What role does the nitrogen cycle play in the life cycle of a plant? ( please help me! thank you! )
Answer:
Assimilation
Explanation:
This is how plants absorb nitrates from their roots. Then the nitrogen gets used in amino acids, nucleic acids, and chlorophyll.
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Answer:
Group A
Explanation:
Answer:
C. Group A
Explanation:
First, let's define accuracy and precision.
Precision: the measurements are all close to each other
Accuracy: the measurements are close to the true value.
Let's examine the answer choices.
A. Group C: 32.1 g, 35.0 g, 25.0 g
This is not accurate or precise. The measurements are far from each other and only one is close to 25 g.
B. Group D: 20.0 g, 25.0 g, 30.0 g,
The measurements are relatively accurate and precise. They are within 5.0 grams of each other and the true value.
C. Group A: 28.5 g, 28.4 g, 28.5
The measurements are the most precise. They are all within 0.1 gram of each other. They are also somewhat accurate.
D. Group B: 25.5 g, 25.0 g, 24.8 g
The measurements are not precise or accurate. There is one measurement that is far from the true value and the other measurements.
Therefore, the most precise measurements are from Group A.
What is the basic energy source of all cells?
The basic energy source is Adenosine triphosphate that are formed in mitochondria.
What is mitochondria?Mitochondria are membrane-bound cell organelles that produce the majority of the chemical energy energy to operate the cell's biochemical reactions (mitochondrion, singular).
Adenosine triphosphate, abbreviated ATP, is a chemical compound that cells use to store and deliver energy. All types of cells use ATP as their primary energy source.
Thus, the basic source of cell's energy is ATP.
For more details regarding mitochondria, visit:
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identify the part of the following plant which can be used from which can be used vegetative propagation
Answer:
poooooooooooooooooooooop
Explanation:
Which resource does NOT need to be cycled by ecosystems because a continuous, unlimited supply is available?
Answer:
Solar energy
Explanation:
Solar energy is the resource that doesn’t need to be cycled by ecosystems because a continuous, unlimited supply is available.
The Sun provides the solar energy which is very important in plant’s food production and it isn’t dependent on the ecosystem and seasons. This is because the Sun provides light during the day and we experience daytime all year round. This is why the solar energy has a continuous, unlimited supply.
What is a stimulus? What is homeostasis? How are irritability and homeostasis related? Describe an example of homeostasis, response and adaptation in a living organism.
Answer:
All is in order.......
stimulus is a thing or event that evokes a specific functional reaction in an organ or tissue.
homeostasis is the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Irritability is that characteristic of living organisms in being aware of, and being able to respond to, a stimulus which tends to disturb the steady state or homeostasis which all organisms prefer for maintaining life.
Humans' internal body temperature is a great example of homeostasis. When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius). Being warm-blooded creatures, humans can increase or decrease temperature internally to keep it at a desirable level.
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Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. The only difference between your control and experimental groups is the type of food the tadpoles receive. What is the independent variable for the tadpole diet experiment?
Answer:
TYPE OF DIET
Explanation:
Independent variable of an experiment is that variable that is subject to manipulation or changing by the experimenter in order to effect a response in the dependent variable.
According to the experiment in this question, the type of diet is changed for different groups of tadpoles in order to see the effect on their average weight. Based on this, the independent/manipulated variable is the TYPE OF DIET administered to each group of tadpole while the growth (average weight) of the tadpoles is the dependent variable.
Which structure provides food for this cell
Answer:
The chloroplast
Explanation:
It makes sugars that feed cell's machinery
I need help with answering the questions!
The nucleolus __________. The nucleolus __________. assembles ribosomes synthesizes ATP stores chromatin synthesizes proteins
Answer:
The correct answer is: assembles ribosomes.
Explanation:
The nucleolus is the largest structure in the nucleus of a cell body, granular, and round structure. The nucleolus is made up of components like RNA and proteins In the center of the nucleus of a cell.
This is associated with the synthesis of ribosomes and the formation of the rRNA or ribosomal RNA. The ribosomal RNA and proteins combine together to form subunits of the ribosomes that are move out of the nucleus to the cytoplasm in order to perform their function.
Thus, the correct answer is: assembles ribosomes.
Barometers, instruments that measure atmospheric pressure, were once the best way to predict that a hurricane was coming. Today, scientists
still study the changes in atmospheric pressure caused by hurricanes. They can also track hurricanes using satellite photography. What does the
change in how scientists study hurricanes indicate about scientific progress?
Scientists always look for new questions to investigate.
Scientists always use new variables when performing investigations.
Scientists must often choose between disagreeing data.
Scientists must often find ways to combine data from different sources.
Next
Answer:
Scientists always look for new questions to investigate.
Explanation:
Every scientific investigation begins with an observed problem, which in turn leads to a scientific question. This scientific question is the basis of the scientific method that leads to new discoveries.
In this question, barometers were once the best way to predict that a hurricane was coming. However, in recent times, hurricanes are now tracked using satellite photography. This new discovery about studying hurricanes is as a result of new questions that emerged. The new scientific questions, which are testable, led to a change in how scientists study hurricanes indicate.
A biological system that includes living things and nonliving thingsIs called an?
Answer:
I guess its Ecosystem!!!!!
Which of the following would you report to the nurse?
-Oral Temperature 98.0,pulse 68 & irregular, Respiration’s 16, B/P 102/64
-Tympanic Temperature 101.6, Pulse 104, Respiration’s 18, B/P 132/84
-Oral Temperature 99.2, Pulse 96, Respiration’s 18, B/P 106/70
-Oral Temperature 98.0, Pulse 84, Respiration’s 20, B/P 122/86
-Tympanic Temperature 99.2, Pulse 62, Respiration’s 18, B/P 180/110
-Tympanic Temperature 97.8, Pulse 52, Respiration’s 14, B/P 126/72
Answer:
the second to last one
Explanation:
BP is extremely high?? average is 120/80, also elevated temperature.
Describe why this is a controlled experiment.
A. Only one variable is changed
B. two variables are changed
C. the plants grew tall in the control group
D. the plants grew tall in the experiment
All numbers along both axes need to be evenly spaced truth or false
Answer:
37shhsjshxhxbshjdksnxjejs
In nature, mutation rates are usually ______ to maintain alleles that are not favored in a population by natural selection.
In nature, mutation rates aren't usually high enough to maintain alleles that are not favored in a population by natural selection.
While in the wild, many populations are led by natural selection. This means that favorable traits are passed down through generations, while unfavorable traits are not. Traits that are best suited for the environment of the organism will prevail to help the chance of survival.
Mutation rates usually aren't high enough to create traits that are unfavorable to an organism. While mutations are still possible, it is still unlikely. The traits that are chosen by natural selection are most likely to be passed onto organisms and their offspring.
The specific molecular changes that occur when a drug binds to a particular target site or receptor are referred to as
Answer:
Drug action.
Explanation:
Drug action can be defined, in short, as the action of the drug on the body. The effects of almost all drugs are a consequence of their interaction with macrocellular components of the body. These interactions modify the function of the relevant component and thereby initiate the biochemical and physiological changes that characterize the response or reaction to the drug. Receptors are cellular structures that have a specific purpose and that are activated in their action by different substances.
explain why molecules do not have electric charge
Answer:
Explain why molecules do not have electric charges. individual molecules contain the same number of electrons and protons. they cancel each other out. ... Molecules form when atoms bond together with (covalent) [kohVAYlent] bonds.
A lizard sitting on a rock would be considered the ______level of organization.
Answer:
Organism
Explanation:
The organism level of organization is the level of organisation that comes after the organ system level of organisation. The organism level of organisation is the level at which the living system is complete and comprises of the interconnection and synergy of the lower organization levels.
At the organism or life form organizational level, all the characteristics of living things are manifested.
The basic living system, a functional grouping of the lower-level components, including at least one cell.
Pasta, Fruit, Bread, and Rice are examples of what type of food?
A. Proteins
B. Nucleic Acids
C. Carbohydrates
D. Lipids
1
Which of the following is true about the locations of earthquakes, volcanoes, and tectonic plate boundaries?
A. Earthquakes are commonly located near plate boundaries, but volcanoes are not.
B. Volcanoes are commonly located near plate boundaries, but earthquakes are not.
C. Earthquakes and volcanoes are both commonly located near plate boundaries.
D.
Neither earthquakes nor volcanoes are located near plate boundaries.
Answer:
Weird.. My answer was both of them were close. Huh.
Explanation:
What are the four biogeochemical processes that cycle matter through the biosphere?
Answer:The water cycle, carbon cycle, nitrogen cycle, and phosphorous cycle are the 4 types of processes that cycle matter through the biosphere. By what 2 processes is water cycled from land to the atmosphere
Explanation:
What is the primary function of photosynthesis?
Answer:
convert solar energy into chemical energy and then store that chemical energy for future use.
Explanation:
hope it help
Explanation:
to convert solar energy into chemical energy and then store that chemical energy for future use.
Data Collection: Pinky’s science fair project in junior high focused on an observation that the crickets outside her window chirped less frequently when the temperature was colder. Fun Fact: There are free “cricket chirp calculators” online you can explore, which didn’t exist freely online when Pinky was in junior high. Consider if data was collected consisting of the average number of cricket chirps at different temperatures in her backyard. 10. Which variable would be an independent variable?
Answer:
Different temperatures in her backyard
Explanation:
The independent variable would be the different temperatures in Pinky's backyard.
The independent variable is a variable whose value is not affected by another variable during research. It is a variable that directly affects the actual variable that is measured - the dependent variable. The independent variable is usually varied in order to see the kind of effect it will produce on the dependent variable.
In the case of Pinky, the different temperature at the backyard affects the number of cricket chirps. Hence, the temperature is considered the independent variable while the number of cricket chirp is considered the dependent variable.
will they give you new textbooks im 10th grade now when I was in 9th grade saw 10th graders are using same biology textbook and im worried if school will not give me new textbook for this semester
will school me new textbook ?
Accurate answer pls
Answer:
It depends on the school you are going to...And if they don't give you any new biology textbook then it means that all you will be learning in grade 9 and 10 is already in the textbook which you will have to continue using.
What does impermeable mean ?
Explanation:
Impermeable means not allowing fluid to pass through.
A solution of one part of egg albumen mixed with two parts of water in a test tube is used to test for what?
Answer:
It is a test to check the protein's solubility.
Explanation:
Proteins have varying levels of solubility and it is necessary to carry out tests that prove in which aqueous media the proteins are more likely to have high levels of solubility. This facilitates the execution of scientific works that develop products that work with proteins.
The level of solubility of proteins depends on the distribution of the polar and nonpolar groups of this molecule.
The most common test is done by adding water and protein to a beaker. An example of this is done by adding part of egg albumin mixed with two parts of water.
which nutrient produces a purple colour when mixed with biuret solution A. fat B. protein C. reducing sugar D. starch
Answer: B. Protein
Explanation: biuret solution is a chemical which is used to test for the presence of protein in any substance and it turns purple when protein is present.
social implications on performance enhancing drugs
Answer:
hey resa your answer here
if any one can help me in biology sem. 2 pls don't hesitate to say somethin
Answer:
Mitotic inhibitors are used in cancer treatment, because cancer cells are able to grow and eventually spread through the body (metastasize) through continuous mitotic division. Thus, cancer cells are more sensitive to inhibition of mitosis than normal cells.