According to the energy pyramid principle in ecology, the algae in this food chain would have the most energy because it is at the base of the food chain, and energy decreases as you move up the chain.
Explanation:In this scenario, Algae would have the most energy. This is due to the concept of the energy pyramid, which is a fundamental principle in ecology. Energy transfers from one trophic level to the next, from producers to consumers. However, not all energy gets transferred, generally, about 10% of the energy is transferred from one trophic level to the next. As a result, the lower you are on the pyramid (in this case the algae) the more energy is available. Hence, the algae, being at the bottom of this food chain, would have the largest amount of energy.
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If a reaction is exergonic, then which of these statements is true?
Final answer:
The true statement for an exergonic reaction is that (option A) the products have lower Gibbs free energy than the reactants, as energy is released during the reaction.
Explanation:
If a reaction is exergonic, then the correct statement is: A. The products have lower Gibbs free energy than the reactants. This is because during an exergonic reaction, energy is released as the reaction proceeds. As energy diagrams and thermodynamics principles indicate, the Gibbs free energy change for an exergonic reaction is negative, meaning that the reaction releases energy, often in the form of heat, and the products have less energy than the reactants. The idea of a reaction being 'downhill' metaphorically represents this energy release.
The other options are not generally true for exergonic reactions. B. Energy must be added for the reaction to proceed is incorrect because that describes an endergonic reaction, where energy input is required. C. The products have lower entropy (are more ordered) than the reactants is not necessarily true; entropy changes depend on the specific reaction. D. The reaction always occurs quickly is also incorrect as the rate of a reaction is dependent on factors such as activation energy and not only on the exergonic nature of the reaction itself.
what is water molecule made of A.one oxygen atom and two hydrogen atoms B. one carbon atom and two oxygen atoms C.one hydrogen atom and two oxygen atoms D.one carbon atom and four hydrogen atoms
Answer:
A. one oxygen atom and two hydrogen atoms
Explanation:
A water molecule is made of one oxygen atom and two hydrogen atoms.
Water's exceptional polarity allows it to dissolve a wide range of substances. The positively charged hydrogen atoms are highly attractive to negatively charged ions, while the negatively charged oxygen atom attracts positively charged ions.
These properties make water an exceptional solvent for both ionic compounds and polar molecules. In addition, the robust hydrogen bonds between water molecules are responsible for their remarkable boiling and melting points, which require a considerable amount of energy to break.
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What is the serous membrane that lines the walls of the thoracic cavity?
The pleura is the serous membrane lining the walls of the thoracic cavity, with a parietal layer against the cavity wall and a visceral layer covering the lungs, and a fluid-filled space in between to reduce friction.
Explanation:The serous membrane that lines the walls of the thoracic cavity is known as the pleura. This thin, double-layered membrane has a parietal layer that lines the cavity wall and a visceral layer that covers the external surface of the lungs. Between these layers is the pleural cavity, containing a small amount of serous fluid that acts as a lubricant, reducing friction during respiratory movements.
There are other serous membranes within the body, including the pericardium that surrounds the heart and the peritoneum that lines the abdominal cavity. These membranes provide a smooth and slippery lining, protect the organs they encase, and help to prevent friction, which could lead to inflammation.
If a scientist wanted to study cell responses under varying environmental conditions, what laboratory technique would be appropriate to use
Which of the following is not present in an atom?
Electron
Element
Neutron
Proton
In an atom, an element is not present. Hence, the second option is the correct answer. The atom is the basic structural unit of the element.
What is an atom?An atom is the basic, fundamental unit of the element. The atom is made up of electrons, protons, and neutrons. In an atom, the electron carries a negative charge and the proton carries a positive charge. The neutron has no charge. The proton and neutron are present in the centre of the atom. Electrons are present around it. Electrons move in orbits.
In a neutral atom, the electron and proton numbers are the same. Hence, they don't show any charge. The electron can move out of the atom or add to an atom. These electrons are called valence shell electrons. Atoms constitute to make an element. Others are incorrect options for the statement because electrons, protons, and neutrons are all components of an atom.
Hence, the second option is the correct answer, as an atom is a part of an element, but an element is not a part of an atom.
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Evaluate the relative environments inside and outside the cell when a cell is said to be in dynamic equilibrium with its environment
The relative environments inside and outside a cell in dynamic equilibrium are similar in terms of particle concentration. Despite this, there is continuous particle movement across the cell membrane to maintain internal stability. This involves both passive and active transport mechanisms.
Explanation:When a cell is said to be in dynamic equilibrium with its environment, it means that the concentration of molecules, ions, or other particles is the same both inside and outside the cell, yet there is a constant movement or exchange of these particles across the cell membrane. This is crucial to maintain the cell's homeostasis, or stable internal conditions.
Despite this balance, particles constantly move across the cell membrane either through passive transport like diffusion or osmosis, or active transport, which requires energy. However, the cell ensures that the overall balance of substances is preserved. In other words, the volumes of substances leaving and entering the cell are the same.
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Dynamic equilibrium in cells refers to its ability to maintain its internal environments despite changes in the external environment. This dynamic balance enables growth, reproduction and sustains a variety of crucial processes within the cell. Material exchange between the cell and its environment aids these processes, maintaining dynamic equilibrium.
Explanation:When a cell is said to be in dynamic equilibrium with its environment, it implies that the cell has achieved a state of balance between its internal and external environments. The cell actively regulates its internal conditions to maintain this balance, even as the external environment changes.
Growth, reproduction, and dynamic homeostasis require that cells create and maintain internal environments that are different from their external environments. Despite the differences, there's a continuous exchange of materials, such as nutrients and waste products, between the cell and its surroundings, enabling various processes like growth and reproduction.
For instance, if there is a higher concentration of a certain molecule outside the cell, it would naturally want to equilibrate and move into the cell. Yet, the cell maintains its internal environment by utilising energy to actively transport that molecule out, hence maintaining its 'dynamic equilibrium'.
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When you digest food starch is broken down to what molecule?
In the digestive process, starch is broken down into glucose, starting with salivary amylase in the mouth and continuing with other enzymes in the small intestine. Glucose is then absorbed by cells for energy.
Explanation:When you digest food, starch is broken down into a simpler molecule known as glucose. The digestion process begins in the mouth, where salivary amylase starts breaking down the long polysaccharide chains of starch into shorter chains and disaccharides, such as maltose. As digestion continues in the small intestine, enzymes like pancreatic amylase further break down these chains, and brush border enzymes such as maltase convert maltose into individual glucose molecules, which can be absorbed by the cells.
Starch is a carbohydrate composed of many glucose monomers linked together by 1-4 or 1-6 glycosidic bonds. Upon digestion, these bonds are hydrolyzed, releasing the energy-storing glucose units. This enzyme-catalyzed process is crucial for providing energy to cells and maintaining overall homeostasis in the body.
The cellular organelles with inheritance independent of the nucleus are the _____________ and the ____________ .
The pattern of criss-crossing strips of pastry on top of food is called a what?
Final answer:
The weaving of pastry on top of food, especially pies, is known as a lattice. It combines function and beauty, allowing steam to escape and giving a golden brown finish to baked goods.
Explanation:
The criss-crossing strips of pastry on top of food is called a lattice. This technique is often used in baking to create a visually appealing and edible top layer on pies and other pastries. The lattice is essentially a woven pattern created by interlacing long strips of pastry dough over and under each other. One famous lattice-topped pastry is the apple pie, a staple in American cuisine. The lattice top allows steam to escape during baking, which helps to prevent the pastry from becoming soggy. The lattice provides a lovely contrast of texture and color when baked until golden brown.
The branch of the autonomic nervous system that prepares the body for quick action in an emergency is the ________ division.
BIOLOGY HELP
C G A A U C
Study this genetic code.
In order for this code to represent a piece of DNA, which base must be replaced by thymine?
A) adenine
B) cytosine
C) guanine
D) uracil
Which question is most likely closely related to th field of biology? A) What is the average length of cobra B) What are most rocks made of? C) How fast does earth rotate D)What is the mass of the moon
When is the manual removal of oil by hand most likely to be used?
A.) When the spill is far out at sea
B.) When the oil has sunk to the bottom
C.) When heavy equipment cannot reach the spill
D.) When the oil has already started to break down
Answer:
Option D, When the oil has already started to break down
Explanation:
When the oil breaks down, there are high chances that it can get absorbed at the surface of beaches consisting of sand, gravel, or cobble which cannot be cleaned otherwise. In such scenarios adsorbents are placed manually to soak the oil spilled on beach. Mostly shorelines are cleaned using these manual processes, otherwise inner oil spills are cleaned by machines only.
Hence, option D is the correct answer.
There are many areas of science that experience debate. How can a scientist most effectively defend their position if they discuss a controversial topic?
A.) They can alter their experimental results to fit the opinions of the community.
B.) They can argue using critical thinking skills and data.
C.) They can ignore any criticism that may occur.
D.) They can re-analyze their data until they get a better accepted result.
The scientist can argue using critical thinking skills and data to discuss a controversial topic to defend their position most effectively.
What do you mean by critical thinking skills?"Critical thinking skill is the analysis of available facts, evidence, observations, and arguments to form a judgment."The analysis should be rational and unbiased based on evidences and facts.One should fully research about the topic and put forward their points in a sequential and understandable manner.What do you mean by controversial topic?"It is a prolonged dispute, debate, or state of contention, especially one that unfolds in public and involves a stark difference of opinion."Hence, the correct option is B. They can argue using critical thinking skills and data.
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Which process can be primarily affected by gallbladder disease ?
A. Carbohydrate digestion
B. fat digestion
C . protein Digestion
D. vitamin digestion
Answer: B. Fat Digestion
Explanation: Took the test on PLATO its correct
Identify the four postulates of natural selection. select all that apply. select all that apply. individuals with certain traits are more likely to survive and reproduce. individuals in a population all possess the same traits. all individuals in a population have equal reproductive success. survival and reproductive success are variable among individuals in a population. some trait differences are heritable. individuals in a population vary in the traits they possess.
Based on the data you found, about how many of the 100 aliens would become thin if the temperature were 35°C?
Answer choices are:
a. fewer than 10
b. about 50
c. about 80
d. more than 90
____________________________________________________________
Correct answer choice is:
d. more than 90
____________________________________________________________
Explanation:
You have seen that at temperature 20°, around 50 aliens were thin. At 25°, roughly 70 aliens were thin. Moreover, at 30°, nearly 88 aliens were thin. The take-home feature is that the greater the temperature, the larger number of aliens are suspected to be thin. So at 35°, we would suspect a higher number of aliens to be weaker than the 88 who are thin at 30°.
Define radioactivity . if an element has three isotopes, which of them is most likely to be a radioisotope
Radioactivity is the emission of particles and radiation from unstable atomic nuclei. For example, Carbon-14 is a radioactive isotope with 6 protons and 8 neutrons, unlike the stable Carbon-12 and Carbon-13. Carbon-14 decays over time, emitting radiation.
Radioactivity is the spontaneous emission of particles and radiation from atomic nuclei. This process occurs because unstable nuclei seek to achieve stability, emitting energy in the form of radiation.
To give an example, Carbon-14 (C-14) is a well-known radioactive isotope, which is commonly used in radiocarbon dating. Carbon-14 has 6 protons and 8 neutrons, whereas its stable isotope, Carbon-12 (C-12), has 6 protons and 6 neutrons.
Carbon-12 (C-12): Protons = 6, Neutrons = 6Carbon-13 (C-13): Protons = 6, Neutrons = 7Carbon-14 (C-14): Protons = 6, Neutrons = 8 (Radioisotope)Among these isotopes, Carbon-14 is a radioisotope due to its unstable nuclear configuration, which leads it to emit radiation as it decays over time.
What empirical evidence could most effectively and directly be used to convince law makers to remove a dam that is blocking a river used by wild salmon to reach their breeding grounds
A.) Information about the number of salmon offspring are produced over several years.
B.) Information on the distance from the ocean to the rivers that the salmon use.
C.) Information on how often the salmon mate during their breeding season.
D.) Information on how long it takes the juvenile salmon to grow into adults.
The correct answer is A) Information about the number of salmon offspring are produced over several years.
The empirical evidence that could most effectively and directly be used to convince lawmakers to remove a dam that is blocking a river used by wild salmon to reach their breeding grounds is "Information about the number of salmon offspring are produced over several years."
When you want to be listened by local authorities about what you consider is a serious issue for the community of the environment, you need to provide valid and serious data, not only your opinion or beliefs. Local authorities are expecting to have the right reasons, valid information, the statistics and the possible consequences of not attending an issue. In this case, an environmental issue. That is the best way to convince them and how this is going to affect them in case they do not attend the problem.
how many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each other
How does the loop of henle enable the mammalian kidney to produce hyperosmotic urine?
Your neighbor has fertilized her lawn. several weeks later, she is alarmed to see that the surface of her ornamental pond, which sits at the bottom of the sloping lawn, is covered with a green layer of algae
The reason why there is a green layer of algae was because of the reason that there may be too much fertilizer applied in the lawn. When having too much fertilizer, and it had been rained down—there could have been a possibility of run-off to be flown down on the lawn of which has been sloped and made its way on the pond. By this, it increases the nutrients in the pond, making the algae to grow on it.
The motivation behind why there is a green layer of green growth was on the grounds that that there might be an excess of fertilizers connected in the garden. When having an excess of manure, and it had been poured down, there could have been a probability of run-off to be flown down on the garden. By this, it builds the supplements in the lake, making the green growth to develop on it.
Further Explanation:
Fertilizer:
A fertilizer or manure is any material of normal or engineered beginning that is connected to soils or to plant tissues to supply at least one plant supplements basic to the development of plants. Numerous wellsprings of manure exist, both common and modernly created.
Fertilizer Types:
1. Nitrogenous Fertilizers
2. Natural Nitrogenous Fertilizers
3. Phosphate Fertilizers
4. Potassic Fertilizers
5. Compound Fertilizers
6. Complete Fertilizer (NPK)
uses of Fertilizers:
Nursery workers and business producers use manures. At the point when utilized properly, fertilizer can improve soil surface, advance sound development, and increment yields.
Importance of fertilizers:
Fertilizers are substances containing concoction components, for example, fertilizer or blend of nitrates that improves the development of plants. They offer sustenance to the harvests. At the point when added to soil or water, plants can create resilience against vermin like weeds, creepy crawlies and sicknesses.
Subject: biology
Level: High School
Keywords: fertilizer, fertilizer types, uses of fertilizers, importance of fertilizers.
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What is the ultimate energy source for most forms of life on earth?
Name two ways that scientists share their experimental results with other scientists
A parent asks, "how should i bathe my baby now that he has had surgery for his inguinal hernia?" which instruction should the nurse give the mother?
The skin, which plays an important protective role, is composed of which type of epithelium? the skin, which plays an important protective role, is composed of which type of epithelium? simple columnar simple squamous stratified columnar stratified squamous
Monomers linked together are called ____________. the process of linking monomers together is called _______________________.
When the amount of water in a glass slowly decreases, this is due to _____?
Explanation: APEX 1/8/2020 correct
Which of the following does a weather station model demonstrate? a) latitude b) gravity c)air pressure d) air mass
The weather station model demonstrates the air pressure of a location. It shows about the weather at a reporting station. Thus, the correct option is C.
What does weather station demonstrates?In meteorology, weather station models are the illustrations which shows the weather occurring at a given reporting station. Meteorologists create the weather station model to fit a number of weather elements into a small space on the weather maps.
Weather station model allows map users to analyze patterns in the atmospheric pressure, temperature, wind speed and direction, cloud cover, precipitation, and other parameters.
Air pressure on a weather station model only contains the last 3 digits of the air pressure. A pressure of 995.0 mb is written as 950 on the station model.
Therefore, the correct option is C.
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Cisternae that are located near the trans face of a golgi body are (click the two that are true)