. blue d. green e. none of the above
Sunsets would be colored blue if air molecules scattered yellow light rather than blue light.
Why does the sky change color as dusk falls?Light must pass through more of the atmosphere when the Sun is near the horizon during sunrise or sunset than it does when the Sun is overhead. More light is scattered as a result, including light with longer wavelengths like yellow, orange, and red, which gives sunrise and sunset skies their vibrant colors.
What occurs to blue light at dusk?The top rim of the Sun becomes blue due to the greater refractive index of blue light compared to red light. It is the blue sliver of sunlight that occasionally appears just beyond the horizon during the very last second of sunset.
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LIMITED TIME !!!!! PLEASE HELP!!!!!!!!!
The biological species concept emphasizes whether populations
Select one:
A. can mate with each other.
B. look the same
C. have similar ecological requirements.
D. share common ancestry.
Answer:
The biological species concept relies on behavioral data and emphasizes reproductive isolation between groups. The lineage species concept relies on genetic data and emphasizes distinct evolutionary trajectories between groups, which result in distinct lineages (branches on a phylogenetic tree).
Of these steps, which one occurs earliest in the process of producing recombinant DNA?
A) Human DNA fragments are mixed with the cut plasmids.
B) The same restriction enzyme is used to isolate the gene of interest and to cut the plasmid DNA.
C) The recombinant plasmids are mixed with bacteria.
D) Bacteria carrying recombinant plasmids are cloned.
Of these steps, The same restriction enzyme is used to isolate the gene of interest and to cut the plasmid DNA is the earliest in the process of producing recombinant DNA.
Enzymes and a variety of laboratory procedures are used in recombinant DNA technology to modify and isolate specific DNA sequences.This method enables the joining (or splicing) of DNA from different species or the creation of genes with unique functions. The resulting copies are referred to as recombinant DNA.
When two genetic materials from distinct sources are combined, the term defines the DNA, proteins, cells, or creatures that result. Recombinant chemicals are created in a lab and are being researched for many different uses, including the treatment of cancer.
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Transcribe and translate the following DNA sequence (nontemplate strand): 5’-ATGGCCGGTTATTAAGCA-3’ a. The mRNA would be 5’- AUGGCCGGUUAUUAAGCA-3’ and the protein will be MAGY. b. The mRNA would be 3’- AUGGCCGGUUAUUAAGCA-5’ and the protein will be MAGY. c. The mRNA would be 5’- ATGGCCGGTTATTAAGCA-3’ and the protein will be MAGY. d. The mRNA would be 5’- AUGGCCGGUUAUUAAGCA-3’ and the protein will be MACY.
The correct answer is that the mRNA strand would be 5’- AUGGCCGGUUAUUAAGCA-3’ and the protein it codes for would be MAGY.
a. The mRNA would be 5’- AUGGCCGGUUAUUAAGCA-3’ and the protein will be MAGY. This is correct.
The mRNA is created through the process of transcription, in which the DNA sequence is used as a template to create a complementary RNA sequence.
In this process, the nucleotide thymine (T) in the DNA is replaced by uracil (U) in the RNA. Also, the protein is created through the process of translation, in which the mRNA sequence is read by the ribosome, which translates the sequence of nucleotides into a sequence of amino acids.
In this case, the mRNA sequence codes for the amino acid sequence MAGY.
b. The mRNA would be 3’- AUGGCCGGUUAUUAAGCA-5’ and the protein will be MAGY. This is incorrect.
The mRNA is always synthesized in the 5' to 3' direction, so the correct mRNA strand would be 5'-AUGGCCGGUUAUUAAGCA-3'.
c. The mRNA would be 5’- ATGGCCGGTTATTAAGCA-3’ and the protein will be MAGY. This is incorrect.
The mRNA is created through the process of transcription, in which the DNA sequence is used as a template to create a complementary RNA sequence. In this process, the nucleotide thymine (T) in the DNA is replaced by uracil (U) in the RNA.
Also, the protein is created through the process of translation, in which the mRNA sequence is read by the ribosome, which translates the sequence of nucleotides into a sequence of amino acids.
In this case, the mRNA sequence would be 5'-AUGGCCGGUUAUUAAGCA-3' and would code for the amino acid sequence MAGY
d. The mRNA would be 5’- AUGGCCGGUUAUUAAGCA-3’ and the protein will be MACY. This is incorrect.
The mRNA is correct, but the protein would not be MACY. The mRNA sequence codes for the amino acid sequence MAGY, not MACY.
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1. Give an example of an element that has isotopes and list its natural isotopes (excluding chlorine, hydrogen and carbon)
Answer:
One example of an element with isotopes is sulfur. Its natural isotopes include sulfur-32 (0.94%), sulfur-33 (0.02%), sulfur-34 (4.21%), sulfur-35 (0.75%), and sulfur-36 (0.18%).
Answer:
One example of an element with isotopes is strontium, which has seven natural isotopes: 88Sr, 86Sr, 87Sr, 84Sr, 82Sr, 83Sr, and 81Sr. All of these isotopes are stable, except for 81Sr, which is a radioactive isotope with a half-life of 9.2 minutes.
Which of these is a downside of natural gas?
A. It is considered safe to use in homes.
B. It burns more cleanly than other fossil fuels.
C. Scientists have developed new ways of extracting it.
D. Extraction through fracking can contaminate groundwater.
Answer:
D is the answer
Explanation:
No need I just know it.
Remains of ancient organisms, modified underground for long periods by temperature and pressure: ...
fossilized remains of ancient organisms that have been heated and pressed for a very long time underground: coal, oil, and natural gas.
What type of fossil fuel is naturally most prevalent?Fossil fuels are made from organic material that has broken down due to the extreme heat and pressure of the earth's crust. Coal was identified as the most prevalent fossil fuel in a 2013 report by the International Energy Agency.
Exactly what fossil fuel has the maximum energy density?Hydrogen, which is also the world's most basic chemical element, has the highest energy density of any fuel. In comparison to wood or coal, gasoline, which is made by refining crude oil, has double the amount of energy (three times).
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You are in the year where the earth has no more land available for houses you decide to build an apartment up and need things to survive in each earths 5 layers (troposphere,stratosphere, mesosphere, thermosphere, exosphere) Question: what things would you need to survive the thermosphere(really hot it is 2000 degrees fahrenheit)
The things that you are required in order to survive the thermosphere may include heavy clothes, food, water, oxygen, heating absorbing artificial components, freeze, cold apparatus, etc.
What is Survival?Survival may be characterized as the act or fact of living or continuing longer than another person or thing. It is a struggle to avoid physical extermination and focus on ideal fitness as well as reproduction.
If you have to live in the thermosphere where the temperature is of the utmost high, you would be very cold because there aren’t enough gas molecules to transfer the heat to you. This also means there aren’t enough molecules for sound waves to travel through.
Therefore, the things that you are required in order to survive the thermosphere may include heavy clothes, food, water, oxygen, heating absorbing artificial components, freeze, cold apparatus, etc.
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Modeling a Food Web
In this activity, you will build a model of a food web in a specific aquatic ecosystem. You will then use the model to explain
what can happen to the competition in the ecosystem if environmental factors change because of natural factors and human
interference.
In contrast to a food chain, a food web shows how ecosystems function more graphically by showing how different animals are related to one another. To create a food web, list the primary producers, herbivores, omnivores, and carnivores for the given habitat.
What impact does human activity have on the ecosystem?Numerous human activities such as overpopulation, pollution, the burning of fossil fuels, and deforestation hurt an adverse effect on the physical environment. Climate change, soil erosion, poor air quality, and undrinkable water have all been brought on by changes like these.
What would happen if humans changed the way natural ecosystems functioned?Aridity and erosion may come from the ecosystem being altered by the loss of trees and biodiversity. Additionally, it causes extinction and climate change, and on a large enough scale, it might result in desertification.
What consequences do environmental changes brought about by nature have?Natural change processes include weather-related changes, plant and animal succession, and changes in reaction to geo-logic shifts. Geologic change describes how the terrain may be modified as a result of volcanism, uplift, or erosion. Succession is the gradual alterations of plants and animals in an ecosystem.
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How are viruses and pathogenic protozoa similar? Please include 5 sentences in your explanation. HELP THIS WILL HELP ME SO MUCH AND U WILL GET BEAINLYEST
Answer:
Viruses and pathogenic protozoa are similar in a few ways.
1- Both are microscopic organisms, meaning they are too small to be seen with the eye.
2- Both can cause disease in humans and other animals.
3- Both can spread from person to person or from animal to person.
4- Both can be treated with medication, although protozoa are generally more susceptible to treatment than viruses.
a typical efficiency of the human body is about _____.
A. 5%
B. 10%
C. 25%
D. 50%
E. 80%
Answer:
The answer is C , which is 25 percent.
Identify the amino acid carried by tRNAs with the following anticodon sequences. a. 5' -UAG-3' b. 5' -AAA-3'
c. 5' -CUC-3' d. 5' -AUG-3' e. 5' -GAU-3'
a.) 5' -UAG-3'- Leucine b)5' -AAA-3' - Phenylalanine c.)5' -CUG-3'- Glutamine d.)5' -AUG-3'- Histidine e.) 5'-GAU-3'-Isoleucine
What is the role of amino acid?Amino acids are required for the synthesis of body protein and other important nitrogen-containing compounds, such as creatine, peptide hormones, and some neurotransmitters. Although allowances are expressed as protein, a the biological requirement is for amino acids.
What are some health benefits of taking amino acids?Some health benefits of taking amino acids are-Providing the body with energy, Enhancing the musculoskeletal system, Regulating digestion, Enforcing healthy sleep/wake cycles and Supporting the immune system.
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Leucine, phenylalanine, glutamine, histidine, and isoleucine are the first five amino acids listed in order of importance.
What function does an amino acid have?The creation of body protein and other vital nitrogen-containing substances including creatine, peptide hormones, and certain neurotransmitters depends on amino acids. The biological need is for amino acids, even though allowances are portrayed as protein.
What are some of the health advantages of consuming amino acids?The body receives energy from amino acids, which also improve the musculoskeletal system, regulate digestion, enforce proper sleep/wake cycles, and support the immune system. Proteins are made up of amino acid molecules. The components of life are proteins and amino acids.
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LIMITED TIME!! HELP PLEASE!!!!
200 years ago, the ancestors of apple maggot flies laid their eggs only on hawberries - but today, these flies lay eggs on hawberries and domestic apples. Females generally choose to lay their eggs on the type of fruit they grew up in, and males tend to look for mates on the type of fruit they grew up in.
So hawberry flies generally end up
mating with other hawberry flies and apple flies generally end up mating with other apple flies.
This is an example of _______ , isolation.
Select one:
genetic
temporal (time)
behavioral
geographic
Answer:geographic
Explanation:
Answer:
Geographic
Explanation:
HELP ME THIS IS DUE SOON!!!
List the different phenotypes in the F₂ generation. What
the frequency of each phenotype? One is filled out for you
In Mendel's experiments 0% of the F1 generation displayed the recessive phenotype, and 25% of the F2 generation displayed the recessive phenotype.
Who is Mendel?Gregor Mendel is known as the father of the genetics due to his immense contributions in the field of inheritance. Gregor Mendel has worked with the pea plants where he studied several traits in the plant. Mendel used to cross two parents that are true breeding for a particular trait.
The first filial generation (F1) were all dominant i.e. 0% recessive while the second filial generation (F2) were 3 dominant and 1 recessive i.e. 25% recessive.
Therefore, In Mendel's experiments 0% of the F1 generation displayed the recessive phenotype, and 25% of the F2 generation displayed the recessive phenotype.
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4. What do you think people can do to help speed up the process of lowering global greenhouse gas emissions ?
genetically modifying human ______ cells may directly affect future generations.
Gametic cells have the potential to have a direct impact on future generations that are exposed to human genetic modification.
Gametic incompatibility: What is it?One of the methods of reproductive isolation is gametic incompatibility. It is based on molecular interactions between different species that stop heterospecific fertilization. Gametic incompatibility has only been researched in a few model species, despite the fact that it can happen to any sexually reproducing creature.
Is incompatibility between gametes prezygotic or postzygotic?Prezygotic barriers prohibit animals from reproducing, or if mating does occur, the sperm cannot fertilize the egg. Contrast this with blastocyst walls, or barriers that form after fertilization. Gametic isolation is one type of prezygotic barrier.
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Writing at least three sentences, make a comparison between what happens with the
red dye in the water bin with what happens to a hot air balloon surrounded by cool air.
A comparison between what happens with the red dye in the water bin with what happens to a hot air balloon surrounded by cool air is given below.
1. The red dye in the water bin mixes and diffuses evenly throughout, much like the hot air balloon surrounded by cool air, which causes the air inside the balloon to cool and become more uniformly distributed.
2. The red dye in the water bin disperses evenly and gradually, just like the hot air balloon which gradually loses the heat and descends as the air around it becomes cooler.
3. The red dye in the water bin spreads out, taking on the shape of its container, similar to the hot air balloon which expands or contracts to match the surrounding air pressure.
What is a Dye?
A dye is a colored substance that is used to color fabrics, paper, and other materials. Dyes are usually applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the material.
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Bruno’s little spaniel managed to get into some nuts that he left out after watching a ballgame. Knowing that nuts are toxic to dogs, Bruno takes him in to see the vet. Checking the spaniel over, the vet tells Bruno that it looks as if the dog’s body is processing the toxin and should pass it naturally. His only fear is that as the toxin is excreted it may cause damage. The vet warns Bruno that they will have to keep a close watch on his dog for trouble in the future. What kind of trouble is the vet MOST likely worried about?
The vet warns Bruno that they will have to keep a close watch on his dog after taking nuts for trouble in the future therefore the kind of trouble the vet is most likely worried about is pancreatitis.
Who is a Vet?This is referred to as a medical professional who protects the health and well-being of both animals and people. They also specialize in the diagnosis and control of animal diseases through various types of treatment methods.
Nuts have a high fat content and it is dangerous in dogs because it causes a medical condition known as pancreatitis which is known as the inflammation of the pancreas.
This could lead to obesity of the dog in the long run and could predispose it to various forms of complications which is why the vet is most likely worried about it.
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