Ok so I got a bad grade on my science quiz (so did everyone else) she changed the definitions she gave us originally the day of the test. So now I can redo them but I have to know the new definitions It’ll be very helpful if you can give me at least some of the answers. Thank you.
describe the three main properties that scientists measure when they study populations
Which answer correctly explains how the ATP molecule differs in function from the ADP molecule?
a.ATP stores potential energy, while ADP creates immediate energy
b.ADP breaks down energy, while ATP builds energy.
c.ADP represents potential energy, while ATP represents immediate energy.
d.ATP creates energy bonds, while ADP breaks them apart
b and d are completely wrong, leaving a or c
a: ADP requires energy to make ATP, even though the net gain by the release of energy from ATP is > energy required to make ATP from ADP. ATP may be considered potential energy until it is actually used as an energy source
c: ADP has 2 phosphates and to get energy from this, more energy must be put into the system to remove a phosphate than the energy released upon the removal of the phosphate.
ATP has 3 phosphates and to get energy from this, the 3rd phosphate can be easily removed to give this energy. ADP could be considered potential energy in that it only requires the attachment of a phosphate group to make ATP.
to me, there isn't really a clear answer for a or c
if i had to choose, i would go with C
What process is radiant energy converted into chemical energy?
a cellular respiration
b fermentation
c photosynthesis
d chemosynthesis
Answer: Option C. Photosynthesis
Explanation:
Photosynthesis is defined as the process by which plants can make their own food in the presence of sunlight by utilizing carbon dioxide and water.
The process can be understand by the following given equation:
water + carbon dioxide -------> glucose + oxygen
Photosynthesis is the process in which radiant energy converted into chemical energy through a green pigment called chlorophyll.
The process of Photosynthesis takes place in two sequential stages light-dependent and light-independent reaction.
In light-dependent reaction chlorophyll trap light and form ATP (photophosphorylation) and NADPH.
In light-independent reaction, the product of light reaction that is ATP, used to make carbohydrates from carbon dioxide (reduction).
Which is true about ecosystems?
A. Once defined, an ecosystem is a unit scientists can analyze.
B. All ecosystems are the same size.
C. Biotic and abiotic factors are the same in most ecosystems.
D. All ecosystems are identical.
Classify each description as being a characteristic of microtubules, intermediate filaments, or actin filaments.
Microfilaments refer to the polymers of the actin protein while microtubules comprise tubulin. Intermediate filaments consist of many proteins, on the basis of the cell type in which they are present.
Further Explanation:
The cytoskeleton is found in the cytoplasm of the cells including the archaea and bacteria. This is known to be complex and dynamic network of the interlinking protein filaments which extend from the nucleus of the cell to the membrane of the cell. Eukaryotic cells comprise of 2 main types of cytoskeleton filaments, namely, microfilaments, microtubules, and intermediate filaments.
1. Microfilaments: These comprise of long polymers of G-actin proteins which produces force. The growing terminal of the filament forces the barrier like cell membranes to produce. They provide path for myosin movement which help in affixation of microfilament and move along them. The major component of microfilaments is actin. They combine to form a polymer that continues to form actin filament. The functions include muscle contraction, cell movement, and maintenance of the cell shape.
2. Intermediate filament: These filaments are known to be stable as compared to the microfilaments and heterogeneous elements of the cytoskeleton. The main function of this is in maintenance of the cell shape by bearing the tension. These filaments is responsible to organize the structure of cell, serves a structural element.
3. Microtubules: These are hollow cylinders and are known to be the polymers of beta as well as alpha-tubulin. They mainly have a dynamic behavior and binds GTP for the polymerization process. centrosome organised the microtubules. This plays a main role in axoneme of flagella and cilia, mitotic spindle, and synthesis of cell wall.
Learn more:
Learn more about component of DNA https://brainly.com/question/334927 Learn more about base pairing https://brainly.com/question/2491455 Learn more about RNA base pairing https://brainly.com/question/2416343
Answer Details:
Grade: High School
Subject: Biology
Chapter: Cytoskeleton
Keywords:
Cytoskeleton , microtubules, microfilaments, intermediate filaments, actin filaments, myosin, cell function, mitotic spindle.
could someone please help me?
List three characteristics of animals
If the grasshoppers in a certain area receive 500 million joules of chemical energy from the plants they eat in one day, what is a reasonable estimate of the amount of chemical energy the frogs in the same area will get from their food ?
Answer:
50 million joules.
Explanation:
In a food chain, as the trophic level rises, the energy consumed decreases. As a result, each trophic level can only consume 10% of the energy of the previous trophic level.
With that, we can arrive at the following reasoning: The locusts are in a trophic level below the toads, which means that the toads feed on the locusts and will only consume 10% of the energy that the locusts consumed from a vegetable. If a grasshopper consumed 500 million joules, frogs will only receive 10% of that. We can find out the value of energy consumed by frogs in the following calculation:
500 million joules = 100%
X million joules = 10%
X = (500 million * 10) / 100
X = 50 million joules.
A delta at the mouth of a river is the direct result of
Select one:
deposition of sediment.
an underground river flowing to the ocean.
runoff from sewage.
an ancient glacier that passed through.
When a person sees a doctor about a respiratory illness, the doctor will want to determine if the sickness is in the upper respiratory tract or the lower respiratory tract. The starting point for the lower respiratory system is the trachea. Which structures are part of the upper respiratory system? Check all that apply. the larynx the bronchus the alveoli the lungs the pharynx the nose
The structures which are part of the upper respiratory system
include:
The larynx The pharynxThe noseWhat is Respiratory system?These are the structures which are found in the upper
respiratory tract of an organism.
They are usually lined with mucus and are responsible for
trapping external substances and protects the lower part of the
respiratory system.
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if a population's per capita growth rate is 0.02 and its population is 100000000 how large will the population be in 5 years
If a population's per capita growth rate is 0.02 and its population is 100000000, the size of the population after 5 years is equal to 110,408,080.
What is the Population growth rate?The population growth rate may be defined as the process that significantly involves the annual average rate of change of population size, for a given state, country, territory, or any geographic region, during a definite time period.
According to the question,
Per capita growth rate (λ)= 0.02 = 1+0.02 = 1.02.
The initial population size is (No) = 100000000.
Time duration (Nt+5) = ?
Now, Nt+5 = (λ)^5 × No = [tex]1.02^5[/tex] × 100000000 = 110,408,080.
Therefore, if a population's per capita growth rate is 0.02 and its population is 100000000, the size of the population after 5 years is equal to 110,408,080.
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organisms use what to work, grow, and change?
If we removed the producers from this food web, how would it affect the balance of the ecosystem?
A. There would be an increase in consumers and decomposers.
B. There would be a decrease in consumers and decomposers.
C. There would be a decrease in primary consumers and an increase in secondary consumers.
D. There would be an increase in primary consumers and a decrease in secondary consumers.
If the producers are being removed from the food web, then there would be a decrease in consumers and decomposers. The correct option is B.
What are producers?Producers, also known as autotrophs, are lifeforms that produce their own food.
They derive power from chemical compounds or the sun and use water to convert it into usable energy in the form of sugar or food. Plants are the most visible type of producer.
Producers convert water, carbon dioxide, nutrients, and sunlight into organic molecules, which are the foundation of all life on Earth.
Plants and algae plant-like lifeforms that live in water can use solar energy to produce their own food.
If producers are removed from the food web, the number of consumers and decomposers will decrease.
Thus, the correct option is B.
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List one benefit and one limitation of using scientific models.
Scientific models are beneficial as they allow us to quickly make predictions and help us comprehend complex phenomena. However, they are limited due to the complexity of what they represent and might not fully portray the whole phenomenon or may only work under certain situations.
Explanation:Scientific models, used in various fields of study, including physics, biology, and chemistry, are representations of complex phenomena and facilitate our understanding of them. They can be both physical or computer-based and should generally be built around a hypothesis.
One benefit of using scientific models is that they provide predictions quickly and can often yield accurate results. For instance, the electron cloud model of an atom visualizes the structure of an atom, helping us understand where electrons are likely to be located.
However, these models also come with certain limitations. The limitations of scientific models often stem from the complexity of the phenomena they represent. This complexity can make it difficult to describe the model accurately, especially when we attempt to translate these complex phenomena into everyday language. Sometimes these models only depict part of the phenomenon or work effectively in certain situations, not all.
Consequently, while models are useful tools in scientific research, their limitations should always be considered when interpreting their results.
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according to cell theory where do all new cells come from?
1)If a Boron atom has 5 protons, 6 neutrons, and 5 electrons, it has a mass of ______.
A)11
B)10
C)6
2)The atomic number of an atom is the total number of ______ in the nucleus.
A)protons and electrons
B)protons
C)neutrons
3)A lithium atom has 3 protons, 3 neutrons, and 3 electrons. Which of the following sets of particles represents and ISOTOPE of this atom?
A)4 protons, 3 neutrons, and 4 electrons
B)3 protons, 4 neutrons, and 3 electrons
C)4 protons, 4 neutrons, and 4 electrons
Which is an example of a pandemic?
A whooping cough
B Black Death
C smallpox
D diabetes
An example of a pandemic is the black death. Thus, the correct option is B.
What is a Pandemic?A Pandemic may be defined as an upsurge of a disease that takes place over a wide geographic area in a very short period of time.
Whooping cough and smallpox are epidemic diseases that mostly occur in the region of the United States.
The situation of diabetes is the highest epidemic but it does not follow the pattern of infectious diseases. This can not spread quickly and affects many individuals at the same time.
Therefore, an example of a pandemic is the black death. Thus, the correct option is B.
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. An animal that has body parts that are arranged around a central point has: (1 point) bilateral symmetry. radial symmetry. asymmetry. a distinct head and tail end
An animal with body parts arranged around a central point is said to have radial symmetry. Examples include sea anemones and jellyfish. This is commonly found in aquatic animals, especially those fixed to a substrate.
Explanation:An animal with body parts arranged around a central point, like the spokes of a bicycle wheel, is said to have radial symmetry. Examples of organisms with this characteristic include the sea anemone or jellyfish. They are also seen in many aquatic animals, especially those that attach themselves to a base, like a rock or a boat, and feed by filtering nutrients from the water flowing around them. In contrast, bilateral symmetry is when there's only one plane through which an animal can be divided into mirror-image halves, namely a front (anterior) and back (posterior) or head and tail end. Animals with asymmetrical shapes don't possess any symmetry or pattern in their body arrangement, such as sponges.
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Why is death by predator more natural or right compared to death by starvation
Compare how mean and median are alike? How are they different?
What are atoms made of ?
A. Smaller molecules
B. Smaller Atoms
C. Subatomic particles
D. Proton clouds
how do animal cells obtain food and get energy?
Animal cells obtain nutrients and energy by consuming other organisms. The complex macromolecules from these organisms are then converted into simpler molecules through digestion and absorption. These simple molecules, along with ATP derived from the harvested energy, are then used to carry out cellular functions.
Explanation:All living organisms need nutrients to survive. Animals, unlike plants, obtain their nutrients and energy by consuming other organisms. The food eaten by animals typically consists of proteins, fats, and complex carbohydrates. However, in order for animal cells to function, these macromolecules must be converted into simple molecules, such as amino acids, lipid molecules, nucleotides, and simple sugars.
This conversion process is a multi-step one that involves both digestion and absorption. In the digestion process, the food particles are broken down into smaller components by both physical, such as chewing, and chemical means. Following digestion, these broken down components are then absorbed by the body during the absorption process.
Additionally, all organisms must harvest energy from their environment and convert int into ATP (adenosine triphosphate), the main energy currency in cells, in order to carry out various cellular functions.
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How is the population of rabbits related to the population of coyotes? What happened to the rabbits between 1995 and 2000? How did this affect the coyote population?
In the water cycle, water vapor evaporates into the atmosphere and forms clouds through condensation. What happens in the atmosphere to the water in order for the clouds to form?
Answer:
The correct answer is C)
Explanation:
why would competition be considered a limiting factor within an ecosystem
Competition could be considered a limiting factor within an ecosystem because as the populations grow, they will compete for shelter and available resources. Also, as populations become denser, the risk of disease increases. The competition can be considered as a limiting factor within an ecosystem because there is a limited supply of resources that can be used and consumed.
Which of the following statements is true?
A. The Industrial Revolution negatively impacted agriculture.
B. The world's food supply is slowly decreasing.
C. Hybrid plants are always better than the plants they are bred from.
D. The world's production of food is unequally distributed.
Answer:
B. The world`s food supply is slowly decreasing.
Explanation:
Since human population is getting growing little by little, and the need of meat that is necessary to feed the population, is reducing the green areas in the world to be planted by vegetable food. Also the are needed to live, work and move is reducing this areas around the world, as humankind, we have less green areas to plant our food.
Which of the following elements will have the lowest atomic mass?
Hydrogen: 1 proton and no neutrons
Nitrogen: 7 protons and 7 neutrons
Oxygen: 8 protons and 8 neutrons
Neon: 10 protons and 10 neutrons
Answer:
A because hydrogen has 1 proton and no neutrons yet with everything else it has over 1 and over 1 neutrons
i do flvs and A is right :)
Explanation:
What is a reactant ?
Answer:
Explanation:
A reactant is a substance that take part or begin a chemical reaction and it is consumed during the reaction to form products. Reactant is on the left of the reaction.
For examples during photosynthesis, the reactants are carbondioxide, water and sunlight that give the product glucose and oxygen.
Carbondioxide, water and sunlight start the reaction and are consumed to produce glucose and oxygen.
an atom that makes up gold is the same as an atom that makes up silver true of false
atom are mostly empty space true and false
if an atom gains an electron, it will have a positive charge true or false
The nucleus of an atom is the center of an atom and is made up of protons and neutrons