Answer:
Everything except can damage aquatic ecosystems
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All of the following are parts of the nephron except a.The glomerular capsule. b. The collecting duct. c. The proximal convoluted tubule. d. The distal convoluted tubule.
All of the following are parts of the nephron except the glomerular capsule and is denoted as option A.
What is a Nephron?This is defined as the functional unit of the kidney and comprises of various parts such as the collecting duct etc.
The nephron however doesn't have a glomerular capsule as this is found at the beginning of the tubular component of a nephron.
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A cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. Purple offspring result due to incomplete dominance. Then, two of the purple offspring are crossed. What proportion of the offspring from the second cross will be purple? 1 in 4 2 in 4 3 in 4 4 in 4.
If two of the purple (Aa) offspring are crossed, then the proportion of the offspring that will be purple is 2 in 4.
What is incomplete dominance?Incomplete dominance is a genetic phenomenon where both alleles are expressed in heterozygous individuals.
This process (incomplete dominance) is well known to produce a proportion of 2 in 4 with the phenotype in a cross between 2 heterozygous individuals.
In conclusion, if two of the purple (Aa) offspring are crossed, then the proportion of the offspring that will be purple is 2 in 4.
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Answer:The answer is B.) 2 in 4
Explanation:
the test
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Explanation:
we cant see the clues and the odds of figuring this out quick is improbable
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Which of the following is in the stratosphere?
satellites
tornadoes
the ozone layer
hurricanes
Answer:
The ozone layer.
Explanation:
Stratosphere, the layer above troposphere possess the ozone layer.
Answer:
the ozone layer
Explanation:
In which direction does moving air appear to turn in the northern hemisphere?
A. Down
B. Up
C. Right
D. Left
Answer:
It goes to the right in the northern hempisphere
Volcanoes play an important role in determining climate change. When a volcano erupts it throws out large volumes of ______________ gas and ash into the atmosphere which can influence climate patterns for years.
Answer: sulfur dioxide
Explanation:
The photograph shows wild salmon. What makes wild salmon a renewable
resource?
The wild salmon has the capability of reproducing quickly, which makes wild salmon a renewable resource.
What do you mean by Renewable resources?Renewable resources may be defined as those resources that are not exhausted and deliver endless energy.
Wild salmon can be taken as one of the chief sources of food that provides energy. This form of energy may lead to renewable energy because it is endless, as the reproduction rate of wild salmon is fast with large clutch size.
Therefore, the wild salmon has the capability of reproducing quickly, which makes wild salmon a renewable resource.
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Which physical feature made it difficult for the american colonists settled along the atlantic coast to expand westward?.
The Proclamation Line of 1763 was the physical feature which made it difficult for the american colonists to expand westward.
What is a Colonist?This is referred to an individual which colonizes or settles in a new area at a point in time.
The Proclamation Line of 1763 was a boundary marked in the Appalachian Mountains at the Eastern Continental Divide which prohibited Anglo-American colonists from settling on lands in the east region.
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8. What is the lowest level of organization in the environn
O species
O community
O population
organism
The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain. Please select the best answer from the choices provided T F
Answer:
True
explanation: im right trust me
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C12 H12 + 6O2 —» ATP + CO2 + H2O is the formula for cellular respiration is the same as the formula for the process that causes the yeast to release carbon dioxide? Yes or no and why?
In cellular respiration, break down of glucose into carbon dioxide and water takes place. In this process, ATP is produced directly in the reactions that transform glucose.
What is the process of cellular respiration?Cellular respiration is the process of combining oxygen with food molecules and then changing the chemical energy in these substances into life-sustaining activities and removing carbon dioxide and water as a by-product.
The process of cellular respiration involves:
Glycolysis.Pyruvate transformation.Krebs cycle.Oxidative phosphorylation.The equation of cellular respiration is as follows:
[tex]C_{6} H_{12}O_{6} + 6O_{2}------- > 6CO_{2}+6H_{2}O+energy[/tex]
Thus, the given formula for cellular respiration is not true.
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The union of a sperm and an egg is known as:.
Answer:
fertilisation
What is a large reason for genetically modifying crops?
A. to achieve higher yields
B. to attract insects to the food
C. to guide crops in evolving on their own
Answer:
c is the answer
Explanation: its the answer
The first haploid cell formed during spermatogenesis is the __________.
What was the name of the ship that the famous scientist charles darwin traveled around the world in from 1831 to 1836?.
Answer:
HMS Beagle
Explanation:
The name of the ship
A child hanging upside down from a tree takes a bite from a candy bar. They manage to chew the candy and swallow it successfully. How does the bolus move along the esophagus
The esophagus undergoes peristalsis and the muscular movements force the bolus to the stomach, even against the force of gravity.
Which is not an involuntary part of the swallowing reflex?The tongue rolls chewed food into a bolus and pushes it to the oropharynx. larynx.
Thus, The esophagus undergoes peristalsis and the muscular movements force the bolus to the stomach.
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Plants having nodules in their roots are-
A) Cereals
B) Vegetables
C) Pulses
D) All of the Above
Which of these elements is the least reactive?
a.
sodium
b.
krypton
c.
chlorine
d.
aluminum
In order to freeze columns a and b plus rows 1, 2, and 3, which cell should be active before applying the freeze panes command?.
Answer:
C4
Explanation:
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Explain why oxygen is critically important to all living things. Then explain how humans, flatworms, and a plant get the oxygen they need to survive
Answer:
Oxygen helps organisms grow, reproduce, and turn food into energy.
Explanation:
Humans get the oxygen they need by breathing it in through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.
Oxygen plays a critical role in photosynthesis for all plants.
Since flatworms have no lungs all their cells must be close to the skin to receive oxygen from the surrounding water or fluids.
Answer:
Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and flip meals into energy. Humans get the oxygen they want by way of respiratory thru their nose and mouth into their lungs. Oxygen offers our cells the capacity to smash down food in order to get the power we need to survive
what would happen cattails went extinct
Answer:
the cats would be tailess
Explanation:
:(
Answer:
There would be more soil erosion and global warming
Explanation:
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What is the dependent and independent variable in the temeperature and transpiration rate investigation
Answer:
Independent variable - time. Dependent variable - the distance moved by the bubble along the capillary tube. Control variables - temperature, air flow or draughts, adequate supply of water.
Identify the events that lead to a lake-effect snow.
rising warm air cold wind
Lake-Effect Snow
precipitation
as snow
Warmer Water
Reset
Next
Lake Effect snow occurs when cold air, often originating from Canada, moves across the open waters of the Great Lakes. As the cold air passes over the unfrozen and relatively warm waters of the Great Lakes, warmth and moisture are transferred into the lowest portion of the atmosphere. The air rises, clouds form and grow into narrow band that produces 2 to 3 inches of snow per hour or more.
Which are the key factors in lake snow affect?
Wind direction is a key component in determining which areas will receive lake effect snow. Heavy snow may be falling in one location, while the sun may be shining just a mile or two away in either direction.
The physical geography of the land and water is also important.
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If the number of hydrogen ion pumps in the etc is increased what impact will this have on atp production?.
A local farmer began to follow a more sustainable practice. as a result, his levels of carbon emissions decreased by fifty percent. the soil quality will most likely .
Answer:
Increase
Explanation:
Since it let the plants decay there, most probably the soil quality increased, and just like the person above me said, that is the answer if there is no missing information.
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what are the disadvantges of using fossil fuels to generate electricity
we often see soccer player suffering from muscle cramp during the game.As a science student,how would you explain this process to your friend?
Answer:
Muscle cramps are severe muscle contractions or spasms that generally take place by exhaustion, lack of water, or improper stretching, training, and/or warm-up throughout football practice or match.
Explanation:
Because i am Joy Boy
It is estimated that global energy consumption will increase 28% between 2015 and 2040, with fossil fuels still providing the bulk of the energy consumption (77%) by 2040, according to a new report by the U.S. Department of Energy's Energy Information Administration (EIA). What are are two major issues with our reliance on nonrenewable energy sources? * A) environmental pollution and dwindling supplies B) electricity consumption and dwindling supplies () geographic location and abundance of supplies D) electricity consumption and geographic location
The two major issues with our reliance on nonrenewable energy sources are environmental pollution and dwindling supplies.
What are are two major issues with our reliance on nonrenewable energy sources?
Environmental pollution and dwindling supplies are two major issues with our reliance on nonrenewable energy sources because burning of fossil fuels release carbondioxide which is a pollutant. This fuel is present in limited countries but its consumption is very high. Sometimes they can't match the demand.
So we can conclude that the two major issues with our reliance on nonrenewable energy sources are environmental pollution and dwindling supplies.
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Choose one of the technologies for altering the genetic code of organisms to focus
Selective Breeding
Natural Selection
Genetic Engineering
Gene Therapy
Assignment: Write a paragraph answering the following questions:
Which technology was chosen?
Explain how this technology alters the genetic code.
Explain the benefits of using this technology.
Explain the possible challenges of using this technology.
Remember to write in 3rd person, complete sentences
Answer:
Explanation:
enetic engineering, the artificial manipulation, modification, and recombination of DNA or other nucleic acid molecules in order to modify an organism or population of organisms. The term genetic engineering is generally used to refer to methods of recombinant DNA technology, which emerged from basic research in microbial genetics. The techniques employed in genetic engineering have led to the production of medically important products, including human insulin, human growth hormone, and hepatitis B vaccine, as well as to the development of genetically modified organisms such as disease-resistant plants.
Historical developments
The term genetic engineering initially referred to various techniques used for the modification or manipulation of organisms through the processes of heredity and reproduction. As such, the term embraced both artificial selection and all the interventions of biomedical techniques, among them artificial insemination, in vitro fertilization (e.g., “test-tube” babies), cloning, and gene manipulation. In the latter part of the 20th century, however, the term came to refer more specifically to methods of recombinant DNA technology (or gene cloning), in which DNA molecules from two or more sources are combined either within cells or in vitro and are then inserted into host organisms in which they are able to propagate.
The possibility for recombinant DNA technology emerged with the discovery of restriction enzymes in 1968 by Swiss microbiologist Werner Arber. The following year American microbiologist Hamilton O. Smith purified so-called type II restriction enzymes, which were found to be essential to genetic engineering for their ability to cleave a specific site within the DNA (as opposed to type I restriction enzymes, which cleave DNA at random sites). Drawing on Smith’s work, American molecular biologist Daniel Nathans helped advance the technique of DNA recombination in 1970–71 and demonstrated that type II enzymes could be useful in genetic studies. Genetic engineering based on recombination was pioneered in 1973 by American biochemists Stanley N. Cohen and Herbert W. Boyer, who were among the first to cut DNA into fragments, rejoin different fragments, and insert the new genes into E. coli bacteria, which then reproduced.
Process and techniques
Most recombinant DNA technology involves the insertion of foreign genes into the plasmids of common laboratory strains of bacteria. Plasmids are small rings of DNA; they are not part of the bacterium’s chromosome (the main repository of the organism’s genetic information). Nonetheless, they are capable of directing protein synthesis, and, like chromosomal DNA, they are reproduced and passed on to the bacterium’s progeny. Thus, by incorporating foreign DNA (for example, a mammalian gene) into a bacterium, researchers can obtain an almost limitless number of copies of the inserted gene. Furthermore, if the inserted gene is operative (i.e., if it directs protein synthesis), the modified bacterium will produce the protein specified by the foreign DNA.
A subsequent generation of genetic engineering techniques that emerged in the early 21st century centred on gene editing. Gene editing, based on a technology known as CRISPR-Cas9, allows researchers to customize a living organism’s genetic sequence by making very specific changes to its DNA. Gene editing has a wide array of applications, being used for the genetic modification of crop plants and livestock and of laboratory model organisms (e.g., mice).
The correction of genetic errors associated with disease in animals suggests that gene editing has potential applications in gene therapy for humans. Gene therapy is the introduction of a normal gene into an individual’s genome in order to repair a mutation that causes a genetic disease. When a normal gene is inserted into a mutant nucleus, it most likely will integrate into a chromosomal site different from the defective allele; although this may repair the mutation, a new mutation may result if the normal gene integrates into another functional gene. If the normal gene replaces the mutant allele, there is a chance that the transformed cells will proliferate and produce enough normal gene product for the entire body to be restored to the undiseased phenotype.
Applications
Genetic engineering has advanced the understanding of many theoretical and practical aspects of gene function and organization. Through recombinant DNA techniques, bacteria have been created that are capable of synthesizing human insulin, human growth hormone, alpha interferon, a hepatitis B vaccine, and other medically useful substances. Plants may be genetically adjusted to enable them to fix nitrogen, and genetic diseases can possibly be corrected by replacing dysfunctional genes with normally functioning genes.
Which two statements describe organ systems working together to remove
wastes from the body?
. A. The digestive system breaks down food into molecules that can
move into the blood.
- B. The circulatory system carries oxygen-rich blood into muscles in
the legs.
0 C. The integumentary system gives off thermal energy that comes
from blood vessels.
. D. The respiratory system exhales carbon dioxide that enters the
lungs from blood vessels.