Answer:
A factor that is purposely left the same.
Explanation:
A controlled variable should not be changed throughout an experiment or else it will affect the outcome of each individual trial.
A ________ is a chemical substance that organisms require to live.
Explanation:
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Nutrients is your answer
Nutrients are the substances that are needed by the organism in order to survive.
Answer:
a nutrient is a chemical substance that organisms require to live.
Explanation:
Bacteria grow best in foods that are highly acidic true or false
Answer:
I think this is false. Bacteria grow best in an environment that is neutral or slightly acidic.
Which best describes DNA?
A. a molecule that looks like a twisted ladder
B. both answers about DNA are correct
C. a molecule present in all living things
Answer:
The answer is b
Explanation:
the molecule present in all living things
Being able to respond to change (irritability) is one of the necessary life functions. Which body system is mostly responsible for this function
Answer:
The correct answer is : nervous system.
Explanation:
Irritability is one of the key aspect life which is deal with being able to response or change according to the stimuli that is occur and disturbs the homeostasis of the body which is maintaining the body environment for living.
Nervous system is deal with the irritability by sensing the stimuli in which change occur it can be physical stimuli such as temperature, light, or sound or chemical stimuli such as pH, ions, amount of required chemical or biological stimuli such microbes in body. All these stimuli are sense b the sensory neurons and then send these signals to brain or spinal cord in order t act and respond accordingly to maintain homeostasis.
Thus, the correct answer is : nervous sytem.
When scientists make a statement or claim about what will happen in the future based on a past experience or evidence, they are making a/an _____
Answer:
Prediction
Explanation:
A prediction is a scientific statement or claim about something that will happen in the future, using prior knowledge and reasoning.
So, when scientists predict something to happen in the future, they are making a prediction.
The most common bacteria to cause infections from soaking in a hot tub is__________. Escherichia coli Pseudomonas aeruginosa Staphylococcus epidermidis Staphylococcus aureus
Answer:
pseudomonas folliculitis
the process os sharing results and working together to develop new hypothesis and expirments is known as
Answer:
The process of sharing results and working together to develop new hypotheses and experiments is known as collaboration.
Explanation:
Which one of the following molecules would be most likely to travel by facilitated diffusion? A. sodium ions B. glucose C. oxygen atoms
Answer:
The correct answer is : the sodium ion and glucose both shows the facilitated diffusion.
Explanation:
Facilitated diffusion is form of diffusion of molecules of solutes with the help of transport proteins along their concentration gradient on the plasma membrane, however it is a passive transport as its does not require energy to move in or out of cell.
Oxygen can move through the membrane directly by simple mean of diffusion. however, Other molecules like amino acids, ions, glucose and many more need a integral pore, channel or transport molecule to pass through the membrane or with facilitated diffusion.
Glucose transporters involves to help in movement of glucose through the membrane along the concentration gradient it shows facilitated diffusion. Sodium ions also move through along concentration gradient by protein channels formed by transport proteins through hydrophobic membrane.
Thus, the sodium ion and glucose both shows the facilitated diffusion.
Answer:
B. Glucose
Explanation:
Facilitated diffusion is important for the living organisms as there are lipid insoluble, polar and large molecules that needs assistance to diffuse across plasma membrane. These molecules are large and polar in nature so they need assistance. The ion channels or carrier proteins allow such molecules ( glucose) to cross the membrane. The two classes of protein that facilitates the diffusion are channel protein and carrier protein.
Which of the following characteristics of living things best explains why your legs and arms
get longer and stronger as you get older?
Living things respond to their environment.
O Living things maintain internal balance.
O Living things are made up of units called cells.
O Living things grow and develop
Answer:Living things grow and develop
Explanation:Example a baby is kangaroo is 2 inches long in four months it is 1 foot long via the kangaroo grew/developed
Option D is correct. Living things grow and develop best explains why your legs and arms get longer and stronger as you get older.
The characteristics of Living Things:
Living things basically are made of cells. Cells are structural and functional unit of living things.
Living things can move on its own. The movement can be fast or very slow.All living things have a metabolize.Living things can grow.Living things response to environment.All living things Reproduce to pass on its genes.Cells divide and grow and divide which increase the size of organism.
Therefore, Option D is correct. Living things grow and develop best explains why your legs and arms get longer and stronger as you get older.
To know more about Living things,
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HELPPPP PLSSSSSSS !!!!
Answer:
Option 1
Explanation:
Protein gives you energy. This option has the most amount of protein and the least amount of calories.
Answer:
option 4
Explanation:
lots of energy but low in calories
The _____ was a direct result of the Industrial Revolution.
O improvement in quality of life
O shift to domestic foods over wild foods
O decrease in urban areas
Answer:
Option: Improvement in quality of life
Explanation:
The industrial revolution resulted in a significant improvement in the quality of life for the working class. However, it was slow, irregular, and sometimes missing through many years. The evidence of increasing incomes and improving mortality rates indicate significant improvement took place in the pattern of living of the working class. These factors suggest that the quality of life at least continued firm, and presumably developed. This progress took place with constant warfare with factory owners and government intervention. The Industrial Revolution introduced new machinery, the transformation of cities. The rapid growth of cities and towns beginning to take place with a change in society.
Carrie is conducting an experiment on a solution. The solution's initial pH is 3.2. Then, as Carrie gradually adds Compound X into the solution, the pH increases to 9.8. Which is the most likely identity of Compound X? A. a strong acid, such as hydrochloric acid (HCl) B. a strong base, such as sodium hydroxide (NaOH) C. a salt, such as sodium chloride (NaCl) D. a solvent, such as water (H2O)
Answer:
B
Explanation:
The correct answer would be a strong base, such as sodium hydroxide (NaOH).
The pH of a substance represents the degree of acidity or basicity of the compound. The pH scale ranges from 0 to 14 with 0 being the most acidic, 14 being the most basic, and 7 being a neutral pH. a pH below 7 is acidic and above 7 is basic.
A solution with an initial pH of 3.2 is acidic and in order to raise the pH to 9.8, it will require a strong base. Hence, compound X must be a strong base such as sodium hydroxide.
Correct option: B
Answer:b
Explanation: trust me
One of the main functions of proteins is the creation of ________.
Answer:
amino acids.
Explanation:
Answer:
Amino acids
Explanation:
I searched it up
Carlos is analyzing the results of a recent scientific study about gravity. Scientists recorded that the experimental value of gravity was 10.24 m/s² and the general accepted value of gravity is 9.81 m/s². Calculate the percent error of the experimental versus accepted values of gravity. 5.01% 4.38% 2.66% 9.27%
Answer:
4.38%
Explanation:
Subtract the accepted value from the experimental value.
Take the absolute value of step 1.
Divide that answer by the accepted value.
Multiply that answer by 100 and add the % symbol to express the answer as a percentage.
Answer:
B) 4.38%
Explanation:
Correct on Edge.
Hope this helped!
What are the five parts of skill related fitness. Please select all 5 below. Question 1 options: Speed Muscular Strength Coordination Agility Balance Aerobic Endurance
Answer:
There are only four parts of skill related fitness in the options; they are:
Speed
Agility
Balance
Coordination
Explanation:
Physical fitness refers to the ability to perform physical activities well without fatigue. In other words, being physically fit refers to a state of general wellbeing. Physical fitness can either be health-related or skill-related. The skill-related components are six in number viz: agility, power, balance, coordination, speed and reaction time.
However, only four of these skill-related parts of physical fitness are mentioned in the options of this question. They are:
- Speed: This refers to the ability to run a distance in a short time frame.
- Agility: This is the ability to move easily and quickly in different directions
- Balance: The ability to maintain an upright body position during training or physical activity
- Coordination: The ability to make physical senses of one's body (eye) cooperate with the limbs (hands and feets) during a physical activity.
Note that, Aerobic Endurance and Muscular strength are health-related components of fitness
Explain why cells are the basic unit of living things
Answer: Cells make up the smallest level of a living organism such as yourself and other living things. The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the cell is called the fundamental unit of life.
Explanation:
Answer:
Cells make up the smallest level of a living organism such as yourself and other living things.
Explanation:
The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the cell is called the fundamental unit of life.
A scientist conducted an investigation about the effects of diet on disease resistance in mice and made surprising observations. The mice with a genetic ear mutation seemed to show similar patterns of resistance compared to mice with normal ears. Based on this information, what will the scientist most likely do next?
Explanation:
When there is alteration in the DNA sequence in the chromosomes of an organisms which affects the protein expression and therefore the organism involved,the genetic condition is called mutation. its effects can be positive or negative,But,negative effects is most common.
It can be germline in which the genes is affected,or somatic in which the protein expression of the body cell is affected.
Answer:
The fact that the mice with genetic mutation shows similar patterns of inheritance show that some genes in the mice might be playing a dominant role in diseases resistance in this animals.This is evident since the patterns were peculiar to mice with mutated ears,and not observed in normal ears.
Therefore the experiment should be carried out again to confirm the influence of these genes on the resistance
Which of the following statements describe a pure substance?
Answer:
Pure substances are defined as substances that are made of only one type of atom or molecule. The purity of a substance is the measure of the extent to which a given substance is pure.
In the carbon cycle, carbon is found in a. the atmosphere b the soil c. living organisms d. all of the above.
Answer:Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) in the lithosphere as fossil fuels and sedimentary rock deposits such as limestone, dolomite and ...
Explanation:
Answer:
d. all of the above
Explanation:
Winding mills are made on hills. Why?
Answer:
Winding mills are made on hills because of air flow and currents.
Explanation:
Winding mills capture wind to turn blades and produce energy. In order to do so, it needs winds! Strong winds, in order to turn the blades. You will notice that if you ever scale a mountain or go higher, it starts to become windier/the wind blows harder.
If the wind mills are placed higher, it can capture these windier conditions, thus moving the wind blades to produce energy. The higher the hill, the stronger the wind current, the more energy it produces.
How does algae reproduce? Select the best answer.
only sexually
both sexually and asexually
only by fission
only asexually
b. both sexually and asexually
Which two processes put water into the atmosphere
Evaporation and Transpiration!
Explanation:
Evaporation and transpiration change liquid water into vapor, which ascends into the atmosphere due to rising air currents.
Answer:
Vaporation and Transpiration
Explanation:
Although the atmosphere may not be a great storehouse of water, it is the superhighway used to move water around the globe. Evaporation and transpiration change liquid water into vapor, which ascends into the atmosphere due to rising air currents.
An apple, potato, and ______ all taste the same with your nose plugged.
Answer:
An apple, potato, and carrot all taste the same with your nose plugged.
Explanation:
An apple, potato, and carrot all taste the same with your nose plugged.
PLEASE HELP ME ASAP
1) Amino acid is to Protein as ______
is to Nucleic Acid.
Your question has been heard loud and clear.
Amino acids is to protein as nucleotides is to nucleic acid.
Thank you
Amino acids is to protein as nucleotides is to nucleic acid.
What is the composition of nucleic acid ?
Nucleic acids are biomolecule major component of cell which carry genetic material, these are up two types of nucleic acid such as deoxy ribose nucleic acid or DNA and ribonucleic acid or RNA.
DNA is the carrier of the genetic material which is passed from the parents to offspring and nucleic acids are composed of the monomers of nucleotides, these nucleotides are composed of nitrogenous base, phosphate and pentose sugar.
The nitrogenous bases are uracil, cytosine, thymine, adenine, and guanine, pentose sugar such as ribose sugar and deoxyribose sugar and phosphate group.
DNA contains thymine instead of uracil which is present in RNA; Adenine and guanine are the purines having double ring structure while the rest are pyrimidines have a single ring structure. The phosphate group is negatively charged.
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If the bobcat died, what would be able to make food out of it and turn it back into soil?
Decomposers, they break down dead food material.
An object has a mass of 17g. How much water must it displace to float?
17 litre water must it display to float...........
If the NDU gene is amplified inside cells leading to overexpression of the protein, what event is likely to occur under hypoxic conditions?
Answer: Oxygen consumption within the mitochondria will decrease further
Explanation:
If the NDU gene is amplified inside cells leading to overexpression of the protein, the event that is likely to occur under hypoxic conditions is Oxygen consumption within the mitochondria will decrease further
BRIEFLY justify that- Economic and Social health influences the health of an individual so as to the health of the community.
Answer:
economic health influences health of a person by being able to support said character
Explanation:
Answer:
economic health influences health of a person by being able to support said character
Explanation:
What would make the results of this experiment reliable?
HOPEFULLY THIS HELPS
THE ANSWER IS
When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and gets very similar results then those results are said to be reliable. Reliability is measured by a percentage – if you get exactly the same results every time then they are 100% reliable.
30 points for answer with proof
Answer:
C
Explanation:
I try my best I hope that helps