Answer:
what is the question. ??
Answer:
Experiment to demonstrate diffusionmaterials:a 250cm³ glass beaker,a long tube,a holed rubber bung or stopper,a colored crystal such as potassium permanganate and water.method: set up the experimentfirst insert one end of the tube halfway into the rubber stopper place the rubber stopper and glass tube into the beaker, keeping the rubber firmly pressed to the bottomintroduce the colored crystal of potassium permanganate down the tubeclose the open end of the glass tube with a finger and fill the beaker halfway with waterwith one end of the glass tube still closed,gently lift the glass tube and rubber stopper out of the beaker without disturbing the crystalobserve what happens in the beaker until there are no further changesobservation: at the beginning,the clear water and colored crystal are each clearly visibleafter sometime,the color of the crystal starts spreading out of the water still remains cleareventually,all the water is evenly colored by the color of the crystalconclusionthe particles spread out in the water by the process of diffusion.I hope this helps
A phylum is always associated with:
O plants
O animals
O plants or animals
O plants and animals
Answer:
plants
Okkk kkkkkkkkkkkk
plants
is the correct answer
1. What happens when matter changes state?
a. Its chemical properties change.
b. Its physical properties change.
c. The energy of its particles remains the same. hape
d. two of the above
Answer:
Matter either loses or absorbs energy when it changes from one state to another. For example, when matter changes from a liquid to a solid, it loses energy. The opposite happens when matter changes from a solid to a liquid. For a solid to change to a liquid, matter must absorb energy from its surroundings.
Answer:
d.
Explanation:
Its chemical and physical properties changes as a result of a change in temperature (increase or decrease in temperature).
I have a few biology questions!
2. What statement about crossing-over is true?
a. The genetic variability of the off spring is reduced.
b. It occurs during meiosis.
c. Genes located far apart on a chromosome are less likely to be separated.
d. It occurs between chromosomes that are NOT homologous.
4. The lac genes are turned off when
a. lactose is present.
b. RNA polymerase binds to the promoter.
c. the repressor binds to the operator.
d. RNA polymerase binds to the repressor.
10. Which of the following is NOT a factor that affects photosynthesis?
a. temperature
b. water availability
c. light intensity
d. heterotroph availability
12. In the Krebs cycle, pyruvic acid is
a. generated so that glycolysis can continue.
b. broken down into carbon dioxide.
c. used to convert ATP into ADP.
d. broken down into glucose.
Answer:
2)a
4)a
10)d
12)b
Question 3.A statement in the introduction read, “All other factors remained the same between the two groups.” Make a list of factors that must remain constant in the experiment.
4. Referring to question 3, why is it essential that these factors be kept constant?
The factors that must remain constant in the experiment are:
TemperatureRelative humidityLight intensityUsually in an experiment, the factor that is remained the same or are kept constant through out the period of the experiment are called the controlled variables or controlled factors.
Examples of such factors include:
TemperatureRelative humidityLight intensityTake for example, in an experiment to test for the effect of different fertilizers on the growth of a plant, the temperature, relative humidity and light intensity should be kept constant.
The temperature, relative humidity and light intensity here are the external factors that affects the outcome of an experiment and must be kept constant.
That is why is it essential that these factors be kept constant.
Learn more here:
https://brainly.com/question/17796041
what method did jesus use to lead the rabbis to a clearer understanding of God's plan?
Jesus used the parables to lead the rabbis to a clearer understanding of God's plan.
In christian religion, Jesus used a method of teaching called parables to expatiate a most topics he handled. This was for the better understanding of God's plans.
The parables are defined as the short stories that demonstrates a moral lesson.
A typical example of a parable used by Jesus is the parable of the lost coin.
Here Jesus told a story of a woman that had ten coins and lost one of them. He said that the woman searched carefully until she finds it. she went ahead to call her neighbors to rejoice with her as she has found the lost coin.
In this parable, Jesus passed a clearer understanding of God's plan for a repented sinner. HE said that there is rejoicing in the presence of God over one sinner who repents.
Learn more here:
https://brainly.com/question/13254758
Jorge is studying a pond ecosystem in his neighborhood. The pond is home to a variety of plant and animal species, as well as a stop for birds that migrate through the region.
One summer, heavy rains wash an unusual amount of fertilizer into the pond. Jorge observes the algae population growing rapidly, and quickly algae cover the pond's surface. Several weeks later, many fish and other animals die in the pond. However, within two years, the algae population has returned to its previous size, as have the populations of all the ecosystem members.
Jorge's observations provide the strongest evidence for which of the following conclusions about the pond?
A. The pond ecosystem has very high biodiversity that protects it from invasive species.
B. The pond ecosystem is resilient to changes in many abiotic and biotic factors.
C. The pond ecosystem can withstand only certain levels of algal growth.
D. The pond ecosystem may change over time, but its species will continue living there indefinitely.
Answer:
I think that the answer is C.
Explanation:
If the levels of algae were too high then it would be the reason as to why the fish died. When the algae went back to normal,the fish were able to live there again.
I hope that helps!
Answer:
C.The pond ecosystem can withstand only certain levels of algal growth.
Explanation:
Evaluate the extant to which the government has contributed to.social grants
Answer:
Government has contributed its social grants to create awareness for various social issues among the public. It has provided scholarships for students who are in need of governmental aid for higher studies. Social grants of government have also contributed in creating housing facilities.
why water essential to complete the life cycle of a mosquitoes?
Explanation:
Water provides a safety net for mosquitoes to move into developmental periods and grow. In the egg stage, the female lays roughly 300 eggs that float atop the water's surface. This is why it is so important to eliminate any standing water around your property.
Which age structure is most likely for a population that has not completed the demographic transition?
a. 50 percent of people below age 15
b. 15 percent of people below age 15
c. 5 percent of people aged 10–14
d. 10 percent of people aged 50–54
URGENTTT!!
how insulin taken by breathing it in enters the blood?
Answer:
well when you breathe in the insulin it travels to your lung and is absorbed by the alveoli where it is dissolved and is transffered to the capillaries
Explanation:
Sustancia formada por dos átomos de hidrógeno en la asados por uno de oxígeno
Answer:
El agua es una molécula simple, se produce cuando un par de átomos de hidrógeno y uno de oxígeno quedan atrapados juntos.
Biology 1.....................................................................
Answer:
Explanation:
1.C
2.B
3.A
4. Endothermic, this processes require an input of energy to proceed and are signified by a positive change in enthalpy, also because the product is less compared to the reactants.
do fertilizer also increase the number of bacteria as they do for plants, or do they increase when the decomposition of plants occur?
Answer:
my views
Explanation:
bacteria helps in the decomposition of wastes ,and after the decomposition of waste material by bacteria it leads to the creation of nitrogen's oxides and this nitrogen's oxides works as fertilizer which leads to the good crops and we don't need of any chemicals' made fertilizer
Answer:
Farmers can add nitrogen fertilizer to produce better crops, but too much can hurt plants and animals, and pollute our aquatic systems.
Explanation:
all chemical elements that are needed by living things are recycled in ecosystems true or false
Answer:
True
Explanation:
the answer is "True" / "T" hope this helps
Elements do not lose and gain energy as they move through ecosystems. Instead, they are continually recycled. Ecosystems recycle every chemical element required by living organisms, including carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur. Therefore, it's true.
What is ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
Elements do not lose and gain energy as they move through ecosystems. Instead, they are continually recycled. Ecosystems recycle every chemical element required by living organisms, including carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur.
Learn more about ecosystem, here:
https://brainly.com/question/3669748
#SPJ2
Someone help me please lol
Answer:
what do you need help with.
Explanation:
What kind of life forms were found in the blood falls and what kind of environment did they thrive in?
Answer:
Most autotrophs—organisms able to produce their own energy—are photosynthetic: They require sunlight and oxygen. The extremophiles of Blood Falls, however, do not use photosynthesis. They use a more unusual process called chemosynthesis. Chemosynthetic organisms are able to convert sulfur and iron compounds (not sunlight and oxygen) into energy. As Blood Falls’ chemosynthetic bacteria extract iron from the rocks they come in contact with, they gradually erode the bedrock around the lake.
Explanation:
Identify the following observation as qualitative or quantitative
The solution turned blue in color
Hey there! I'm happy to help!
Quantitative data are data that have to with quantities (numbers).
For example, how many inches tall is the plant, what is the pH level of this fluid, what is the temperature of the meat, etc.
Qualitative data are data that can be described or that have a specific quality (qualitative).
For example, are the flowers yellow or green, is the fluid bubbling, does the meat smell burnt, etc.
We see that a solution turning blue doesn't have to do with numbers, so it is not quantitative. It is qualitative because it has to do with the quality (in this case, color) of the solution and not a numerical statistic.
Have a wonderful day and keep on learning! :D
How are energy in information used to keep an organisms body organized
Organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process. The potential energy stored in molecules can be converted to chemical energy, which can ultimately be converted to kinetic energy, enabling an organism to move.
Explanation: I hope this helps! NOT MY WORK!
Energy is required for the cells to carry out their metabolic functions. Moreover, information (genetic information) is also fundamental to synthesize and regulate biomolecules required for the cells to carry out their functions.
All cells need energy to carry out their metabolic functions. i.e., to live, grow, and reproduce. Adenosine triphosphate (ATP) is the energy coin of the cell because this molecule provides releasable energy in the bonds between phosphate groups.For example, the energy released by the hydrolysis of ATP is used to synthesize biomolecules, endocytosis, exocytosis, cell motility, cell contraction, etc.The information stored in the sequence of the Deoxyribonucleic acid (DNA) molecule is used to synthesize structural and enzymatic proteins (as well as other cellular components) which are required to carry out cellular functions.Moreover, the information stored in DNA is also required to regulate the expression of genes involved in protein synthesis.In conclusion, energy and information (genetic information) are both fundamental to carry out cellular functions.
Learn more in:
https://brainly.com/question/174043?referrer=searchResults
https://brainly.com/question/1002226?referrer=searchResults
2. Seema suffered a severe muscle tear while playing. Which food nutrient would help her recover faster
Answer:
Protein.
Hope it helps you.....the wight of a child taken over the first 18 years of their life by a type of
Answer:
what subject is this and do we need an equation for it
Explanation:
pllllllllllllllzzzzzzzzzzzzzzzzz help
Answer:
independent variable
Explanation:
control is what stays the same and dependent is the results from the changes made not sure if im 100% correct
Please help me... The advantages of soaking pineapple slices in a concentrated sugar solution compared to storing fresh pineapple
Answer:
Answer:
Advantage: Bromelain. Adding pineapple
to your meals or desserts may help you
digest your food better....
Disadvantage: Sugar. If you have
diabetes, pineapple may cause a spike in
your blood sugar. ...
Advantage: Vitamins and Minerals. ...
Disadvantage: Skin Irritation.
hope this helps:)
How much photosynthesizing material does it take to keep up with a single human’s oxygen needs?
A. 1 medium pool worth of bushes
B. ¼ acre of trees
C. 2 house plants
D. 8 bathtubs of algae
Photosynthesizing material take up 2 house plants for a single human’s oxygen needed. The correct option is C
What is photosynthesis?
Photosynthesis can be defined as the process used by plants and other organisms to convert light energy into chemical energy that through cellular respiration can later be released to fuel the organism's activities. During photosynthesis in green plants light energy is captured and used to convert water, carbon dioxide and minerals into oxygen and energy rich organic compounds.
Therefore during photosynthesizing requirements needed include Sunlight, water and oxygen where two processes occur one light dependent and another which is light independent.
Learn more about Photosynthesizing here: brainly.com/question/1916081
#SPJ1
How should you test a hypothesis
Decomposers in the forest come in many different shapes and sizes. Shelf fungus is a
fungus that grows on the sides of trees. It grows into the tree and decomposes it slowly.
Have you ever been walking through the woods and come across a dead log that falls
apart and is full of dirt? That is because decomposers have been eating and digesting
that log for several years, turning it into dirt that is wonderful for plants.
a) What process is taking place as wood turns into dirt?
b) Decomposers are the cleaning agents of the environment. Justify the statement
c) What is the energy source for producers?
fast pls
Answer:
b no
Explanation:
cause decomposers are those who decyed
What happens to a population when it's larger than the available resources can accommodate?
1. The organisms not well suited for that environment won't survive.
2. The organisms who need fewer nutrients will support the organisms who need more.
3. The environment will produce more nutrients and resources to support the population.
4. All of the organisms in that population will die.
Answer:
The organisms not well suited for that environment won't survive
Explanation:
Good Luck!
Answer:
The organisms not well suited for that environment won't survive.
Explanation:
its the right answer for HS
Which methods were used by the eastern woodland native Americans to acquire food?
A: bows and arrows, fishing, farming
b: men farmed, children gathered
c: trapping, trading, and using guns
d: women built traps and fashioned weapons
Answer:
if you believe in me a random stranger it is A
Explanation:
just cause Trust
What is the name oldest recorded human (humanoid) fossil found on Earth? Where was it found and how old was it?
Answer:
Lucy
Explanation:
Lucy was found in Hadar, Ethiopia and is estimated to be 3.2 million years old.
Vital centers for the control of heart rate, respiration, and blood pressure are located in the ________. Group of answer choices medulla oblongata cerebrum pons midbrain
Answer:
cerebrum
Explanation:
it connects the brain to the spinal cord and control breathing and blood pressure
The vital center that is responsible for the control of the heart rate, respiratory rate, and blood pressure is located in the midbrain. The medulla is a part of the brains stem that is conned by the spinal cord.
Medulla oblongata being located at the base of the brain stem plays an essential role in incasing the messages from the spinal cord to the brain. It is essential for regulating the cardiovascular and respiratory systems.Hence the option A is correct.
Learn more about the Vital centers for the control of heart rate, respiration, and blood pressure.
brainly.com/question/7462699.
Is the following sentence true or false? Scientific inquiry is a process with many paths, not a rigid sequence of steps.____________
Answer:
True
Explanation:
Scientific inquiry is a process with many paths, not a rigid sequence of steps. The given statement is true.
The scientific method isn’t as monolithic as it may seem in practice. Sometimes the results of an experiment suggest that a new approach is needed; sometimes, an experiment introduces whole new scientific questions into the picture.
Scientific inquiry goes beyond the development of process competencies such as observation, deduction, classification, forecasting, quantification, inquiry, interpretation, and analysis, all of which must occur simultaneously in order for scientific inquiry to occur.
So, the given statement is true.
To learn more about scientific inquiry, refer to the link:
https://brainly.com/question/16164242
#SPJ6