Two groups of fifth grades were tested to compare their speed at solving long division problems. One group had calculators and the other did not. Independent variable, dependent variable, controlled variable
Answer:
Independent variable: CALCULATOR
dependent variable: SPEED AT SOLVING LONG DIVISION PROBLEMS
controlled variable: SAME GRADES, SAME PROBLEM
Explanation:
Independent variable is the variable that is changed or manipulated by the experimenter in an experiment. In this experiment, the independent variable is the CALCULATOR, which was changed in the experiment.
Dependent variable is the variable that is measured in the experiment. It is the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is the SPEED AT SOLVING LONG DIVISION PROBLEMS.
Controlled variable or constants are variables that are kept unchanged for all groups throughout the experiment. In this experiment, the controlled variables are: SAME GRADES, SAME DIVISION PROBLEM
What is the most important plant?
Answer:Opium poppy. Essential for the pain killing cancer drug morphine, but infamous as the source of heroin and the addiction it causes.It drove the Anglo-Sino Opium Wars in the mid-1800s where opium addiction was promoted to gain commercial trading advantages.
Yam. ...
Tobacco. ...
Quinine. ...
Rice. ...
Rubber. ...
Cotton. ...
Cannabis.
Explanation:
Metamorphic rocks are formed due to
Erosion of soil
Cooling of magma
Weathering of rocks
Heat and pressure
Answer:
Answer:The answer is A
Explanation:Metamorphic rocks form form intense heat and pressure
Answer:
option D: Heat and pressure
Explanation:
Si durante la division de las celulas de la raiz de una planta se aplica una sustancia x que destruye el complwjo de golgi de estas celulas¿cual sera el efecto esperado en dicho tejido
Answer:
cada célula tendrá dos núcleos
Explanation:
El complejo o aparato de Golgi es un organela compuesta por un grupo de membranas apliladas una sobre la otra formando una serie de sacos aplanados. El complejo de Golgi tiene diversas funciones: maduración, modificación (glicosilación), transporte y secreción de proteínas. En células vegetales, el aparato de Golgi sintetiza vesículas que forman parte del tabique telofásico el cual sirve para dividir el citoplasma de células vegetales durante la citocinesis. En consecuencia, si se eliminara esta organela, el tabique telofásico no se formaría y las células resultantes estarán compuestas por dos núcleos.
Use scientific reasoning and the food web to explain why, in general, it makes sense that the lion population is taking longer to recover than the herbivore populations.
Answer:
Explanation:
Herbivores are able to come back easily when they are search for food because their are more than enough food for them to prey on while in lion population, their main feed also take longer period to be produced since they also feed on animal that take time to give birth such as zebras, so they go for other smaller organisms such as waterbucks which take them more time to be completely feeds on to gain required energy.
What occurs during a chemical reaction?
А
Atoms of two or more elements are destroyed
B.
Atoms of two or more elements oppose one another
С
Atoms of two or more elements bond together
D
Atoms of two or more elements trade protons
Answer: b
Explanation:
It is important to survival that both unicellular and multicellular organisms are able to maintain homeostasis. Which is not example of organisms maintain homeostasis?
A.cells always stay the same.
B.cell division allows or organisms to grow and repair damaged parts.
C.food is made during photosynthesis, and energy is produced from during respiration.
D.materials move into and out of the cells though the cell membrane.
Answer:
A.cells always stay the same.
Explanation:
Homeostasis is the ability of an organism to maintain a stable internal state despite changes in external conditions. The process of homeostasis is important to the survival of both unicellular and multicellular organisms, as mentioned in this question.
Examples of homeostatic process undergone by organisms include:
- Cell division, which allows organisms to grow and repair their damaged parts.
- Making of food during photosynthesis, and production of energy during cellular respiration. This two processes are necessary for the survival of organisms as one produces food and the other synthesizes energy.
- Movement of materials into and out of the cells though the cell membrane, which is required to bring in needed substances and remove unwanted ones.
However, a cell staying the same does not depict any HOMEOSTATIC PROCESS.
. What is the answer?
Answer:
I believe D
Explanation:
Since they are finding plankton, mollusks, etc. in that part of florida it was most likely underwater.
What is the role of respiration in living organisms?
- It breaks food down into the molecules that can be used by the cells.
- It removes waste products and excess water from the body.
- It supplies food and oxygen to the cells and removes cellular waste.
- It transforms the energy in food into energy that can be used by cells.
Answer:
It transforms the energy in food into energy that can be used by cells.
Explanation:
i took the quiz and got it right
Using at least three sentences, describe the process of weathering, and explain how it can happen physically or
chemically?
Answer: Chemical weathering decomposes or decays rocks and minerals. An example of this is water and limestone. Organic weathering happens when plant break up rocks. One the rock has been weakened and broken up it is ready for Erosion. This happens when rocks are picked up and move usually by water. Mechanical weathering breaks up rocks, this usually happens when water gets into cracks, freezes and expands the rock
Explanation:
Answer:
chemical weathering decomposes or decays rocks and minerals. An example of this is water and limestone. Organic weathering happens when plant break up rocks. One the rock has been weakened and broken up it is ready for Erosion. This happens when rocks are picked up and move usually by water. Mechanical weathering breaks up rocks, this usually happens when water gets into cracks, freezes and expands the rock
Explanation:
Summarize the connection between the heart and the lungs
Answer:
The heart and lungs work together to make sure the body has the oxygen-rich blood it needs to function properly. The Pulmonary Loop The right side of the heart picks up the oxygen-poor blood from the body and moves it to the lungs for cleaning and re-oxygenating.
Explanation:
Which factor best explains the reason that average summer temperatures are higher than winter temperatures in North America?
Answer:
Explanation:
The Earth is closer to the sun during the summer months
why social relationships are necessary for the survival of human being
Answer:
They help you live longer
Explanation:
Research has shown that social connections not only impact your mental health, but your physical health as well. A review of 148 studies (308,849 participants) indicated that individuals with stronger social relationships had a 50% increased likelihood of survival.
15) How is the crust DIFFERENT from the other layers of the Earth? A) It is hotter. B) It is thinner. C) It is mostly liquid. D) It is under pressure.
Answer:
B
Explanation:
who is gregor mendel
Answer:
Gregor Mendel created the punnett square.
Explanation:
Explanation:
gregor mendel was a scientist, meteorologist, mathematician, biologist.
Brian is a forensic investigator studying a tool mark on a door jam. He has gone through the steps of collecting the tool mark evidence. Next, he searches for an item that might have made the tool marks. What steps should he take with suspected objects he finds?
Identify and describe the tool.
Compare the tool mark cast and the comparison cast under a microscope.
Photograph the tool.
Make a comparison cast of the tool.
Answer:
I got you my mans
Explanation:
Identify and Describe
vvvvvvvvvvvvvvvvvvv
Photograph
vvvvvvvvvvvvvvvvvvv
Make a comparison cast
vvvvvvvvvvvvvvvvvvv
Compare under a microscope
Make a separate drawing or use a felt-tip pen to present it with the proof. Numerous items with tool marks that come off with force entry can be submitted immediately. A portion of a window or door molding, a window or door sill, a latch, a bolt, a lock, or a doorknob are all included in this.
What forensic investigator studying a tool mark?An item with a tool mark may occasionally be gathered as proof (e.g., a doorknob bearing marks from pliers is removed from the door and placed into evidence).
The examiner will use the comparison microscope to compare examine tool marks in a manner similar to how they are examined for bullets and cartridge cases.
The toolmark examiner will contrast the test mark's microscopic characteristics with the tool mark on the supporting documentation.
Therefore, Even if it is decided not to cast the tool markings, minor crime scenes should nonetheless have their tool marks photographed.
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PLEASE HELP!!Drag each label to the correct location
Match each example with the system where it belongs
mountain range
pond
gaseous nitrogen
lake
coastal vegetation
microorganism
Hydrosphere
Geosphere
Atmosphere
Biosphere
The matching of each example with the system where it belongs is as follows:
Hydrosphere: Pond, Lake, etc. Geosphere: Mountain range. Atmosphere: Gaseous nitrogen. Biosphere: Microorganisms and Coastal vegetation. What is an Atmosphere?An atmosphere may be characterized as a type of layer that significantly of numerous gases that surrounds any celestial planet like earth. The atmosphere of the earth is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.
The atmosphere of Earth is significantly composed of gaseous nitrogen. While the biosphere majorly consists of all sorts of living organisms like microorganisms and coastal vegetation. The hydrosphere deals with something that is related to the presence of water, i.e. ponds, lakes, rivers, seas, etc.
Therefore, the matching of each example with the system where it belongs is well mentioned above.
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Help please, I want the answer
Answer:yes
Explanation:
How would living things most likely be affected if there were a shortage of water on Earth?
If there is a shortage of water on the earth the effect it would have on living things will be : ( A ) Living things would not be able to live, reproduce, or regulate their own temperature.
Importance of waterWater is the most important liquid in every living thing because every activity carried out by living things involve the direct or indirect use of water. Every living thing must regulate its temperature but maintianin the appropriate amountof liquid in its body system. Living things need water to live and also reproduce its young.
Hence we can conclude that If there is a shortage of water on the earth the effect it would have on living things will be : Living things would not be able to live, reproduce, or regulate their own temperature.
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Attached below are the missing options of the question
A) Living things would not be able to live, reproduce, or regulate their own temperature.
B) Living things would not be able to absorb and transport heat or regulate their own temperature.
C) Living things would not be able to reproduce or absorb and transport heat.
D) Living things would not be able to regulate their own temperature, live, or absorb or transport heat.
Answer:
A. Living things would not be able to live, reproduce, or regulate their own temperature.
Explanation:
You're welcome.
According to Figure 2–6, which enzyme would you expect to find in a bacterium growing in a hot spring?
A boy drops an ice cream cone on a cement sidewalk on a hot, sunny day. The ice cream begins to melt soon after hitting the sidewalk. What causes the ice cream to melt?
Answer:
conduction and radiation.
Explanation:
I looked it up on quizlet
hope this helped
The ice-cream melts after hitting the sidewalk due to the processes of conduction and radiation.
What is conduction?
Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.
In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules .
When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state conduction 2) transient conduction.According to the type of energy conduction is of three types:
1) heat conduction
2) electrical conduction
3)sound conduction
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PLEASE HURRY! After Dante catches the flu virus, he feels very tired and loses his appetite. His body aches and he gets a high fever. Which best describes Dante’s symptoms?
A) They are a response to an infection, which is an internal stimulus
B) They are a response to being tired, which is an external stimulus ,
C) They are a response to hunger, which is an internal stimulus
D) They are a response to an illness, which is an external stimulus
The faster an object moves, the
kinetic energy it has.
A)
More
B)
Less
C)
None
D)
All Above
Answer:
it is number B. more
Explanation:
I think it is helpful
Meg researched the biodiversity in four water ecosystems. Which ecosystem likely has the highest biodiversity?
The ecosystem that likely has the highest biodiversity is a small pond with a variety of plant and animal species. The correct option is A.
The choice with the maximum biodiversity is probably a small pond with a wide range of plant and animal species.
Ponds frequently have a variety of ecosystems that offer a variety of habitats for various creatures. several plant species are present, and water is readily available, which creates niches for several animal species as well.
As opposed to the rich environment seen in a little pond, the other possibilities, such as a huge river with a modest number of species, a stagnant lake with few species, or a fast-flowing stream with few species, reflect lesser levels of biodiversity.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
Meg researched the biodiversity in four water ecosystems. Which ecosystem likely has the highest biodiversity?
A) A small pond with a variety of plant and animal species
B) A large river with a moderate number of plant and animal species
C) A stagnant lake with limited plant and animal species
D) A fast-flowing stream with few plant and animal species
What is the brain of the cell? I will award brainliest and friend you to give you a code for among us this Saturday. *I will post more questions for other people*
the nucleus is the brain of the cell.
Describe the path of a nitrogen atom through four parts of the nitrogen cycle. Be sure to explain the processes involved in the transfers. Note when a form of nitrogen is available to plants.
Answer: One of the ways the path of a nitrogen atom begins is as a part of an ammonium ion. A plant takes up the ion and uses it to make an organic molecule through assimilation. The organic molecule falls back to the ground as part of a leaf. The leaf is decomposed by bacteria, and it is converted back to ammonium by ammonification. The ammonium ion is then converted to nitrite by nitrifying bacteria through nitrification.
Explanation: That's what popped up after I hit submit so that's the answer hope this hepls.
Answer:
A nitrogen atom can start its journey as part of an ammonium ion, for example. Through assimilation, a plant absorbs the ion and uses it to create an organic molecule. As part of a leaf, the organic molecule returns to the earth. Bacteria breakdown the leaf, which is then turned back to ammonium by ammonification. Through nitrification, the ammonium ion is transformed to nitrite by nitrifying bacteria.
Explanation:
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Please help me.
1. If the same force is put on two boxes of different weights, what will happen?
A. the heavier box will move faster
B. the lighter box will move faster
C. the boxes will move at the same speed.
D. nothing happens
Answer:
B.) the lighter box will move faster
Explanation:
According to Newton's Second Law, when the same force is applied to two objects of different masses, the object with greater mass will experience a smaller acceleration and the object with less mass will experience a greater acceleration.
What are some characteristics of flowers that draw insects to them and how did the visits of insects help flowering plant survive?
Answer: it depends on the type of insect but sometimes it could be the pollen the smell or.the shape /hue of the plant
Explanation: when an insect goes to a flower,picks up the pollen and brings it to other plants it helps make other ones grow.
2. Identify the tectonic feature created at location B (south america)
Answer:
Andes mountains
Explanation: