Answer:
This question is incomplete; but from the understanding of the question, it is about identifying the variables in the experiment e.g independent variable, dependent variable, control variable, control group etc.
The variables are as follows:
Independent variable: HEAT at different temperatures
Dependent variable: GROWTH OF MOLD
Constants/Control variables: Same amount of food, Same type of food
Control group: Jars kept at 0°C
Explanation:
A variable in an experiment are those factors that are subject to change. The INDEPENDENT VARIABLE in an experiment is that variable that is manipulated or controlled in order to bring about an outcome. In this Sarah's experiment, the independent variable is the HEAT CHANGE.
The DEPENDENT variable is the variable that responds to the changes made to the independent variable. The response of the dependent variable is dependent on the independent variable. In this experiment, the dependent variable is the GROWTH OF THE MOLDS because it responds to changes in heat (independent variable).
The CONSTANT or CONTROL variables in an experiment refers to the variables that are kept constant or unchanged throughout the experiment. Although they are not part of the experiment but they can affect the outcome of the experiment if changed. The constants in this experiment are the SAME AMOUNT and SAME TYPE OF FOOD given to each jar.
A CONTROL group is the group that does not receive any experimental treatment I.e. In this experiment, the jars placed at 0°C did not receive any heat, hence, they are the control group.
The experimental groups were the jars kept at 90°C and 27°C respectively.
Calculate the density of sulfuric acid if 45 mL of the acid weighs 100g.
Answer:
[tex] \boxed{\sf Density = 2.23 \ g/mL} [/tex]
Given:
Mass = 100 g
Volume = 45 mL
To Find:
Density
Explanation:
Formula:
[tex] \boxed{ \bold{Density = \frac{Mass}{Volume}}}[/tex]
Substituting value of mass & volume in the formula:
[tex] \sf \implies Density = \frac{100}{45} \\ \\ \sf \implies Density = 2.23 \: g/mL [/tex]
What is the largest single cell
Answer:
Caulerpa taxifolia
Explanation:
I don´t have an explanation for it I just know from a test
Explanation:
Biologists used the world's largest single-celled organism, an aquatic alga called Caulerpa taxifolia, to study the nature of structure and form in plants.
It is a single cell that can grow to a length of six to twelve inches.......
The
Ocean is the most geologically active.
A. Indian
B. Pacific
C. Atlantic
D. Southern
Answer:
B; Pacific
Explanation:
More specifically, it's the Pacific Basin because it's located in The Ring of Fire.
How many objective lenses are there, How many total lenses are there in a microscope, and How many adjustment knobs are used to magnify an object? (compound microscope)
Answer:
3 or 4 objective lenses
2 total lenses
2 adjustment knobs (coarse and fine)
Explanation:
I hope this helps you
Is ozone splitting a chemical reaction or a physical reaction?
Statement best explains why water is essential for all living things
Answer:
Its a necessity for all living things
Explanation:
Scientific investigations include many different steps. During a scientific
investigation, which step occurs after a scientist collects data?
A. Form the hypothesis
B. Follow the procedure
C. Plan the experiment
D. Draw conclusions
7. The _____ population was not affected by an increase in the krill population. seal clam squid penguin
Answer:
The clam population was not affected by an increase in the krill population.
Answer:
The answer is "Clam".
Explanation:
What is the difference from adhesion and cohesion ?
Answer:
see answer in the explanation
Explanation:
Adhesion is the force of attraction between different substances, like water.
Cohesion is the force of attraction between molecules of the same substance.
Why isn't movement considered a characteristic of all life?
Answer:
not all living things move
Explanation:
Animals which are living things have the ability to move as well as microrganisms however, plants and certain microrganisms do not have these abilities and yet are still living.
Answer:
Technically, all living things move in some way.
Different animals, like humans, dogs, and goats, can walk and run. Marine animals can swim and dive. Birds and some insects can fly around.
Plants can move, just not the same way animals can. For example, a sunflower will turn to face towards the sun. Although, plants don't have the ability to move from one place to another, or locomotion.
So, movement can be considered a characteristic of life, but locomotion is not. Plants and other living organisms cannot get up and move from one spot to another spot.
The heart is a muscle. The more you exercise it, the stronger it becomes. With this in mind, contrast the resting heart rate of an athlete with that of an inactive person.
What is measured during a
controlled experiment?
Answer:
In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured. :)
3. The following are examples of connective tissue, except:
a. Bones
b. Tendons
c. Skeletal muscle
d. Cartilage
Answer:
C.) skeletal muscle
Explanation:
what kind of psycology is inpart of the study of the impact of natural selection and genetics upon behavior
Answer:
Evolutionary psychology
Explanation:
Evolutionary psychology is the hypothetical perspective of psychology that attempts to describe certain functional mental and psychological traits such as language, perception, memory, and how adaption/ evolution has influenced the behavior of an organism.
I hope this helps you:)
The shuttle system for the transfer of aceytl coa generated in the mitochondrial matrix includes:_____.
a. citrate from the citric acid cycle.
b. citrate lyase in the cytosol.
c. ATP hydrolysis.
d. the production of NADPH by malic enzyme.
e. all of the above.
Answer:
e. all of the above.
Explanation:
Acetyl-CoA is a biochemical agent, in which its main function is to transport acetyl group to the citric acid cycle. It works in metabolic reactions of protein, carbohydrate, and lipid
Acetyl-CoA is transported through the mitochondrial membrane, and enters the cytoplasm of the cell, as the molecule citrate.
The shuttle system for transfer of acetyl-CoA generated in the mitochondrial matrix to the cytosol includes:
1. citrate from the citric acid cycle.
2. citrate lyase in the cytosol.
3. ATP hydrolysis.
4. the production of NADPH by malic enzyme.
Hence, the right answer is option E: All of the above.
to find directions on a map , you would look for a _______
Answer:
compass rose
Explanation: I
hope this helps!
When both participants in a species' interaction develop adaptations in direct response to one another, this could progress into all of the outcomes except:
resource partitioning
coevolution
extinction of one species
competitive exclusion
intraspecific competition
The given case could progress into all the outcomes except intraspecific competition
Intraspecific InteractionIntraspecific interaction is a kind of interaction seen within the same species that compete for basic necessities for survival such as food, habitat, and water. It does not lead to evolutionary changes within the species, therefore they do not develop adaptations in response to the competition
Thus, it can be concluded that the adaptation in direct response to one another could lead to all except intraspecific interaction
Learn more about intraspecific interaction :
brainly.com/question/7182383
When an egg is fertilized and becomes a zygote, the first thing it does is:______ A. Differentiate into specialized cells. B. Begin dividing and growing larger. C. Organize its cell by their specialization. D. Split in two repeatedly to make a bundle of small cells
Answer:
B. Begin dividing and growing larger.
Explanation:
When the sperm and egg cells fuse during fertilization they form a zygote. The zygote then starts to begin to divide rapidly and start growing larger and bigger.
After this process the cells then begin to become differentiated and the parts of the body now become more visible and pronounced.
Which of the following is the most likely to occur if the temperature of seawater decreases?
A. The speed of sound will decrease due to the decreasing salinity of seawater.
B. The speed of sound will increase due to the increasing density of seawater.
C. The speed of sound will decrease due to the increasing density of seawater.
D. The speed of sound will increase due to the decreasing density of seawater.
Answer:
B- The speed of sound will increase due to the increasing density of seawater.
Explanation:
If the temperature of seawater decreases its density increases, but only to a point
Answer:
C. The speed of sound will decrease due to the increasing density of seawater. Most likely to occur if the temperature of seawater decreases.
Explanation:
Most likely to occur if the temperature of seawater decreases.
Which of the following is a necessary reactant for cellular respiration to occur?
Carbon dioxide
Nitrogen
Oxygen
Water
Answer:
Oxygen
Explanation:
C6H1206+602=>6C026H20+ATP
We can see that oxygen is a necessary reactant for cellular respiration among the other options.
(i will give brainly)
Since the vast majority of scientific statements have been proven wrong, is there any good reasons to believe in science?
Answer:
No, not really science has been proven wrong many times.
Explanation:
Mr. Toowise was having a difficult time getting his students to get good grades on quizzes. He was trying to think of a way that he could positively reward his students. He read an article that said that lab rats that were rewarded with sunflower seeds ran through a maze faster than rats that were not rewarded with sunflower seeds. Mr. Toowise stated, "I think that the more sunflower seeds I promise my students, the better they will do on a quiz." He divided the class into three groups. Group one was promised zero sunflower seeds if they did well on the next quiz. Group two was promised 25 sunflower seeds if they did well on the next quiz. Group three was promised 50 sunflower seeds if they did well on the next qutz. Group one received an average of 70% on the quiz. Group two received an average of 73% on the quiz. Group three received an average of 71% on the quiz. He looked at his results and concluded that the amount of sunflowers promised to students does not effect their quiz scores.
Using the information provided in the scenario above, fill in the data table below
1. Hypothesis: ___________
2. Dependent Variable: __________
3. Independent Variable: ___________
4. Constant Control Group _____________
5. Experimental Group:_____________
Answer and Explanation:
1. Hypothesis: The more sunflower seeds the students get, the better they will do on a quiz.
2. Dependent Variable: Responding variable refers to the dependant variable, which response depends on any change in the independent variable. A change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. In the exposed example, the dependent variable is the response of each group to sunflowers seeds expressed as their grades on quizzes.
3. Independent Variable: number of sunflower seeds. Manipulated variable refers to all the variables in an experiment that provoke a response in another variable. They are also known as independent variables. The researcher can change these variables to see what changes it implies in an object, process, trait, or anything that depends on them. In the exposed example, the researcher manipulates the number of sunflower seeds promised to each group.
4. Constant Control Group: Group 1, which does not receive any sunflower seeds. The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, the provision of sunflower seeds, from the results that might be a consequence of other factors. The control group must be selected from the same population of the treatment group. All groups must be similar in every variable that might influence the results, except for the study treatment
5. Experimental Group: Groups 2 and 3, that received different amounts of seeds.
Which of the following means "has
never been living"?
A. natural
B. inorganic
C. organic
D. native
Answer:
B= inorganic
Explanation:
inorganic means not organic
Inorganic means that has never been living, the correct option is B.
What is inorganic?Organic and inorganic compounds are the building blocks of chemistry. The main distinction among both organic and inorganic compounds is that organic compounds every time contain carbon, whereas most inorganic compounds do not.
Furthermore, almost all organic compounds encompass carbon-hydrogen or C-H bonds.
In other statements, inorganic refers to not being made up of or derived from living matter.
A living organism is made up of cells. The cells differentiate, and the organisms' bodies grow as the number of cells increases. A tree is a living organism that exhibits the growth process.
Thus, the correct option is B, as inorganic implies to the one that is not living.
For more details regarding inorganic elements, visit:
https://brainly.com/question/8274162
#SPJ2
1) The process of
using any of the five
senses to gain
information about an
environment or about
a problem
OA.) observation
OB.) conclusion
OC.) constant
Answer:
your answer is OA.) Observation
Explanation:
observation sense helps you gain information
What aspect of chromosome behavior most clearly accounts for Mendel's law of segregation?
A. movement of sister chromatids to opposite poles at anaphase 2 of meiosis
B. movement of homologous chromosomes during prophase 1 of meiosis
The given question is incomplete as the group of choices lack the correct answer, however, the correct group of choices are as follows:
A. Movement of sister chromatids to opposite poles at anaphase II of meiosis.
B. Movement of homologous chromosomes to opposite poles at anaphase I of meiosis.
C. Crossing over between homologous chromosomes during prophase I of meiosis.
D. Replication of chromosomes prior to meiosis.
E. Independent alignment of different homologous pairs on the metaphase I spindle.
Answer:
The correct answer is : Movement of homologous chromosomes to opposite poles at anaphase I of meiosis.
Explanation:
The Mendel's law of segregation says that during formation of gametes the copies of genes segregate from each other so each gamete has equal and only one allele of the gene.
This behavior of homologous chromosome can be seen in anaphase I in meiosis, responsible for the segregation of copies of allele into different copies.
Thus, the correct answer is : Movement of homologous chromosomes to opposite poles at anaphase I of meiosis.
Akira records the speed of a reaction, first without a catalyst, and then with a catalyst.
The provided question is incomplete, however the complete question is as follows:
Match the scenarios and scientific practice:
a. Akira records the speed of a reaction, first without a catalyst, and then with a catalyst.
b. Akira creates a reaction without a catalyst, then repeats the reaction with a catalyst.
c. Akira turns in a written lab report to his science teacher.
d. Akira wonders, "Will adding a catalyst speed up this chemical reaction?"
e. Akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowered the activation energy needed to start the reaction.
1. asking a question
2. performing an investigation
3. collecting data
4. providing explanations
5. communicating results
Answer:
The correct match is :
collecting data - a
performing an investigation -b
communicating results - c
asking a question - d
providing explanation - e
Explanation:
Any research have a scientific method to investigate about the research which have to follow a certain steps in order to test the research and these steps include following steps:
1. asking a question: for any research there would be query or question about any natural phenomenon or process how or why its works in a certain way.
2. performing a experiment : an experiment is a scientific method to test a hypothesis that helps in collecting data to support or against the research.
3. In the end or during of experiment there would be data that need to be collected to get to the result of experiment.
4. providing or forming conclusion on the basis of result and data collected.
5. communicating result would be help in understand the result and review.
Honeypot ants (genus Myrmecocystus) can store liquid food inside their expandable abdomens. Consider other ants you are familiar with, and list how a honeypot ant exemplifies three key features of life: adaptation, unity, and diversity
Explanation:
When the environment becomes too hostile to aid the search for food (that is, dry season), the honeypot ant which can be referred to as repletes shows adaptation to its environment with the intelligent ability to store liquid food inside its abdomen. Their expandable abdomen serve as “living larders” for their entire colony because they are storage vessels.
It exemplifies unity because during a dry season, nutrients become more scarce. Very few flowers blossoms, and fewer insects will approach the colony which means less access to food. Honeypot ants turn to their living larders, which would have swollen to the size of grapes.
When the colony is in need of nutrient-rich liquids, a worker ant will stroke a replete’s antennae. This signals the replete to regurgitate the liquid. A worker can eat the liquid itself, or carry it to another member of the colony.
It exemplifies diversity because it is different from other ants in its ability to store liquid food in its expandable abdomen. Many insects store sweet liquid for later use. For example, honeybees usually stores liquid in their combs. Honeypot ants, are the only insects to store the liquid in their own bodies.
Honey pot ants or honey ants are the types of worker ants. It exhibits adaptation to the surrounding by storing the food in its abdomen region and shows unity and diversity.
What are the features of Honeypot ants?Honeypot ants belong to the genus Myrmecocystus is an arthropod and stores food like honey in the abdomen to the point of swelling and are 3 - 5 mm long.
They show adaptation when the environment becomes hostile and the food becomes scarce. They store the liquid food content in their abdomen and this swelled stored food of the abdomen acts as the living larders for the other ants of the colony.
Honeypot ant exemplifies the unity as during scarcity of food in off-seasons then the ants use their stored food or the larder to nourish the other ants of the colonies.
They are the tomb of the diversity as different from the other ants they store food in their own body rather some places of living like honey bees stores honey in the hives.
Therefore, honeypot ants show adaptation, unity and diversity.
Learn more about honeypot ants here:
https://brainly.com/question/21107617
Which of the following cell structures can be found in prokaryotic cells?
A. chloroplasts
B. ribosomes
C. mitochondrla
D. Nuclei
Answer:
The correct answer is B. ribosomes.
Explanation:
Prokaryotic cells, like bacteria, are cells that do not have any organelles. Unlike eukaryotic cells, they do not have a nucleus or other membrane-bound structures inside their cell membrane. Therefore, prokaryotic cells do not have chloroplasts, mitochondria, or nuclei, but they do have ribosomes (as do eukaryotic cells) which are an important component of protein production in the cell.
Hope this helps!
Difference between results obtained from a subset and results obtained from the whole is known as the ________.
Answer:
Sampling Error
Explanation:
I just know lol
Which of the following statements correctly describes the relationship between intracellular fluid (ICF) and extracellular fluid (ECF)?
A. The types of solutes and their distribution between the ICF and ECF are not the same.
B. Total solute concentration differs in the ECF when compared to the ICF.
C. All of the contents within the ICF are readily exchanged with the contents of the ECF.
D. The ICF and the ECF are in a chemical equilibrium.
Answer: Option A.
The types of solutes and their distribution between the ICF and ECF are not the same
Explanation:
Intracellular fluids are fluids found inside the cell's cytoplasm while extracellular fluid are fluids the flow outside the cells which consist of plasma, interstitial and trancellular fluid
The types of solutes and their distribution between the ICF and ECF are not the same because intracellular fluid of the cystosol is composed of water, dissolved ions, small molecules, and large, water-soluble molecules while extracellular fluid consist of plasma, interstitial fluid and cytosol have high potassium concentration and low sodium Concentration.