Answer:
In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products
Explanation:
1. Which radioisotope of carbon is used in carbon dating?
a. Carbon-12
b. Carbon-14
c. Carbon-13
d. Carbon 12 and 14
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Answer:
d is the answer
Explanation:
i took the test and it was d\
Answer:
d. Carbon 12 and 14
Explanation:
I have another one. This one is just one answer.
D its D your welcome.
How does a rock change into a metamorphic rock?
A. evaporation
B. cementation and compaction
C. heat and pressure
D. cooling of magma
Answer: C
Explanation:
Any rock (igneous, sedimentary, or metamorphic) can become a metamorphic rock. If rocks are buried deep in the Earth at high temperatures and pressures, they form new minerals and textures all without melting. If melting occurs, magma is formed, starting the rock cycle all over again.
Answer:
C
Explanation: The heat and pressure changes the rock into a different type of rock such as igneaous, metamorphic, and sedimentary.
is it true that both photosynthesis and cellular respiration use the same substances as reactants in their processes
Ocean water cannot be used to nourish land animals because
what are the functions of the parietal lobe
Explanation:
The parietal lobes can be divided into two functional regions. One involves sensation and perception and the other is concerned with integrating sensory input, primarily with the visual system. The first function integrates sensory information to form a single perception
Which of the following is expected to increase due to change climate?
O A. Sea level
O B. Land area
O C. Sea ice
O D. Freshwater
Answer:
sea level
Explanation:
seal level can higher tempratures
The global warming is the main cause of sea level rise. A warming climate can cause seawater to expand and ice over the land to melt. The Sea level rise due to the change of climate. The correct option is A.
What is sea level rise?The average increase in the water level of the earth's oceans due to the global warming caused by human activities which have increased the greenhouse gases in the atmosphere is defined as the sea level rise.
The gradual increase in the temperature of the earth which is commonly caused by the emission of greenhouse gases like carbon dioxide, chloro fluro carbon and other pollutants is known as the global warming.
The incredible increase in the temperature due to global warming resulted in an increase in the melting of glaciers which have led to an increase in the sea level.
Thus the correct option is A.
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Which statement correctly compares living things and nonliving things? A. Only living things are made of cells. B. Only nonliving things are made of cells. C. All living and all nonliving things are made of cells. D. All living and some nonliving things are made of cells.
Answer:
A. Only living things are made of cells
Explanation:
Non-living things do not have cells, and in order for something to be considered living, it must contain cells.
Answer:
Living Things
Explanation:
allosteric inhibitors change the shape of the enzyme
True or False
Answer:
T
Explanation:
Their binding induces a conformational change that reduces the affinity of the enzyme's active site for its substrate. The binding of this allosteric inhibitor changes the conformation of the enzyme and its active site, so the substrate is not able to bind.
In which part of the respiratory system are the alveoli found?
Answer:
The lungs.
Explanation:
Alveoli are mini-sacks of air located in the lungs. These tiny air sacs are responsible for driving air into your blood and taking in carbon dioxide from your blood simultaneously.
9. Which statement is supported by this diagram?
A)Sodium chloride is an element.
B)Sodium chloride is a mixture.
D)Sodium chloride is a compound.
C)Sodium chloride is composed of only one atom.
PLEASE HELP!!! What does the graph indicate about the relative acidity of the stomach and small intestine??
Answer:
That the stomach is more acidic than the small intestine.
Explanation:
If i understand the graph correctly, the graph indicates that the stomach is relatively more acidic than the small intestine. This Is because the data for the stomach (the blue line) is at the left side of the x-axis, from 1 to 5, while the data for the small intestine (the orange line) is more to the right, meaning that the small intestine has a higher pH. The higher the pH, the lower the acidity. So since the stomach has a lower pH, it has a higher acidity.
The stomach is more acidic than the small intestine.
The graph hows the pH of the small intestine and the stomach respectively. We know that the pH is a measure of the acidity or alkalinity of a substance. A pH value of 0 - 6.9 indicates acidity. 7 indicates a neutral substance while 8 - 14 indicates a basic substance.
We can see from the graph that the stomach is more acidic than the small intestine because it has a lower pH which indicates high acidity.
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Belle weighs 90 lbs on Earth. If she went to Mercury,
what would change, her mass or her weight? Why?
Answer:
Weight
Explanation:
Mass is the same no matter where, but weight ties in gravity so on Earth and Mercyry, one would weigh differently due to the differing gravitational pulls.
Answer:
her weight would change.
90 pounds (Earth weight) X 0.38 = 34.2 pounds (Mercury weight)
Explanation:
SThose that disputed the flat Earth theory countered the claim by observing that Christopher Columbus was able to sail around the Earth without falling off thcientific laws describe natural relationships that have been tested repeated
Answer:
Scientific laws describe natural relationships that have been tested repeatedly with successful and or accurate predictions. Scientific laws span all the subject areas of natural science which include:
astronomybiologyphysicschemistrygeoscienceScientific Laws are based on empirical evidence. They are not the same theories, hypotheses, and postulates even though they may be derived from the same. Hypotheses and Postulates which are tested repeatedly by the use of experiments and are shown to be true go on to become Laws.
Example of laws are
Archimedes' Principle of BuoyancyHooke's Law of ElasticityWhen a Law fails to hold up in the face of new data of evidence, it can be rescinded.
Cheers
7. A certain atom has an atomic number of four. How many protons does it have?
4
8
2
0
Answer:
4
Explanation:
An atom with atomic number of 4 will have a proton number of 4.
Atomic number is the number of protons in an atom. Therefore, when given the atomic number, it shows the number of protons in the atom.
The number of protons is the number of positively charged particles in the nucleus of an atom. The atomic number is used to arrange elements in their right position on the periodic table.what will happen to the concentrations of atp, nadph, and sugar when you add diuron.
Answer: its decreas for all of them
Explanation:
Cuz I did it lol
The application of diuron decreases the activity of ATP, NADPH, and sugar production.
What is diuron?Diuron is a powerful herbicide and algaecide that blocks the natural process of photosynthesis and inhibits the weed's ability to convert light energy into chemical energy.
It stops the process of photosynthesis by stopping the creation of oxygen and blocking the transfer of electrons from photosystem II in plants, which stops the electron transport chain from working properly.
In the long run, this causes a reduction in the amount of ATP, NADPH, and sugar that plants produce.
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Coral reefs are actually colonies of small polyps that each live within a hollow cylinder of calcium carbonate, which it excretes. Their tentacles extend above the top of this cylinder and sweep in small organisms and other food scraps. On the outside of the hollow cylinders single-celled green algae live. These algae use the carbon dioxide and nitrogen wastes given off by the corals to produce sugars and oxygen through the process of photosynthesis. The sugar and oxygen are then used by the coral for growth. In addition, the algae are protected by the structure of the reef from animals that might eat them.
a.) Mutualism
b.) Commensalism
c.) Parasitism
d.) Predator-Prey
What would most likely be produced when a cell with eight chromosomes undergoes mitosis?
Answer: two cells with eight chromosomes each
Explanation:
A diploid cell that enters mitosis with eight chromosomes will divide to produce two diploid daughter cells, each of which also has four chromosomes.
What is mitosis?
Mitosis is the process by which a cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division. Mitosis is generally followed by equal division of the cell's content into two daughter cells that have identical genomes
it is also known as equational division.
so, if a cell with 8 chromosome undergoes mitosis , it will produce two daughter cell with four chromosome.
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what ae the functions of the temporal lobe
Explanation:
The function of the temporal lobe centers around auditory stimuli, memory, and emotion. The temporal lobe contains the primary auditory complex
GREETINGS!
Temporal lobe is function is auditory perception i.e. hearing also it is concerned with speaking and memory processing because it has hippocampus
The ossicles are the three smallest bones in the human body.
Please select the best answer from the choices provided
Тrue or false
Answer:
true
Explanation:
edge 2020
The malleus, incus, and stapes are the smallest bony ossicles of the middle ear, along with the tympanic membrane. Therefore, the statement is true.
What are the three smallest bone?Ossicle is a colloquial term referring to a tiny bone or bony structure. in particular, any one of the three tiny bones that make up the middle ear, which are the malleus, the incus, and the stapes.
The long process of the incus is bowed near its lower end and carries a little knoblike bone that is loosely jointed to the head of the stapes, which is the third and smallest of the ossicles.
A bone in the shape of a horseshoe is the one that is responsible for sending the sound wave to the brain. Because to its length of about 2-3 millimeters (or 0.1 inch), it is regarded to be the smallest bone.
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Propose an explanation for why populations of top carnivores, such as hawks, are always smaller
than the populations of herbivores, such as caterpillars.
hope it helps you plz mark me brilliantest
Answer:
Propose an explanation for why populations of top carnivores, such as hawks, are always smaller than the populations of herbivores, such as caterpillars. Because only ~10% of the energy gets transferred up the pyramid, it takes a lot of the previous level to sustain the next higher level.
A class prepares for an onion cell lab in which a thin layer of onion skin is examined under
the microscope. Which of the following is NOT a safety precaution that students should follow
during the lab? A A pair of chemical splash goggles should be worn during the investigation.
B A hot mitt should be worn to adjust light on the microscope
C A pair of gloves should be worn when handling samples.
D A lab apron should be worn to protect clothing.
Answer: b
Explanation: all the others are safety precautions, this is not. It’s a good idea, but not necessary to do.
How is energy transferred between trophic levels
Answer:Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.
Explanation:
a pyramid of energy for this ecosystem would look more like the pyramid of numbers or biomass
Answer:
biomass; numbers
Explanation:
For Savvas Realize
The pyramid of energy for biomass would look more like the pyramid of numbers.
What is pyramid of energy?Primary producers occupy the highest biomass in a pyramid of energy. In general, only 10-20% of biomass is transferred from one trophic level to the next.
In general, biomass pyramids are upright because biomass decreases as trophic level increases.
Ecological pyramids are a method of visualizing a food chain, using either the mass of organisms or the total population of organisms at each stage of the food chain.
Pyramids of biomass are always of the "classic" shape, whereas pyramids of numbers can be inverse or have levels of varying width.
Thus, the pyramid of numbers has similarity with that of biomass, but pyramid of biomass is more accurate than that of the number.
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What types of organisms take in oxygen?
Please help :)
Answer:
Most multicellar organisms, including humans, have structures inside their cells called mitochondria, which use oxygen to convert nutrients into energy molecules known as ATP.
Explanation:
so most multicellelar organisms
What do magnesium and chlorine react to form?
A. O Mg2Cl2
в. OMgCI
C. MgCl2
D.Mg2C1
Answer:
When magnesium (Mg) reacts with chlorine (Cl) to form MgCl2, each atom of magnesium(gains,loses)(1,2,3,4) electron(s). As a result, each magnesium ion has a(1+,2+.3+,4+,1-,2-,3-.4-)charge.
Explanation:
Which of the following atmospheric pollutant contributes to acid rain
Which are required for natural selection to occur?
inheritance, isolation, adaptation
variation, overpopulation, adaptation
isolation, overpopulation, speciation
variation, inheritance, speciation
Answer: B
Explanation:
Natural selection is a mechanism of evolution which was given by Charles Darwin. According to natural selection, individuals with heritable traits which favor their reproductive success as well as survival are selected by nature.
For natural selection to take place, there should be variability as well as higher reproductive success . Eventually natural selection causes individuals to become adapted to their environment (i copied the answer from someone else but here you go so you don't have to search for them)
Answer:
b
Explanation:
ist the reactants and list the products. 6K + B2O3 ---> 3K2O +2B
Answer:
Reactants: K (Potassium) and B₂O₃ (Diboron trioxide)
Products: K₂O (Potassium Oxide) and B (Boron)
Explanation:
Reactants are always on the left side of the reacting arrow.
Products are always on the right side of the reacting arrow.
A large amount of energy is needed to produce food. In all parts of the world, the energy used to process, distribute, and cook food is greater than the energy used to grow it. In the United States, it is estimated that every Calorie of food on our dinner tables has required 9 Calories of energy to get there. Half a Calorie accounts for the energy used on the farm. The other 8.5 Calories account for energy for processing, packaging, distribution, and cooking. In rural India, twice as much energy goes into cooking a kilogram of rice as was invested in producing it. Energy shortages, such as a shortage of wood for cooking, have caused environmental problems such as deforestation. In poor countries, cooking may require more energy than is used by transportation, heating, and all other uses for energy combined.
1. According to the passage, which of the following statements about food is true?
A. Most of the energy invested in food production goes into distributing the food.
B. More energy is used to grow food on the farm than is used to cook the food.
C. Most energy used to produce food goes into processing, distributing, and cooking the food.
D. In developing countries only, cooking food requires more energy than growing food does.
2. Which of the following points is not discussed in this passage?
A. Packaging is the least costly part of preparing food for sale to the customer.
B. It takes more energy to cook a kilogram of rice than to grow a kilogram of rice.
C. In some countries, cooking requires more energy than all other processes that use energy combined.
D. Gathering sufficient wood to cook food has led to deforestation.
help me help me help me help me help me
Answer:
The correct answet is -
1. C. Most energy used to produce food goes into processing, distributing, and cooking the food.
2. D. Gathering sufficient wood to cook food has led to deforestation.
Explanation:
In the given passage, the author stated the fact that the most of the energy used in the production of the food is actually invested in the processing, transportation, packaging and cooking the food.
In this passage it is also stated that the cooking requires twice much energy in cooking the food than growing in rural area and in poor countries only cooking itself requires most of the energy of the production of the enrgy. In this passage, there is nothing about the wood and deforestation.