Answer:
Cell theory is made up by doing a number of experiments just like scientific theory.
Explanation:
Cell theory meets the definition of a scientific theory because cell theory was made by performing a number of experiments just like scientific theory. Yes, cell theory should be scientific law if there is no change occurs in the statement of cell theory then it must be considered as law. Law should be made when the theory is passed through from a number of experiments.
Answer:
Cell theory meets the definition of the scientific theory as it is proven by numerous experiments and observations.
Explanation:
Anyone can observe the cells under the microscope using a basic staining procedure.
Please help, appreciated if you do :) Which of these accurately describes the change in the muscle cells of a person running a marathon? Decrease in the number of mitochondria Increase in myoglobin Increase in the number of skeletal muscles Decrease in myoglobin
Answer:
Hey there!
The correct answer would be a Decrease in myoglobin. Myoglobin contains a large amount of oxygen, and desaturates when muscles move. When you run a marathon, your muscles move and thus you have decreased myoglobin.
The change in muscle cells of person a Decrease in myoglobin.
What is Myoglobin?Myoglobin contains a large amount of oxygen, and desaturates when muscles move. When you run a marathon, your muscles move and thus you have decreased myoglobin.
striated muscles, which include your cardiac muscles and skeletal muscles (the muscles linked to your bones and tendons), contain the protein known as myoglobin. Its primary job is to give your muscles' cells oxygen (myocytes).
body's cells require oxygen to function. They transform the stored energy using oxygen. Due to their regular use, your cardiac muscles and skeletal muscles need a lot of oxygen and energy.
Therefore, The change in muscle cells of person a Decrease in myoglobin.
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Which is the faster work organ in our body ?
Explanation:
skin is the faster work organ in our body
Answer:
heart works faster in our body
Explanation:
Match each phrase with the correct answer. Group of answer choices Organism in a lichen that provides protection [ Choose ] Organism in a lichen that provides nutrients through photosynthesis [ Choose ] Branched growth form of lichen [ Choose ] Leafy growth form of lichen [ Choose ] Small and flat growth form of lichen [ Choose ]
Answer:
Organism in a lichen that provides protection - algae
Organism in a lichen that provides nutrients through photosynthesis - algae
Branched growth form of lichen - fruticose
Leafy growth form of lichen - foliose
Small and flat growth form of lichen - crustose
Explanation:
Lichens are composite organisms that are formed from symbiotic relationships between fungi and cyanobacteria/algae. The Green algae layer offers food to the fungi by photosynthesis while the latter supplies nutrients and offers protection to the algal component.
There are different types of lichen based on the growth structure:
Fruticose lichens grow upright and shrubby and posses either round or flat branches.
Foliose lichen appears like a leaf with upper and lower layers. They are usually flat or convoluted in nature.
Crustose lichens are small in appearance with flat, crusty growth on surfaces on which they grow.
I will give brainliest and thanks! Which statement about biomass energy is correct? A. Biomass energy is a nonrenewable resource that makes use of materials from recently living organisms. B. Biomass energy is a nonrenewable resource that involves the use of fossil fuels. C. Biomass energy is a renewable resource that cannot be used to generate electricity. D. Biomass energy is a renewable resource that releases pollutants into the air.
Answer:
a
Explanation:
Biomass energy is in fact a nonrenewable resource that makes use of materials from recently living organisms
( please mark me as brainliest, that would be most apprieciated! )
The statement about biomass energy is correct as the biomass energy is a nonrenewable resource that makes use of materials from recently living organisms and is present in Option A as it can end one day.
What is the significance of biomass energy?Biomass energy uses organic materials, such as wood chips, agricultural waste, etc., and they release pollutants into the air that can occur during the burning of biomass, which can be mitigated through the use of modern, efficient combustion. Due to its low carbon emissions, biomass releases fewer carbon emissions when burned than fossil fuels.
Hence, the statement about biomass energy is correct as the biomass energy is a nonrenewable resource that makes use of materials from recently living organisms and is present in Option A as it can end one day.
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1 Point
Which of the following terms means "a very large molecule made up of many
smaller molecules joined together"?
A. Macromolecule
B. Lipid
Ο Ο Ο
C. Carbohydrate
O D. Nucleic acid
SUBMIT
Answer:
A. Macromolecule
Explanation:
A macromolecule is commonly formed through polymerization which means the production of polymers. The polymers are usually formed when different monomers add up to form a bigger substance(polymer). Polymers are examples of macromolecules because they contain two or more monomers which has a lot of compounds embedded in them.
Macromolecules are very large molecule made up of many smaller molecules joined together and the other options such as carbohydrates, Lipid and nucleic are examples of macromolecules formed under suitable conditions.
where is most of the energy produced in cellular respiration
Answer:
Most of the ATP energy obtained from cellular respiration is produced in the third and final stage, the electron transport chain.
A cell divides to produce two daughter cells that are genetically identical. ____ 13. Homologous chromosomes synapse and crossing over occurs. ____ 14. Centromeres uncouple and chromatids are separated from each other. 15. Independent assortment of chromosomes occurs. _ 16. The process is preceded by replication of the DNA. ___
Answer:
Explanation:
The descriptions describes some of the events that takes place in the mitosis and meiosis cell division process.
A cell divides to produce two daughter cells that are genetically identical. ____. This describes mitosis
Homologous chromosomes synapse and crossing over occurs. ____ . this happens in meiosis I only
14. Centromeres uncouple and chromatids are separated from each other - this happens in mitosis and meiosis II.
15. Independent assortment of chromosomes occurs. _ this happens in meiosis I only.
16. The process is preceded by replication of the DNA. ___. This happens in mitosis and meiosis II.
In the product 6O2, what does the coefficient mean? There are 12 molecules of O2, There are 8 molecules of O2, There are 6 molecules of O2. There are 2 molecules of O2.
In the product 6O2, there are 6 molecules of O2.
WHAT COEFFICIENT MEANS:
Coefficient, in chemistry, refers to the number behind an element. It represents the number of molecules of that element. The coefficient tells us the amount of molecules contained in an element. For example;In the product 6O2, this tells us that there are 6 molecules of oxygen gas (O2). Other examples are: 2Mn meaning 2 molecules of manganese, 3CO2 meaning 3 molecules of carbon dioxide etc.Learn more: https://brainly.com/question/11815186?referrer=searchResults
A small lake is filled with fish, turtles, and snakes. The next morning all the fish die but the turtles and snakes are still thriving. How did all the fish die?
Answer:
the snakes and turtles ate the fish
Explanation:
Which animals have hair
Answer:
rodents,rabbits and primates have hair
Answer:
Rodents, Primates, and Rabbits
A body decelerates uniformly to a constant speed and after some time it accelerates uniformly Draw the shape of speed time graph for such a motion . Label the three sections of this graph. What is the quantity which is measured by the area occupied under speed time graph ?
Answer:
Kindly check attached picture
Quantity measured is DISTANCE
Explanation:
Segment AB = measures uniform deceleration
BC = Constant speed moved by the car
CD = Uniform acceleration
During uniform deceleration: the speed of the body is reduced at a constant rate with time.
During Constant Speed, the car maintains a Velocity which does not increase or reduce at a certain time interval.
During uniform acceleration the speed of the car increases at a constant rate with time.
B) THE quantity measured by the area covered under a speed-time graph is distance :
With speed on the vertical (y-axis) and time on the horizontal (x-axis)
Area of trapezium = 0.5(AD + BC) × height
all plants give out oxygen during day and carbon dioxide during 9 to you agree with this statement give reason
Answer:
Yes, I agree with the given statement.
Explanation:
Plants undergo the process of photosynthesis for the production of their food. In this process, they require the presence of sunlight, carbon dioxide, water, minerals, and chlorophyll. The process of photosynthesis is possible only during the day because sunlight is one of the major components. Carbon dioxide is taken in by the plant through the stomata from the environment. The oxygen is formed as a product of the process and is released in the environment. This process becomes impossible during the night because of the absence of sunlight. The entire process sums up to that the plants give out oxygen during the day and give out carbon dioxide during the night.
Which statement describes convergent boundaries?
Rift Forms.
Subduction Occurs.
Plates push away from each other.
Mid-ocean ridges mark locations.
Answer:
its b i took the test
Explanation:
Subduction describes convergent boundaries.
What is convergent boundaries?Lithospheric plate borders that are convergent are those where the plates are moving in the same direction. These regions' plate clashes have the potential to cause earthquakes, volcanic eruptions, and crustal deformation.
The thicker, less dense continental plate pushes aside the thinner, more dense oceanic plate when the two plates contact. Subduction is the process by which the oceanic plate is pressed into the mantle.
The oceanic plate is pushed into regions with increasing temperatures as it falls. Materials in the subducting plate start to approach their melting temperatures and partial melting starts to take place at a depth of around 100 miles (160 km).
Therefore, Subduction describes convergent boundaries.
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.
What is the role of xylem in a vascular plant?
A. Transports salt to the roots of the plant
B. Transports chloroplasts to the leaves of the plant
C. Transports carbohydrates from the leaves to the roots
D. Transports material from the roots up into the plant
SUBMIT
the correct answer is D
The role of the xylem in a vascular plant is to transport material from the roots up into the plant.
What do you mean by Vascular plants?Vascular plants may be defined as those plants that have a specialized conducting system that includes xylem and phloem.
Xylem is known to transport water and all essential nutrients and minerals from the roots to the leaves.
Phloem on the other hand transport food from the leaves to the roots.
Therefore, the role of the xylem in a vascular plant is to transport material from the roots up into the plant.
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what is the center of the DNA strand?
Answer:
It exhibits traits and metabolic instructions of the cell.
Explanation:
A DNA strand is a thin long molecule, with an average width of just around two nanometers. The remarkable thinness of the DNA strands allows them to be bundled very tightly fitted inside cells. Once DNA has been replicated adequately during the process of cell division, it is further wrapped together under a mechanism known as supercoiling. A non-condensed DNA is further condensed during supercoiling using a special protein known as a histone. A part of DNA packed around a large cluster of histones is called a nucleosome. Additional condensation leads to a chromosome or the most compact type of DNA that fits into the nucleus. It is also worth noting that this wrapping does not merely align DNA into a cell, but serves other objectives such as protecting DNA, thus ensuring metabolic instructions to the cell.
Which two characteristics describe all animals? multicellular and symmetrical multicellular and asymmetrical heterotrophic and multicellular heterotrophic and unicellular
Answer:
heterotrophic and multicellular
Explanation:
All animals are heterotrophic and multicellular. Heterotrophic means that the animals are unable to manufacture their own food. The animals are said to be heterotrophic because unlike plants, they cannot manufacture their own food. They depend on plants and other sources to derive nutrition and energy. Multicellular means made up of many cells. Animals are said to be multicellular because they are made up of different cells.
Answer:
All animals are heterotrophic and multicellular.
Explanation:
All animals are multicellular, they're not just made of one cell.
All animals are heterotrophic, they cannot make their own food like plants so they must rely on eating other organisms for food.
Also, the other answers don't fit.
If soil have all nutrients, then why do we need to replenish it.
Urgent!!!
Answer:
because when we griw theplants over there all the nutrition will be already consumed so, we need to replenish it time to time.
Ash trees are being removed when they show signs of the ash borer, a parasite that affects only ash trees and kills them off. What best explains why the ash trees are being cut down? The ash borer is a density-independent limiting factor, and humans need to clear cut to control tree density. The ash borer is a density-dependent limiting factor and will start to spread to nearby healthy trees. Ash trees are outcompeting other trees and are thus more affected by the ash borer. Changes in climate have decreased ash borer populations which indirectly increased the need for cutting down the trees.
Answer:
The ash borer is a density-dependent limiting factor and will start to spread to nearby healthy trees.
Explanation:
Ash borer is a parasite that affects ash trees it is highly destructive and invasive. It affects it Native host causing serious damages. Infected plant is cut down to avoid its spread to other healthy plant this is because ash bored when not control can destroy a whole population of ash trees in it Native environment within the space of 10 years. Its population dependent and would keep increasing in population and become more destructive. Thus, to avoid its spread infected trees are treated cut down and cut down.
Blue ash a type of ash tree shows high resistance to ash borer because of it high tanning content that makes the leaf not suitable to consume to them.
Answer:b
Explanation:
Based on the genotype of AB blood, what relationship do the A and B genes have?
Answer: In people with type AB blood, both A and B proteins are expressed on the surface of red blood cells equally.
Explanation:
Answer:
They are codominant
Explanation:
The A and B antigens are equally present on the red blood cells, so the relationship of the A and B genes is codominant.
Predict what will happen to a fish if its gills are torn after being caught in a net.
Answer:
It will die.
Explanation:
Fish need functional gills to live.
If the gills of the fish are torn after getting caught in a net, it will die due to lack of gaseous exchange.
What are gills?It is the gas exchange system in fishes. Like humans, aquatic species like fishes need respiration and the process of gas exchange in order to thrive. However, the solubility of the respiratory gases is very low in water, thus, fishes have evolved unique organs called gills, which are formed of many filaments covered heavily in lamellae.
The gill lamellae is the plate composition, which helps in increasing the intake of oxygen when the water flows over it. The gills comprises blood capillaries, and this composition of gills enhances the surface area for gas exchange to occur, and increases the rate of diffusion.
Thus, when gills get torn, the surface area for an efficient gas exchange reduces, and the fish dies due to lack of oxygen.
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What are some man made reasons that animals in population might die?
Some man made reasons that animals in population might die are poaching and human touch.
When animals eat trash or plastic?Animals that are especially ones at sea would get caught up in this trash and die or the mistake it as food and eat this trash or plastic. The ocean right now has five texas state size balls of plastic floating in the ocean which kills sooooo many sea creatures.
Poaching animals that causes animals to die the faster in their natural environment which means their population that declines quicker. Many animals that or such as the elephants are under the endangered species list, due to poaching.
The amount of the people we have on this earth has was more than it used to be which the means we need more space for the buildings and homes. When there has an the empty space, we build. this empty space could’ve belonged to many animals and we just took their home from them.
Therefore, Some man made reasons that animals in population might die are poaching and human touch.
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Is oxygen is a requirement or a product of photosynthesis?explain
Answer:
Oxygen is a product of photosynthesis
Explanation:
Oxygen is what the plant produced when going through photosynthesis. This is also shown by the equation for this process which is 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Answer:
Photosynthesis, process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. Oxygen is a byproduct of photosynthesis and, correspondingly, carbon dioxide the byproduct of respiration
Plants are unique because they have _____, which absorb light energy from the Sun.
Answer:
Chloroplasts
Explanation:
Plants have chloroplast which can convert light energy from sun into chemical energy for the plant.
Which is composed of animo acid and determines all the structures and function of organism
In the process of respiration, energy is released from ______
molecules and stored in smaller ______ molecules.
A. protein, ATP
B. food, glucose
C. lipids, triglycerides
D. glucose, ATP
Answer:
The answer is option D.
Hope this helps you
Answer:
In the process of respiration, energy is released from glucose molecules and stored in smaller ATP molecules.
Explanation:
Among carbohydrates, protein and fat, carbohydrates are metabolized first on respiration.
Glucose first breaks into pyruvic acid (Glycolysis) Pyruvic acid forms acetyl coA (Link reaction) Acetyl coA enters into the kreb cycle, where ATP is formed. ATP formed through substrate level phosphorylation (direct ATP) and Electron transport chain (indirect ATP). NADH2 and FADH2 formed during respiration enters into ETC where they form ATP through oxidative phosphorylation.Thus, we can say that the correct option is D. Glucose, ATP.
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The DNA of humans and mice is almost 92% similar. This similarity indicates that . Mice have a tail, while humans have a tailbone. The tailbone is a structure in humans.
Answer
Mice share a common ancestor with humans, homologousExplanation:
The DNA of humans and mice is almost 92% similar. This similarity indicates that mice share a common ancestor with humans. Mice have a tail, while humans have a tailbone. The tailbone is a homologous structure in humans.
The existence of similar genes (DNA) and pair of structures (tail and tail bone) between humans and mice is referred to as homology. The tail and tail bone that exist between the different animals are called homologous structures. Homologous structures are similar structures that can be found in different animals, indicating that the animals have evolved from a common ancestor. Homologous structures show a high degree of similarity in form but they may or may not have the same functions in the different animals.
The similarity in the DNA and the structures (tail and tail bones) that exist in humans and mice suggests that the two different specie are connected to a common ancestor.
Answer:
Mice share a common ancestor with humans, homologous
Explanation:
PLATO
Think of an example of a natural disaster or human-caused environmental
change that could affect the animals.
Answer:
forest fires.
Explanation:
forest fires are human caused and can destruct the habitat and nutrition of the animals severely
The amount of energy at trophic levels one and four in an ecosystem is indicated by the numbers.
Only 10% of the energy is passed on to the next trophic level.
What is the total amount of energy in levels two and three?
Answer:
1100
Explanation:
There is 10% of total energy in each increasing trophic level. 10,000 / 10 = 1,000 ,so there are 1,000 units of energy in trophic level 2.
1,000 / 10 = 100, so there are 100 units of energy in trophic level 3.
1,000 + 100 units of combined energy would be 1,100 units of energy.
Hope this helps!
Which of the following statements is true?
How would the coils in the middle of the diagram
change to show a longitudinal wave with higher
energy?
They would be farther apart.
They would be closer together.
They would be shaped like a hill.
They would be shaped like a valley.
Answer:
The correct answer is - option C.
Explanation:
A longitudinal wave with higher vitality have more noteworthy plentifulness. Abundancy is the separation between the covering and trough of the wave. The crust is the topmost layer of the wave while trough is present at the bottom portion of the wave.
In the event that the separation among crust and trough of the wave is higher so the amplitude is likewise more prominent and we can say that the wave contains a high measure of vitality and the other way around. The state of the structure of the wave simply like a hill.
Thus, the correct answer is - option C.
Answer:
C
Explanation:
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