Answer:
Independent variable: Glass of milk
Dependent variable: Time of sleep
Control variable: same type of milk
Explanation:
Independent variable in an experiment refers to the variable that the experimenter manipulates or changes in order to get a response in another variable (dependent). In this case, the independent variable is the GLASS OF MILK taken before bed.
Dependent variable is that variable that is measured in an experiment. It is the variable that responds to the changes made to the independent variable. In this experiment, the dependent variable is the TIME OF SLEEP of the students.
A control variable or constant is the variable that is kept unchanged throughout the course of the experiment in order not to alter the outcome of the experiment. In this experiment, a control variable can be the SAME TYPE OF MILK taken by each student.
All living things are composed of cells. Cells are the basic unit in living things. All cells are produced from other cells.
Answer:
yes that is correct, its part of the cells of life theory
Explanation:
How is a scientific theory developed
Answer:
Scientific theories are created through the process of the scientific method. Observation and research lead to a hypothesis, which is then tested. ... Over time, a hypothesis can become a scientific theory if it continues to be supported by additional research.
hope it helped :)
what is the function of the mitochondria
Answer:
The mitochondria are organelles that generate the chemical energy needed to power the cell.
Explanation:
true or false... ecosystems include all the different populations in a specific area.
Redacta un escrito dónde expliques como está formado(un ecosistema), menciona ejemplos y como sigue una estabilidad por el equilibrio entre los factores físicos y biologícos en el ecosistema
Answer:
Un ecosistema esta formado por facotres abioticos y bioticos.
Los factores bioticos son aquellos que presentan signos vitales, es decir que cumplen con la vida, metabolismo, respiracion, entre otras funciones vivas.
Los factores abietos son aquellos que no tienen vida pero con los que los factores bioticos intercambian energia, un ejemplo de esto son las rocas, los vientos, los sedimentos, la tierra fertil.
Los factores bioticos serian los organismos vivos como los animales, que al funcionar como sistemas abiertos de intercambio de energia constante mantienen un equilibrio fisico biologico con los factores bioticos.
Explanation:
Los ecosistemas cumplen con una cadena que no debe romperse ni faltar ningun eslabon, si esta continuidad se interrumpe con la extincion de una especie como animal o vegetal el ecosistema variará, y cambiara toda su conformacion.
Es un conjunto de factores bioticos y abioticos en armonia que se complementan e intercambian energia entre si de manera ordenada en eslabones, si uno de estos eslabones se rompe, se extingue, o se modifica por intervencion del hombre u otros factores TODO el escosistema se verá modificado o afectado.
Which of the following is not a defining characteristic of water
Low specific heat capacity
Polarity
Cohesion
Surface tension
Answer:
low specific heat capacity
Explanation:
you were asked to make a speech on how you would contribute to reduction in resource depletion which idea would you promote?
a.) water conservation at school
b.) uses of phones in the classroom to learn about resources
c.) improving eating habits
d.) involvement in sports
Answer:
Its (A) water conservation at school
Explanation:
Just took quiz on ED 2020
Biomolecules are essential to all living things. Which biomolecule is "C" from the above table?
Answer:
Biomolecules are essential to all living things. Which biomolecule is "C" from the above table?
Explanation:
Our muscles contain lots of protein. This protein enables the muscles to _____________.
Lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production.People who are lactose intolerant may not feel well after eating foods containing lactose. Identify the enzyme
Answer:
Lactose intolerance is the inability to digest a sugar called lactose that is found in milk and dairy products. Normally when a person eats something containing lactose, an enzyme in the small intestine called lactase breaks it down into simpler sugar forms called glucose and galactose.
Explanation:
How is skin cell relate to its function
Answer:
Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body.
Explanation:
Prokaryotic cells do not contain many of the organelles that eukaryotic cells have. Prokaryotic cells do have a primitive form of _____________.
Answer:
Figure 1. A typical prokaryotic cell contains a cell membrane, chromosomal DNA that is concentrated in a nucleoid, ribosomes, and a cell wall. Some prokaryotic cells may also possess flagella, pili, fimbriae, and capsules.
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Prokaryotic cells do not contain many of the organelles that eukaryotic cells have. Prokaryotic cells do have a primitive form of Ribosomes.
What are Prokaryotic cells?Prokaryotic cells may be defined as the types of cells that lack a well-defined nucleus and other membrane-bound cell organelles. The genetic material of a prokaryotic cell is a single chromosome made up of a single strand of DNA.
A Prokaryotic cell typically has a cell membrane or plasma membrane that functions or operates like a protective cover. Golgi apparatus, mitochondria, and chloroplasts are significantly absent in prokaryotic cells. This is because they are membrane-bound cell organelles.
The traces of ribosomes are required for the process of protein synthesis in order to accomplish metabolic activities required for the survival of prokaryotic organisms.
Therefore, the primitive form of ribosomes is generally present within the prokaryotic cells.
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Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In the case, the stored chemical energy in the logs was changed into
Answer:
The options are
A) electrical energy.
B) mechanical motion.
C) heat and light energy.
D) electrical and heat energy.
The answer is C) heat and light energy.
Explanation:
Chemical energy in the wood is lit up by fire and a burning process begins to occur. Burning involves a substance being consumed by fire and fire aids in the conversion of some forms of energy to mainly light energy as a result of the burning flames and also to heat energy as a result of the high temperature in the form of heat which the fire brings into play.
This validates the stored chemical energy in the logs being changed into light and heat energy.
True or false A hypotheses has been tested many times by different independent researchers but a theory has not
Answer:
true
Explanation:
yea a theory has not tested hypothesis
Answer:
Testing a hypothesis can lead to one of two things: the hypothesis is confirmed or the hypothesis is rejected, meaning it either has to be changed or a new hypothesis has to be created. This must happen if the experiments repeatedly and clearly show that their hypothesis is wrong. It doesn’t matter how elegant or supported a theory is—if it can be disproven once, it can’t be considered a law of nature. Experimentation is the supreme rule in the scientific method, and if an experiment shows that the hypothesis isn’t true, it trumps all previous experiments that supported it. These experiments sometimes directly test the theory, while other times they test the theory indirectly via logic and math. The scientific method requires that all theories have to be testable in some way—those that can’t are not considered scientific theories.
Explanation:
so in short True , can u mark me brainlyest
Fungus-like protists feed on decaying leaves. They photosynthesize in the presence of sunlight. They reproduce using spores. They use pseudopods to engulf any foreign material and convert it into food. They are prokaryotic in natur
Answer:
Fungi like protist feed on decaying leaves.
They reproduce by using spores.
They use pseudopods to engulf any foreign material and convert it into food.
Explanation:
Fungi like protist are Majorly molds and they are common seen on decaying organic matter and they normally absorb nutrients while feeding.
They are much similar to fungi and reproduce through spores even as fungi reproduce. They can be found in soils, lawns, trees and they do not have major cell wall divisions.
The use their pseudopods to engulf foreign material and convert it to food which supply them with nutrients.
Examples are slime molds and water molds.
Based on the second law of thermodynamics, how much biomass of phytoplankton would be needed to produce 1 kilogram (kg) of large fish in this food web?
Answer:
1000kg
Explanation:
The 10% rule states that 10% of the energy stored as biomass at one trophic level, ends up as biomass at the next trophic level. So, in a 4 levels food web, we need 1000 kg of the first level -phytoplankton- to produce 1 kg of the last level -large fishes-.
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From the energy that reaches the earth's surface, only 0.1 or 1% is absorbed by autotroph organisms or producers. This small percentage of this energy flows through all organisms in the ecosystem -from autotrophs to heterotrophs- until it dissipates in the environment.
Only 10% of energy is tranferred from one level to the next one. This assessment is called The 10% rule. It states that only about 10% of the energy stored as biomass at one trophic level, ends up as biomass at the next trophic level.
The progressive reduction of energy determines the number of trophic levels (4 or 5).
Let us analyze the given example.
Phytoplankton ⇒ Zooplankton ⇒ Small Fishes ⇒ Large Fishes
According to the 10% rule, to support 1 kg of large fish, 10 kg of the anterior level -small fish- is needed.
To get the biomass of each level needed to support 1 kg of large fish, we need to multiply each level biomass by 10. This is:
To get 1 kg of large fish: 1 kg x 10 = 10Kg of small fish To get 10 Kg of small fish: 10 kg x 10 = 100Kg of zooplanktonTo get 100 kg of zooplankton: 100Kg x 10 = 1000 kg of phytoplankton.So, in this example, to produce 1 Kg of large fishes, we need 10 kg of small fishes, 100 kg of zooplankton, and 1000Kg of phytoplankton.
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Which is the closest synonym for the word caravan? A Parade B Region C Breed D District
Answer: A
Explanation:
Caravan is just a parade in a different font
I would say the closest synonym in that list would be Parade. But to be honest those are weird choices. A Parade does have something to do with a caravan. You wouldn't have any of those included in a parade except a caravan.
In a coal-burning power plant, the coal is an example of a system _____.
A. Product
B. Throughout
C. Output
D. Model
E. Input
In a coal-burning power plant, the coal is an example of an Input System. So, the correct option is (E).
What is Coal burning power plant?Coal-burning power plants are defined as those plants that produce electricity by burning coal in boilers to generate steam. The steam produced under extreme pressure flows into a turbine, which spins a generator to create electricity, then it cools, condenses back into water and returns to the boiler to start the process.
About 50% of coal is used as the primary fuel for power generation. The main function of a coal fired thermal power plant is to convert the energy available in the coal into electricity where as power plants work by using multiple stages to convert the stored energy coal for usable electricity which is an example of input system.
Thus, In a coal-burning power plant, the coal is an example of an Input System. So, the correct option is (E).
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Which of the following is a correct definition for "interdependence"? A. no organism is allowed to go off on its Own B. no ecosystem is able to thrive off of another ecosystem C. no organism can survive without the help from another organism
Answer:
C
Explanation:
the definition of interdependence is the dependence of two or more people or things on each other.
Which best describes an idea that has scientific consensus?
All scientists must support the idea.
Few scientists think the idea is valid.
Most scientists disagree with the idea.
Most, but not necessarily all, scientists agree with an idea.
Answer:
the last option is the best
Explanation:
no idea that will ever pass without disagrement from other scientists who generate and defend the opposite ideas
All scientists must support the idea best describes an idea that has scientific consensus.
Scientific consensus is the collective judgment, position, and opinion of the community of scientists in a particular field of study. Consensus generally implies agreement of the supermajority, though not necessarily unanimity.Why is consensus important for scientist?It tells things that have already learned, and it let us know when things have stopped being debated in the sciences.Consensus is achieved through scholarly communication at conference, the publication process.To know more about scientific consensus here
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which term references the approach sociologists use as a road map for how to view the world? A. Determinant B. Mindset C. Theoretical framework D. Physical grant
Answer: Theoretrical framework
Explanation: got it right on apex
what are 3 characteristics for evaporation
Answer:
The three characteristics for evaporation are heat, atmospheric pressure and air movement. Hopefully this helps.
Explanation:
Both a plant and a fungus are composed of cells. According to the cell theory, the cells of
A a fungus can take in nutrients but are unable to produce new cells.
B
both organisms are able take in nutrients, and both can produce new cells.
C
a plant can produce new cells but are unable to take in nutrients,
D
both organisms are able to take in nutrients, but only plants can produce new cells.
Answer:
A
Explanation:
New cells can only come from already existing cells, therefore neither plants nor fungi can create new cells
According to the cell theory, the cells of both plant and fungal organisms are able take in nutrients, and both can produce new cells. Thus option B is correct.
What are the difference between plant cell and fungal cell ?Plants are autotrophic eukaryotic organism with different parts like root, stem, leaves etc. Fungi are the heterotrophic eukaryotic organism with undifferentiated body.
plant cell have cell wall made up of cellulose while fungal cell wall are septate or aseptate composed up chitin.
Plant cell are uninucleate but fungal cell are both uninucleate or multinucleated.
Chloroplast present in plant cell but absent in fungal cell.
Plant cell membrane have phytosterol where as fungal cell membrane have ergosterol.
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Look at the following, and decide if they are
carbohydrates or not.
What type of rock (granitic or basaltic) would be more likely to contain the mineral quartz Why?
Answer:
I think granitic rock would contain more mineral quartz.
Explanation:
Because the magma cools slowly, crystals of different minerals have time to grow. Molecules in the lava do not have time to arrange themselves to form large crystals. Extrusive rocks have crystals that are too small to see without magnification. A common example of an extrusive igneous rock is basalt.
explain how smoking may reduce the efficiency of the function of alveoulus
Answer:
"Over time, the toxins from inhaled cigarette smoke break the thin walls of alveoli, leaving larger, less efficient air sacs. The sacs also begin to lose their bounce, making it harder to bring in the oxygen and expel carbon dioxide. 3 Both can become partially trapped in the lungs".
protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud. how can i say this different
Answer:
the nucleus in a small cloud
Explanation:
PLZ HELP ASAP THANKS
image above^^^^
Appreciate your help :)
Answer:CH4, H2O2, N2O
Explanation:
A compound is something that has more than one element in it. You can tell because Hydrogen (H) and Oxygen (O) are separated by a 2, meaning two hydrogen and two oxygen are bonded together
A scientist is studying a cell and can clearly see that it has ribosomes and mitochondria. Which statement best describes how the cell could be classified?Which structure is unique to eukaryotic cells?
Answer:
The cell is eukaryotic because it contains mitochondria.
nucleus
Explanation:
The statement that best describes the way in which the cell would be classified is that the cell is eukaryotic because it contains mitochondria. The correct option is D.
What is eukaryotic cell?A eukaryote would be any cell or life form with a well-defined nucleus. The nucleus of a eukaryotic cell is surrounded by a nuclear membrane, which contains well-defined chromosomes.
The main difference between these two varieties of organisms is that eukaryotic cells have such a membrane-bound nucleus, whereas prokaryotic cells do not. Eukaryotes stockpile their genetic information in the nucleus.
Prokaryotes are organisms that lack a nucleus and various organelles in their cells.
Prokaryotes are classified into two groups namely bacteria and archaea, each of which has its own evolutionary lineage, according to scientists.
Thus, the correct option is D.
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Your question seems incomplete, the missing options of the question are:
The cell is prokaryotic because it contains ribosomes. The cell is prokaryotic because it contains mitochondria. The cell is eukaryotic because it contains ribosomes. The cell is eukaryotic because it contains mitochondria.Leslie is investigating which brand of cell phone has the longest lasting battery.
What is the dependent variable?
Answer:
The battery
Explanation:
The battery is the dependent variable because it can change based on which brand of phone.