Answers
Answer:
C.
Explanation:
A is incorrect because a map isn't usually called a model, unless it was a 3D map of a certain area.
B is incorrect because a brainstorming activity isn't a model. It's considered planning.
D is incorrect because the scientific method is used to hypothesize experiments.
Related Questions
Which expression best describes the amount of biomass transferred
from the producer level of this pyramid to the tertiary consumer level? (PLEASE ANSWER CORRECTLY AND QUICK)
a > 10% (equal to)
-
b <50% (equal to)
-
c >100%
d <1%
Answers
Why does a pollutant end up multiplied as it travels up the food chain from producers to consumers?
Answers
Answer:
This is due to bio magnification.
Explanation:
When there is a gradual increase in concentration toxins(pesticides) in the tissues of organisms progressively in the food chain,the term for describing this is called -bio magnification.
The progressive multiplication in the concentration of these toxins may be due to non-biodegradable nature of the toxins,which are absorbed into the tissues of mostly the producers from the environment faster than they could metabolized by the body.
.Therefore these could not be removed by the producers, during excretion and respiration,and hence build up progressively upwards in the consumers.
A typical example is the phytoplankton which absorb toxins from sea water and accumulate this in the body.The build could not be ,metabolize by the body system,and is transferred to the zooplankton along the food chains when they feed on the phytoplanktons- this is Bio magnification.True a False/ a theory is a scientific idea that has been proven to be true.
Answers
Answer:
No,it has to be proven true its not already true
Explanation:
It has to be proven true,it can't be true becuase someone said it was without any proof.
Which of these plant cell structures is also found in a prokaryote?
Answers
Answer:
D. Cell wall
Explanation:
Cell wall is also present in prokaryotes it is made of peptidoglycan layer.
What must happen before a chemical reaction can begin
- the activation energy must be exceeded
- the activation energy must be reached
-the concentrations of products and reactants must be equal
- the concentration of reactant molecules must be reduced
Answers
Answer:
its B
Explanation:
The incident that happen before a chemical reaction can begin the activation energy must be reached. Thus, option B is correct.
What is activation energy?
The extra energy is the minimum amount of extra energy which required by reacting molecule to convert into the product.
Factor at which activation energy depends are as follows:-
1: Activation energy depends upon the nature of reactant if reactant is ionic then required activation energy is less and if reactant is covalent then required activation energy is high.
2: Nature of catalyst if catalyst is positive then required activation energy is less and if catalysts is negative then required energy is high.
3: Activation energy doesn't depend on pressure, temperature, volume etc.
Temperature is one the important factor at which any reaction is depend. In any reaction if temperature is increases the rate of reaction is increases and if temperature is decreases the rate of reaction is decreases.
Here, is the Arrhenius Equation which shows the temperature dependence of the rate of a chemical reaction.
k=Ae^−EaRT
Where,
k= rate constant of the reaction
A= Arrhenius Constant
Ea= Activation Energy for the reaction (in Joules mol^-1)
R= Universal Gas Constant
T= Temperature in absolute scale (in kelvins)
Therefore, The incident that happen before a chemical reaction can begin the activation energy must be reached. Thus, option B is correct.
Learn more about activation energy here:
https://brainly.com/question/28384644
#SPJ5
why is carbon dioxide carry in dissolved form in the blood that oxygen
Answers
carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood. because carbon dioxide have more solubility than oxygen
What would be the impact of not having mutualistic relationships in ecosystems
Answers
It results from the disappearance of entire species in a short time.
It results from the disappearance of a few organisms in a short time.
It is caused by the growth of the human population.
It is a type of long-term change.
It is a type of short-term change.
It is caused by a decrease in the introduction of nonnative species.
HELP ME
What color is blood while it’s in your body ?
Answers
Answer:
Red, shade of red may depend on the oxygen level in it.
Explanation:
Answer: Dark red for veins, bright red in artery
Explanation:
What is the meaning in life it seems so pointless??
Answers
Answer:
To be happy
Explanation:
Honestly If you are happy then life is good, what do you crave in life... go after it
the carbon used in photosynthesis comes primarily from the air or surrounding aquatic environment
a. true
b. false
Answers
The carbon that plants need for photosynthesis comes from carbon dioxide, or CO2 that's present in our atmosphere. Hope it helps
Answer: true
Explanation:
what was the independent variable in this experiment
Answers
Explanation: the actual thing that you are testing and changing in your experament can also be called the manipulated variable hope this helps
Which of the following is NOT part of the cell theory? *
All living things are made up of one or more cells.
Cells come from other cells.
The cell is the basic unit of life.
Cells are made of organelles.
Answers
Answer:
Cells are made of organelles.
Answer:
cells are made of organelles
Explanation:
because it is why the cells has different kinds
Which element has two energy levels magnesium or carbon?
Answers
A student tossed a coin five times and observed results of four tails and one head. He concluded that when a coin is tossed, there is an 80% chance of getting a tail and a 20% chance of getting a head. The conclusion would be more valid if? A only two tosses of the coin had been used B the weight of the coin had been used C a greater number of tosses had been used D the surface the coin had landed on had been taken into consideration
Answers
Answer:
B
Explanation:
What are some possible future career fields in environmental science?
Answers
Answer:
Environmental science is a branch of science that deals with biological and chemical issues in the environment and establish initiatives for a healthy environment.
Environmental science is a vast subject and comes with many future career fields, some of them are as follows:
Environmental Scientist: The responsibility of environmental scientists is to analyze samples of air, soil, water, food and other materials and informing about health risks and environmental hazards.Environmental Lawyer: Environmental Lawyer deals with the technical understanding of environmental issues and argues for the benefit of environment.Environmental Engineer: Environmental Engineer design projects on the basis of environmental protection.Zoologist: Zoologist studies the behaviour of animals and their interaction with the natural environment, human beings and other animals.Hydrologist: Hydrologists analyzes the impact of the environment on the quantity and quality of water and the influence of water on the environment.Thus, there are many career fields in environmental science.
Environmental science is a branch of science which deals with both biological and chemical factors reside in the environment and establish a healthy environmental initiatives.
What is the application of environmental science?Environmental science is a vast subject related to environment and its components, it mainly deals with climates to animal survival, to air quality, and much more
It shows its effect on Public Health, Land Management, Waste Disposal and Pollution, Overpopulation, Water, Deforestation, Ecosystems, Endangered Species, Climate Change
Some carrier option include, you can opt for an Environmental Scientist where the role should be analyze samples of air, soil, water, food and other materials.
You can choose for Environmental Lawyer mainly deals with the understanding of environmental issues and argues for the benefit of environment.
Environmental Engineer is another field where you can design projects for environmental protection, as a Zoologist where you can study behavior of animals and their interaction with the natural environment,
Learn more about environmental science , here:
https://brainly.com/question/4593618
#SPJ2
The night sky is filled with images of wild animals. Which animal is the circled constellation named after?
scorpion
serpent
snake
salamander
Answers
Answer:
Scorpion
Explanation:
Answer:
A
Explanation:
All materials,weather solid,liquid or gas are made of?
Answers
They are all made of atoms!
Please give brainliest <3
What information cannot be studied effectively using human torso models? I. the approximate sizes of organs II. the textures of organs III. the interrelationships of organ functions IV. the positions of organs within the body
Answers
Answer:
II. the textures of organs
Explanation:
A human torso model is designed to be as accurate as possible so that students/researchers can understand the inner workings of the body. Therefore, the organs have been designed to be the same size of an actual human being of that stature, while also being in the correct position within the body to better understand the interrelationships between the organs. The only thing that is not accurate in these models is the texture of the organs as most are smooth plastic unlike the actual organs.
Answer: ll and lll only
Explanation:
Can someone please help I’ll give brainliest!
The questions are:
1. What are the constants (variables that stay the same- also called controlled variables)?
2. What is the independent variable ?
3. What is the dependent variable?
4. What flaw in the design of the experiment can you find ? Explain .
5. What hypothesis do you think the scientists are trying to test?
Answers
Answer:
Explanation:
1) The constants: hours of lgiht per day, their food, wheel for exercise, and cage size
2) Independant variable: temperature
3) Dependant Variable: weight and length
4) Flaw: The mice groups have different amounts of mice. Group 1 has three, group 2 has four and group 3 has two. All groups should have the same number of mice, in this case three mice per group.
5) Does the temperature of a mouse's cage affect their weight and length?
Hope this at least helps!
How are meiosis and mitosis different?
A. Cells go through telophase In mitosis, but In meiosis they don’t.
B. Chromatids from only during the process of meiosis.
C. Mitosis produces haploid cells, while meiosis produces diploid cells.
D. Only meiosis results In a reduction In chromosome number.
Answers
Answer: D. Only meiosis results In a reduction In chromosome number.
Explanation:
I got it correct on the test
A personal trainer thinks her clients get better workouts and are stronger if they listen to music while working out. Over the next week, she divides her 20 clients into two groups of 10. For the first group, she plays music and sees if they can lift a barbell weighing 50 lbs. For the second group, she repeats the test but does not play any music. All 10 members of the music group could lift the barbell, but only 7 members of the no music group could lift the barbell. She concludes that her hypothesis was correct and decides to always play music for her clients.
Which group was the control group?
Answers
Answer:
The correct answer is: the group of 10 people that lifted the barbell with music is the control group.
Explanation:
The personal trainer made an experiment to test her hypothesis. When experiments are being made, is common to have a control group and an experimental group.
The control group is the one that is subjected to the usual conditions, the group that shows what normally happens. The experimental group is the opposite, this group is observed while it goes through an unusual condition that may impact how they perform in the task observed.
The personal trainer thinks that playing music for her clients is of benefit to them, so we can assume that she always plays music during the workouts, which means that the control group is the one that is listening to music while lifting a barbell. The group that worked out without music is the experimental group because they were the ones that performed that activity with a change in their normal environment.
Based on your understanding of how producers make food, make a prediction about the relationship between sunlight and carbon dioxide uptake by a plant.
Answers
Answer:
photosynthesis
Explanation:
Is bacteria the smallest living thing on earth
Answers
Answer:
Image result for Is bacteria the smallest living thing on earth
Mycoplasma genitalium, a parasitic bacterium which lives in the primate bladder, waste disposal organs, genital, and respiratory tracts, is thought to be the smallest known organism capable of independent growth and reproduction.
Explanation: hope this helped
Which of the following is a main difference between prokaryotic and eukaryotic cells?
A.eukaryotes are smaller than prokaryotes
B.eukaryotes do not have organelles
C.prokaryotic cells lack a membrane-bound nucleus
D.prokaryotes do not have ribosomes
Answers
Answer:
C
prokaryotic cell's DNA just floats around in a cluster
Match the words in the left column to the appropriate blanks in the sentences on the right.
protein-energy malnutrition
buffers
hormones
marasmus
kwashiorkor
transport proteins
kidney stones
antibodies
coenzymes
1. Proteins called....................... aid the immune system in its fight against bacteria, viruses, and other foreign substance by binding to them and helping to inactivate or destroy them.
2. ...........................direct activity in the body and can be made of proteins or lipids.
3. A high-protein diet can increase the risk of.................. .
4. .........................carry many substances through the blood or allow movement of substances in and out of cells.
5. Inadequate intake of protein and/or calories is known as................ .
6. Most enzymes are proteins, but some may utilize........................ in the form of vitamins to help with reactions.
7. Proteins help control the acid-base balance in the body by acting as............................ .
8. ....................................is a severe deficiency of dietary protein, resulting in swelling in the feet, legs, and stomach among other symptoms.
Answers
Answer:
1. antibodies
2. hormones
3. kidney stones
4. transport proteins
5. protein-energy malnutrition
6. coenzymes
7. buffer
8. kwashiorkor
Explanation:
1. ANTIBODIES are proteins that aid the immune system in its fight against bacteria, viruses, and other foreign substance by binding to them and helping to inactivate or destroy them.
2. HORMONES are substances made of protein or lipid released into the bloodstream in order to direct physiological activity in the body.
3. A high-protein diet can increase the risk of KIDNEY STONES because the body will have an increased acid level.
4. TRANSPORT PROTEINS carry many substances through the blood or allow movement of substances in and out of cells.
5. PROTEIN-ENERGY MALNUTRITION is the phenomenon used to describe an inadequate intake of proteins and/or calorie content.
6. COENZYMES are molecules that play vital roles in the function of an enzyme. Coenzyme in form of vitamins are utilized by enzymes to catalyze chemical reactions.
7. Proteins can act like BUFFER (a substance with a stable pH) in order to regulate the acid-base balance in the body.
8. KWASHIORKOR is a malnutrition deficiency that result from the insufficiency of dietary protein, resulting in swelling in the feet, legs, and stomach among other symptoms.
What is the main cause of urban migration in the United States?
a. Rural communities are no longer necessary.
b. Urban dwelling provides better access to goods, services, and jobs.
c. Urban communities reduce human impact on the environment.
d. Rural communities are unable to support life in the long-term. .
Answers
Answer:
B
Explanation:
Urban dwelling provides better access to goods, services, and jobs.
Urban dwelling provides better access to goods, services, and jobs is the main cause of urban migration in the United States
What is migration ?Migration can be defined as the movement of a large number of organisms from one place to another place, there are many reasons for migration.
The term migration is used to define regular and periodic movements of the population away from or back to their place of origin, it can be up different types.
Some migration can occur for an entire lifetime and it happens to be a single migration of an individual. This is in the case for the Pacific salmon. On another hand, an individual may migrate frequently, like many of the migratory birds and other mammals.
For more details regarding migration , visit
https://brainly.com/question/17991559
#SPJ5
What is one observation that could be made to support the idea that two rock layers
are the same age?
A.layers with different fossils
B.layers of equal density
C.layers made of the same chemicals
D.layers with similar fossils
Answers
The LESS genetically diverse a population is, the better it can respond to environmental stressors. True or False?
Answers
False is the answer as it increases the risk of extinction
Basalt is dark in colour. Give reason.
Answers
Answer:Basalt is usually dark grey to black in colour, due to a high content of augite or other pyroxene minerals, but can exhibit a wide range of shading.
Explanation:
Some basalts are quite light-coloured due to a high content of plagioclase, and these are sometimes described as leucobasalts.
If an object is having a constant positive acceleration, what can we assume about the forces on it?
Answers
Answer:
If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. ... If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant.
The force on the object is unbalanced.
Acceleration is the change in velocity per change in time of motion.
At constant velocity, the acceleration of an object will be zero.Increase in the change of velocity causes increase in acceleration in positive direction.A positive acceleration indicates increase in the motion of an object.According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.
F = ma
If the net force on an object is balanced, the acceleration of the object will be zero because the object will move at velocityHowever, if the force on an object is unbalanced, the object will accelerate.
Thus, we can conclude that the force on the object is unbalanced.
Learn more here: https://brainly.com/question/14662204