Answer:
Dark Energy, Dark Matter
In the early 1990s, one thing was fairly certain about the expansion of the universe. It might have enough energy density to stop its expansion and recollapse, it might have so little energy density that it would never stop expanding, but gravity was certain to slow the expansion as time went on. Granted, the slowing had not been observed, but, theoretically, the universe had to slow. The universe is full of matter and the attractive force of gravity pulls all matter together. Then came 1998 and the Hubble Space Telescope (HST) observations of very distant supernovae that showed that, a long time ago, the universe was actually expanding more slowly than it is today. So the expansion of the universe has not been slowing due to gravity, as everyone thought, it has been accelerating. No one expected this, no one knew how to explain it. But something was causing it.
Eventually theorists came up with three sorts of explanations. Maybe it was a result of a long-discarded version of Einstein's theory of gravity, one that contained what was called a "cosmological constant." Maybe there was some strange kind of energy-fluid that filled space. Maybe there is something wrong with Einstein's theory of gravity and a new theory could include some kind of field that creates this cosmic acceleration. Theorists still don't know what the correct explanation is, but they have given the solution a name. It is called dark energy.
The flora (plants) and fauna (animals) found on the bottom of any body of water are called what?
Answer:
the answer to the question is Epifauna also called epibenthos
Explanation:
any organism plant or animal that lives in the bottom of a body of water is classified as Epifauna
Which US state featured in the map is most likely to lose its forests due to mining?
Answer:
California
Explanation:
I took this test on Plato
California US state featured in the map is most likely to lose its forests due to mining
What is mining ?
Mining shows negative and positive impact on the envrionment but negative impacts are higher than positive impact on the environment.
Mining activities such as mine discovery, exploration, construction, operation, maintenance, expansion, abandonment, decommissioning and conversion can have a variety of direct and indirect impacts on social and environmental systems.
Land-use changes can result from mine exploration, construction, operation, and maintenance, and these changes can have adverse effects on the environment.
For example, deforestation, erosion, contamination of nearby streams and wetlands, soil profile changes, noise, dust and increased emissions can occur.
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Nutrition experts recommend that most people eat less than 2,300 milligrams of sodium a day for good heart health. What percentage of this limit did you consume by eating these three foods? Are you surprised by this total? Explain your response. Plato
Explanation:
Sodium intake is important to health and most importantly, it is important to the heart. But excess sodium can lead to serious health issues. Therefore, the intake of sodium should be limited.
As per American Heart Association, an average American consumes more than 3400 mg sodium per day in their food. But the consumption must be limited to 2300 mg.
I am very much surprised to know that I consumed a lot more than this limit of sodium in my daily diet. I take up nearly 200 % of sodium intake. I am surprised by this and very much worried. If I continue to take sodium like this, it will have ill affects on my heart. So, I need to reduce my intake to less than 2300 mg of sodium a day. And also I need to do some cardiovascular exercise regularly.
Answer:
I ate 54% of the daily recommendation just from the pizza. I’m surprised, because even though pizza is a little salty, I didn’t realize it contained that much sodium.
Explanation:
Awnser form PLATO sample
name the one ozone depleting substances which is used as a coolant i the refrigerators and air- conditioning
Answer:
cloro Floro carbon(cfc)
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Answer:
Chlorofluorocarbon (CFC)
Explanation:
Released when refrigerators are made, and even released when a refrigerator is cooling things stored in it.
Chlorofluorocarbon contains
ChlorineFluorine And CarbonWhen Chlorine and Oxygen( the oxygen found in the ozone) react together, the ozone or the shield that blankets the earth from dangerous rays such as the UV ray will be put in danger.
Which of the following is a characteristic of electromagnetic waves?
Answer:
A
Explanation:
they are invisible yeah
Answer:
B
Explanation:
You are carefully examining a living organism. Which of the following should convince you that the organism is acoelomate? You are carefully examining a living organism. Which of the following should convince you that the organism is acoelomate? It has bilateral symmetry. It is triploblastic. Muscular activity of its digestive system distorts the outer body wall. It possesses sensory structures at its anterior end.
Answer:
Muscular activity of its digestive system distorts the outer body wall.
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Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle. List the Independant, Dependant and Control variable (constant
Answer:
independent- the students
dependent- the time
constant- the jigsaw puzzle
Explanation:
How might you model the relationship between a tomato plant and the hornworm caterpillar? Identify the components of the model including inputs and outputs
Answer:
Parasitism.
Explanation:
The relationship between a tomato plant and the hornworm caterpillar is parasitism because parasitism is a type of symbiotic relationship in which one organism get benefits and the other get harmed. We know that hornworm caterpillar feed on leaves and destroy the tomato crop. So it gets nutrients from tomato plant and the tomato plant is negatively affected. The input of this system is the vegetative part of tomato plant while the output is the conversion of hornworm caterpillar into a moth.
During breeding season, the sight of a red belly on a male stickleback fish will trigger an antagonistic response in other males. This is an example of
Answer:
fixed action pattern
Explanation:
This is an example of a fixed action pattern. This is an ethological term that describes an instinctive behavior sequence that is highly stereotyped and species-characteristic due to it happening in the same manner countless times in a predictable cycle. These fixed action patterns are innate mechanisms triggered by a specific stimulus or releaser, which in this scenario is the sight of a red belly.
A form of exercise that involves short, intense bursts of energy; anaerobic exercise can only be maintained for 1–2 minutes, slightly longer through specific anaerobic training. Anaerobic exercises are generally used to build muscle mass, increase muscular strength, speed and power, for example sprinting (running, cycling, swimming, etc), and bodybuilding.
A. Anaerobic Exercise
B. Aerobic Exercise
Answer:
A). Anaerobic Exercise.
Explanation:
Anaerobic Exercise is characterized as the exercise that aims to break down glucose without making use of oxygen. Such exercise involves short, quick, and intense bursts of energy with maximum efforts. This leads to the body needing immediate energy(except oxygen) to fuel itself that eventually leads to the break down of glucose. This exercise primarily aims to 'build the mass of the muscles or enhance the muscular strength, through short and intense workouts involving jumping, sprinting, running, cycling, etc. Therefore, option A is the correct answer.
2. Give an example of a question someone might ask to start a descriptive investigation.
Answer:
Classification of trees in a forest is an example of a descriptive investigation
Explanation:
A descriptive investigation is aimed at describing/quantifying the characteristics of a given population or natural system. In descriptive research, the characteristics of the system are classified into descriptive categories. This type of investigation does not involve causal associations where a variable is tested to see if it will affect other variables. Examples of descriptive research include the classification of chemical elements in a periodic table, observing human social behavior under extreme conditions, etc.
Which step is shown?
transpiration
translocation
transcription
translation
The given question is incomplete, and as there is two steps present in protein synthesis, attaching the the image related the question to answer.
Answer:
The correct answer is : translation.
Explanation:
Translation is the second essential step of the central dogma or the protein synthesis process that is takes place in the ribosomes of the cell, Ribosome reads decode the codon, a sequence of 3 sequence. tRNA comes with the anticodon to the codons that are present on ribosome in order to bind the amino acids to it.
The amino acid that was brought by the tRNA is detaches itself as it bind to the polypeptide chain forming on ribosome to create polypeptide chain, this process repeats itself up-to the stop codon.
Thus, the correct answer is : translation.
Answer:
translation
Explanation:
Based on fossil evidence about how long ago did the first single-cella’s life from appear on earth
Answer:slat
Explanation:
Slat rat
Define negative feedback of homeostasis
Answer:
A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
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TRUE or FALSE. Tofu or other soy protein substitutes are TCS foods.
Answer:
FALSE!!
Explanation:
Pour water into a large metal bowl.Put the bowl in the freezer .Wait two hours and observe the bowl. Describe the formation of ice in the bowl in your observation area.
Answer:
Solid with air bubbles?
Explanation:
assuming that you are expected to but your bowl of water in the freezer flat or you decide to, It most likely is going to be a solid block of ice with a few air bubbles in it just like if you were to freeze water standing up it would have little to no air bubbles in it.
Which of the following processes is likely to occur in the leaves of a plant exposed to an atmospheric oxygen level of only 1% or 2%? a. hypoxia b. transpiration c. aerobic respiration d. anaerobic respiration
Answer:
A). Hypoxia.
Explanation:
Hypoxia is characterized as the condition in which tissues are deprived of an adequate supply of oxygen. As per this definition, hypoxia would be the process that is most likely to occur in the plant's leaves when it is revealed to a minimum level of 1 or 2% of oxygen. The lack of oxygen in such states reaches the tissues. One of the advanced stages of this process is 'anoxia; where there is a complete absence of 'oxygen' that enhances the ecological stress. Thus, option A is the correct answer.
Answer: aerobic respiration
Explanation: edg 2021
"How many bubbles would both plants produce at the following depths: - 13 meters, 20 meters, 28 meters"
Answer:
39, 45
27, 42
6, 7
Explanation:
In 13 meters depth, there are 39 bubbles produced per plant in one minute and 45 bubbles are formed per plant in one minute. In the depth of 20 meters, there are 27 bubbles produced per plant in one minute and 42 bubbles are formed per plant in one minute. In 28 meters depth, there are 6 bubbles produced per plant in one minute and 7 bubbles are formed per plant in one minute.
How does the shape of an enzyme affect the reaction
Answer:
The shape of the enzyme determines which chemical reaction it will speed up.May strain the bonds of the substrate or put chemical groups of the active site in the correct position to speed up the reaction.
Which of the following best describes a population?
A. members of the same species living in the same
place at the same time
B. all the red birds in an area
C. all types of organisms living in the same place
D. all members of the same species
The following best describes a population - A. members of the same species living in the same place at the same time.
A population is a group of individual organisms of the same species in a given area. A population is defined as a group of individuals of the same species living and interbreeding within a given area.
Members of a population that depend on the same resources such as food or habitat are subject to similar environmental conditions and others.The population is the number of individual species of people or animals in a particular place at a particular time.An example of a population is over eight million people living in New York City.Thus, the following best describes a population - A. members of the same species living in the same place at the same time.
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The desire to improve people's lives is a strong motivator for innovation in science , technology , and medicine . A good scientist need traits to fill the purpose of understanding the world and making . Fill the concept map with the correct terms .
A good scientist is:
Curious about the world and its mysteries, and must observe carefully.
A skiptic who demands evidence before accepting explanations.
Bias and willing to change if need be, and does not let hypothesis or personal point of view influence them,
Oppen-minded and thoughtful in proposing creative and designing experiments.
Cigarette smoke contains a chemical that specifically mutates p53 and inactivates it. As a result of this mutation, what would happen in the affected cells? A.DNA damage would accumulate B. Cell death would not be activated C.The cell cycle would continue in spite of DNA damage D.All of the above
Answer:
The correct answer is - option D. all of the above.
Explanation:
Smoking cigarettes or consumption of tobacco contains chemical that is responsible for the mutating p53 gene specifically which inactivates the action of p53.
TP53 mutation changes the amino acid in the p53 protein which produces the altered or modified version of protein that is incapable of performing its action of repairing damaged DNA during cell cycle for genome stability. DNA damage would be accumulate as it is not able to control the cell division by apoptosis and cell death would not be activated.
Thus, the correct answer is - option D.
Which of the qualities listed below explain why certain organisms are classified as indicator species
Answer:
Indicator species, organism—often a microorganism or a plant—that serves as a measure of the environmental conditions that exist in a given locale. ... For example, greasewood indicates saline soil; mosses often indicate acid soil. Tubifex worms indicate oxygen-poor and stagnant water unfit to drink.
An amplified recording of the waves of electrical activity that sweep across the surface of the brain is called a(n):_______
Answer:
An amplified recording of the waves of electrical activity that sweep across the surface of the brain is called a(n):(EEG) electroencephalogram
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I hope you and your family are staying safe and healthy!
An amplified recording of the waves of electrical activity that sweep across the surface of the brains is called an EEG
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What is the controversy behind banning oxo-biodegradables?
Answer:
Oxo-biodegradables do not meet international biodegradation requirements, which has caused the authorities to prohibit their use, contrary to their formulators who defend their benefits in the environment.
Explanation:
Oxo-biodegradables are a type of plastic that can be broken up into tiny pieces, but that is not biodegraded by the action of nature. In this case, this type of plastic does not meet international biodegradation requirements, in addition, it can cause pollution, as its mini particles can affect rivers, soils, crops, in addition to being dispersed in the air and being eaten by animals.
The great controversy is that the creators of this type of plastic defend their benefit in the environment, however the authorities, considering the polluting potential of oxo-biodegradables, prohibited its use.
Determine the correct sequence of events during the creation of recombinant DNA. I. Plasmid is cut open with enzymes II. Target gene is cut out with enzymes III. Plasmid is inserted into the bacterium IV. Target gene is bonded to the plasmid with Ligase
A. IV, III, I, II
B. II, I, IV, III
C. IV, I, II, III
D. I, II, III, IV
Answer:
The correct answer should be choice B if I'm going about this the right way.
The correct sequence is as follows:
II. Target gene is cut out with enzymes
I. Plasmid is cut open with enzymes
IV. Target gene is bonded to the plasmid with Ligase
III. Plasmid is inserted into the bacterium
Genetic engineering, also known as genetic manipulation, is the use of recombinant DNA to change the genetic makeup of organisms. In the creation of a recombinant DNA, which is usually a plasmid + desired gene, the following processes are employed:1. The target or desired gene is initially cut out using enzymes called restriction enzymes.
2. The plasmid (extrachromosomal DNA) from a bacterium is then cut open.
3. Ligase enzyme is used to bond the target gene or gene of interest with the plasmid.
4. After bonding, the plasmid is inserted into a bacterium to multiply.
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You’ve isolated a mutant defective in meiosis that displays unpaired homologous chromosomes in meiosis I. For this mutant, what do you predict the wild type gene encodes?
I need to know this answer can you help ?
brain, nervous system, neuron, and a collection of neurons, what is their order from simplest to most complex?
Answer:
yes
Explanation:
WELP!!! I need help... I will give out brainliest and a Thank you. Thanks! I also gave some extra points
An asteroid is falling toward planet Earth from space. It has a height of 100,000 km. As the asteroid falls closer to the Earth's surface, its _______ energy decreases and its _______ energy increases.
Answer:
Potential Energy Decreases while kinetic energy increases
Explanation:
Answer:
gravitational potential; kinetic
Explanation:
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