the red shift of light from distant galaxies provides evidence that these galaxies
The red shift of light from distant galaxies provides evidence that these galaxies are increasing in distance from the earth. Option D
What is the implication of the red shift of light?The red shift of light from distant galaxies is an indication that that these galaxies are moving away from us.
This is because the red shift is caused by the Doppler effect, tells of the change in the frequency of a wave due to the relative motion of the source and the observer.
In a situation of light from distant galaxies, the source is moving away from us, which causes the light to be red shifted.
The answer above is dependent on the full question below;
The red shift of light from distant galaxies provides evidence that these galaxies are A.) decreasing in size B.) increasing in size C.) decreasing in distance from the earth D.) increasing in distance from the earth
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Why do onion skin cells have little or no chloroplasts? Explain.
Answer: The chloroplasts are filled with a special green chemical (pigment) called chlorophyll. This green pigment helps the cell trap light energy for photosynthesis. Onion cells are not green. They get no light, so do not need chloroplasts.
HOPE THAT HELPED
SOMEONEEEEEE PLEASE HELP ILL GIVE 20 POINTSZ!
Answer:
YOU SAID 20 POINTS AN DYOU GIVEN ME 5 HUN NO THANK YOU BYE
Explanation:
ANSWER;20
What is a pill bugs habitat
Answer:
The pillbug's main habitat is under mulch, fallen leaves, and rocks. Pillbugs are nocturnal and require humid conditions during the day. Pillbugs are generally found in soil with sowbugs, millipedes, and earthworms. Their preferred soil habitat is composed of organic matter and has a neutral to alkaline pH.
A
В
с
Which container has the least concentration of solutes?
O A
OB
О с
OD
Answer:
c
Explanation:
its c i took the test
The question is above
Hello there! :D
Yes, biology! Love getting some cool science questions. :)
Let's start by reviewing the context of the question:
We know that all living things grow, and that multicellular and unicellular organisms do so in different ways.
How do multicellular organisms grow?
We go through a process called Mitosis for Somatic (body cells), and Meiosis for Gametes (ovum and sperm). We do this to grow and to procreate. Humans are multicellular, so is your dog, Barry B. Benson, and all the beautiful flowers and trees that you see outside in the spring time.
Second question, ya like jazz? Nah, haha. How do unicellular organisms grow?
They grow through expansion! Their only cell grows until it reaches maturity and it begins to split (divide) to form more unicellular organisms. An example of a unicellular organism that does this is yeast, which is in most bread.
Now that we have our context, we can answer this question. What is the topic we talked about this most in covering context? Cell divison!
The answer choice that covers this topic the best is answer "A".
I hope this helps you and you have a wonderful day,
Kai xx
Describe the difference between vitreous humor and aqueous humor.
Answer:
Vitreous humor does not replenish while aqueous humor does.
Explanation:
Seeds are reproductive or not ?
Answer: Yes
Explanation: Monocots produce one cotyledon, while dicots produce two. Because seeds are reproductive structures and thus important to a species' survival, plants have evolved many mechanisms to ensure their survival. One such mechanism is seed dormancy. Dormancy comes in two forms: seed coat dormancy and embryo dormancy
Answer:Plants that reproduce by seeds. Seed plants have special structures on them where male and female cells join together through a process called fertilisation. After fertilisation, a tiny plant called an embryo is formed inside a seed.
A river that has flowed for a longer period of time will erode more rock than a river that has flowed over rock for less time
True or false
true because if the river has flowed longer its probably bigger and flows stronger
Most plants have what type of photoperiodism?
short-day plants, long-day plants, and day-neutral plants.
Flowering is the most well-studied manifestation of photoperiodism in plants, additional reactions to day length include bud dormancy and bulb or tuber initiation.
What is photoperiodism?Long-day vegetation Long-day plants (LDP) and short-day plants are the two terms used to describe plants that require longer exposure to light. Short-day plants (SDP) or Day Neutral Plants are those that require less exposure to light.
Positive and negative phototropism are the two varieties. Positive phototropism is the growth in the direction of a light source, whereas negative phototropism is the growth in the opposite direction.
Therefore, negative phototropism is a characteristic of plant roots that arise from the necessity for them to stoke deeper roots for the plant's stability, water, and nutrients.
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Which of the following statements about feedback regulation of a metabolic pathway is correct?
A) The compound that regulates the pathway acts as a competitive inhibitor or a positive allosteric regulator.
B) The enzyme that is regulated by feedback inhibition is usually the last enzyme in the metabolic pathway.
C) The final product of a metabolic pathway is usually the compound that regulates the pathway.
D) The products of the pathway become the reactants for a different reaction, and thus products are unable to accumulate.
E) Accumulation of the product of the pathway increases further formation of that product.
Answer:
Correct answer is: B) The final product of a metabolic pathway is usually the compound that regulates the pathway.
Explanation:
Feedback regulation of a metabolic pathway is a mechanism by which the end product of a pathway inhibits an enzyme that catalyzes an early step in the pathway, thus preventing the overaccumulation of the product. This is an example of negative feedback, which maintains homeostasis and optimizes the efficiency of the pathway.
For example, in the synthesis of the amino acid isoleucine from threonine, the final product isoleucine binds to the allosteric site of the first enzyme in the pathway, threonine deaminase, and inhibits its activity. This reduces the rate of the pathway and prevents the excess production of isoleucine.
Describe the mechanism of glycolysis in detail
The process of Glycolysis is a catabolic process in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .
Mechanism Of Glycolysis
The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol
Preparatory phase refers to the generation of two molecules of glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .
Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate .
Both the phases of glycolysis takes place in the cytoplasm and there are three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .
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What enzyme breaks down starch in your saliva?
pepsin
trypsin
lipase
amylase
Answer:
D
Explanation:
It is the amylase, or rather alpha-amylase
Which process moves water molecules across the membrane of a cell?
E)))
A
diffusion
B)
endocytosis
Eliminate
a
exocytosis
D)
osmosis
Structures and Functions of Cells
Answer:
Osmosis is the diffusion of water molecules, from a region of higher concentration to a region of lower concentration, through a partially permeable membrane.
thus the answer is osmosis ( D)I need this now pleaseee
In your on word write a sentence describing a situation between 2 people and then rephrase to show empathy
Minerals substansces needed for bone development __________ and ____________
Answer: calcium and phosphorus.
Explanation: Both calcium and phosphorus work together to support bone health and development. Consuming a balanced diet rich in calcium and phosphorus, along with regular physical activity, can help promote optimal bone growth and prevent conditions like osteoporosis later in life.
Calcium is an essential mineral that plays a vital role in building and maintaining strong bones. It is the primary component of bone tissue, providing strength and structure. Adequate calcium intake is crucial for bone growth, especially during childhood and adolescence.
Phosphorus is another mineral that is important for bone development. It works in conjunction with calcium to form the mineralized matrix of bones. Phosphorus helps in the formation of hydroxyapatite, which is a mineral complex that gives bones their strength and hardness.
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Why humans cannot impact one of earths ststems without impacting the others
Earth's systems are interconnected, and what happens in one system can have an impact on the others like, if humans pollute the air, this can lead to climate change, which can then impact the water system.
How does human activities impact Earth's systems?Deforestation: Deforestation is the clearing of trees from an area of land. This can lead to soil erosion, which can pollute waterways and disrupt the water cycle. Deforestation can also impact the climate, as trees absorb carbon dioxide from the atmosphere.
Pollution: Pollution is the release of harmful substances into the environment. This can come from a variety of sources, including factories, cars, and power plants. Pollution can impact the air, water, and land, and can also harm human health.
Overfishing: Overfishing is the harvesting of fish at a rate that exceeds their ability to reproduce. This can lead to the depletion of fish populations, which can have a ripple effect on the entire food chain.
Climate change: Climate change is a long-term change in the Earth's climate. This can be caused by a number of factors, including human activities such as the burning of fossil fuels. Climate change can impact the Earth's systems in a variety of ways, including by causing more extreme weather events, rising sea levels, and changes in plant and animal life.
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which choice describes the flow of energy in a food chain?
a. grass - rabbit - wolf - sun
b. wolf - sun- grass- rabbit
c. sun- grass-rabbit-wolf
d. rabbit - wolf -sun - grass
Answer:
C.
Explanation:
c. sun- grass-rabbit-wolf
Answer:
C
Explanation:
sun- grass-rabbit-wolf
Sun makes grass grow, rabbits eat grass, and finally wolves eat rabbits.
what is the function of every generator
on Earth?
Answer:basically changing mechanical energy into electrical energy
Explanation:
A scientific theory can come from
Answer:
A scientific theory can come from observations, experiments, and evidence gathered through research. It is a well-substantiated explanation of some aspect of the natural world based on empirical evidence and has been repeatedly tested and confirmed through observations and experiments. The scientific method is typically used to develop and test scientific theories. It involves making observations, asking questions, formulating hypotheses, testing them through experiments, and analyzing the results to conclude.
Explanation:
A scientific theory can come from observations, experiments, and data analysis. It is based on a body of evidence and has predictive power.
Explanation:A scientific theory can come from observations, experiments, and data analysis. It is a well-substantiated explanation of some aspect of the natural world that is based on a body of evidence. Theories in science are supported by empirical evidence and have predictive power.
For example, the theory of evolution in biology is supported by evidence from the fossil record, genetics, comparative anatomy, and other fields. It explains the diversity of life on Earth and makes predictions about the relationships between different species.
In physics, the theory of relativity explains the relationship between space, time, and gravity. It has been tested through experiments and observations, demonstrating its accuracy.
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Explain to your client at the water purification plant what the cause of the increased number of bacteria in the water is. Make sure to include the evidence you used to reach your conclusions. Your response should include a minimum of five complete sentences.
Answer:
Water purification, process by which undesired chemical compounds, organic and inorganic materials, and biological contaminants are removed from water. Water purification provides clean drinking water and supplies treated water for domestic, industrial, medical, and pharmacological uses.
Explanation:
searched online
which is a result of increasing acidity of seawater?
A: algae population increase dramatically
B:Coral expel algae living with them
C: shells and skeletons of marine organisms weaken
The bones and shells of marine species may become more brittle as seawater's acidity rises. This is because the ocean becomes more corrosive as a result of the acidification process, which makes it possible for these species' calcium carbonate structures to break down.
As seawater absorbs carbon dioxide from the atmosphere, a process known as "ocean acidification" causes seawater's pH to fall. The chemical reaction between carbon dioxide and water, which results in the production of carbonic acid, is to blame for this.
The health and survival of marine species may be significantly impacted if the ocean's acidity rises.
Many marine animals use calcium carbonate to construct their shells or skeletons, including mollusks, corals, and some plankton. A mineral with a high sensitivity to pH fluctuations is calcium carbonate.
The concentration of hydrogen ions in the water rises with increasing ocean acidity, which can disintegrate the calcium carbonate structures of these creatures.
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Mr Mwape and his wife are both heterozygous tall and brown and have 3 children who are tall and brown and one child who is short and dark what explanation can you give mr Mwape to understand variation in his children?
We can explain Mr Mwape that variation in his children through Mendel’s law.
Reason why three children tall and brown one of MR Mwape was short and dark is: -
• Skin color and height is controlled by a lot of genes and every human gets one set of genes from their mother and the other set of genes from their father.
• Now imagine these genes are denoted as ‘T’ for tall and ‘B’ for brown and ‘t’ for short ‘b’ brown. We can assume that MR Mwape and his wife having genotype TtBb.
• During the process of gene segregation and assortment, the majority percentage of children got the heterogenous dominant genotype, which is ‘TtBb’, overlapping the effect of gene ‘t’ and ‘b’. While another child got a homogenous recessive genotype ‘ttbb’ from both the parents, hence the genotype is prominently shown in the fourth child and not in other as gene 't' and 'b' were dominated by genes 'T' and 'B'.
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Below is a sequence of a normal gene and the same gene in a person with cancer.
Known Gene CCTCGTGGCTGCTGGGAG
Gene in a person CCTCGTGGGCTGCTGGGAG
with cancer
Image retrieved from GA milestone practice questions
What type of mutation is seen in the DNA strand of the person with cancer compared to the
known gene?
O A. Insertion
O B. Deletion
OC. Substitution
OD. Translocation
Carlton and Vanessa are lab partners in their biology class. One of their labs was to run the smell test experiment on each other.
When performing the smell test, Vanessa was quite good at noticing a difference between the various intensities of vanilla and also
the various intensities of evergreen. Although Carlton could distinguish what the vanilla and evergreen smells were, he couldn't tell
there was a difference in the intensities in the vanilla or the evergreen. Based on the information presented in this scenario, which
of the following is true?
Vanessa has a more sensitive difference threshold than Carlton.
Carlton has an impaired absolute threshold.
Vanessa has a better absolute threshold than Carlton.
Carlton has the superior performance with respect to the difference threshold.
Vanessa has an impaired absolute threshold.
Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.
Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.
Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.
Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.
The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.
Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.
This shows that Carlton has an impaired absolute threshold.
He could not detect the smallest quantity of a stimulus to differentiate between the smells.
Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.
This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.
Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.
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A series of experiments were conducted on the motor areas of monkey brains in an attempt to discern how they
controlled movements in the body. At the time there was debate between two prevailing theories. The first was
that there was a one to one involvement between the motor neurons in these regions stimulating individual
muscles. The second theory instead stated that stimulation of these areas produced specific movements, rather
than merely just stimulating individual muscles.
1. Which theory is supported by the observation that stimulation of a single motor neuron in the
primary motor cortex resulted in opposition of the left hand? Explain your answer.
2. What is the significance of the necessity to be stimulating only a single cortical motor neuron in
order to come to this conclusion?
The theory that is supported by the observation that stimulation of a single motor neuron in the primary motor cortex resulted in opposition of the left hand is the second theory.
This is because the observation suggests that stimulation of the motor areas of the brain does not necessarily result in the activation of a single muscle, but rather the production of a specific movement.
In this case, the specific movement was the opposition of the left hand, rather than the activation of a specific muscle group. This supports the second theory that stimulation of the motor areas produces specific movements rather than just the activation of individual muscles.
The significance of the necessity to be stimulating only a single cortical motor neuron in order to come to this conclusion is that it helps to identify the specific area of the brain responsible for the movement.
By stimulating only a single motor neuron, researchers were able to pinpoint the exact location in the primary motor cortex that was responsible for the specific movement of the opposition of the left hand.
This information is important because it helps to better understand the neural circuitry involved in movement control and could have implications for the development of treatments for movement disorders.
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Which of the following statements reflects a cognitive characteristic that is present during late adulthood?
A.
During late adulthood, one is full of knowledge and wisdom.
B.
During late adulthood, one pursues new challenges.
C.
During late adulthood, one reflects on changes and mortality.
D.
During late adulthood, one has a better sense of identity.
answer is a!! just took it on edg
The phrase, "During late adulthood, one is full of knowledge and wisdom," describes a cognitive trait that is prevalent at that stage of life, hence option A is correct.
What is a cognitive characteristic that is present during late adulthood?An immersive and active procedure that actively involves your senses in a positive and long-lasting way may be described as having cognitive features.
In late adulthood, cognitive traits let you use your brain's full capacity and make it simpler to connect new ideas and facts.
Therefore, the phrase "During late adulthood, one is full of knowledge and wisdom" indicates a cognitive quality that is present at that age, hence option A is correct.
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I need help with this practice problem solvingThe topic is Kudzu/Our planet My practice for use in the picture below
Kudzu is a Japanese vine of the family of peas known to be an invasive plant in North America.
This plant grows horizontally by runners and rhizomes, its vine roots where it comes in contact with the ground and creates new plants.
The growth rate of this plant is about 30 feet per day, which is why it can cover large areas in a rela-tivelly short time period. This vine covers the native plants and trees covering the sun and air, which smothers and suffocates them. Since it is an invasive species, for example in the US, it does not have natural predators and outcompetes the native species for resources. As it competes with the native species, it disrupts the food chain because it threatens the plants that animals use for food and shelter and its roots modify the amount of water and nutrients that are in the soil.
This plant releases the chemicals isoprene and nitric oxide that when combined with the nitrogen of ozone can cause health troubles for humans.
Imagine you have collected data on the temperature and dissolved oxygen (mg/L) in a eutrophic lake over 5 years. You want to see if dissolved oxygen varies with temperature in this lake. What statistical test would you do? Explain why you chose this test.
2. Imagein the Biology department needs to decide which lab curriculum yeilds better student outcomes. Five sextions are assigned to curriculum A, and five sections are assigned to curriculum B. All sections are administered a pre- and post-test that measures students’ attitudes toward science and knowledge of biology. The department wants to see if students’ gains are greater in one curriculum or the other. What statistical test should be done to determine if there is a significant difference? Explain why you chose this test.
Answer:
1. Temperature Vs dissolved oxgen in eutrophic lake: Temperature and dissolvec oxygen are two variables given which changes with time. To test the relationship between 2 variables, we can use correlation and regression and statistical T test.
Correlation between 2 variables is determined by correlation coefficient r, whose value lies between +1 to -1. Correlation is the measure of linear relationship between variables.If we get non-zero value in correlation, the relationship can be further tested with statistical T test. This test is done to check whether the correlation is significant. If the null hypothesis is rejected at p value of 0.05, the correlation is considered significant.To get precise relationship between 2 variables, we use linear regression. It gives a straight line graph for 2 variables.Correlation coefficient tells how much one variable change with respect to the change in another variable. The regression straight line is used to predict the value of dependent variable from the value of independent variable.
2. Measure of student attitude in field of science and knowledge by pre and post test in curriculum A and curriculum B:
We can use T test to determine the differencesCalculate the difference in gains for each student in their post and pre exams in both curriculums. (Gain in post- test ) minus ( gain in pre-test) for both curriculumsCalculate mode values of the of the above 2 test on curriculum and find out the highest mode.Perform a unpaired T test to find out significant difference in post and pre exams of curriculum.Unpaired T test is the T test of 2 independant variables which predicts the significant difference.Learn more about eutrophic lake
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Which mineral resource is used to make batteries? graphite gypsum talc clay
Answer:
graphite
Explanation:
graphite is a mineral resource used to make batteries
Graphite is the mineral that is frequently utilized to create batteries. So, the correct option is A.
What is Graphite?A crystalline form of carbon that is found in nature is called graphite. Due to its special qualities, this mineral, which is exceptionally smooth and slippery, is frequently employed in a variety of applications. Due of its propensity to create a trace on paper, graphite is one of the materials that is most frequently found in pencils.
In addition to being used in pencils, graphite is also employed in lubricants, nuclear reactor moderators, batteries, and other electrical devices as electrodes. It is a good heat- and electricity-conductor and is generally chemically stable. Graphite is frequently obtained either open pit mines or underground mines and is typically found in metamorphic rocks.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Which mineral resource is used to make batteries?
graphite gypsum talc clay