(06.05 MC)
Two students are comparing scientific experiments to investigations. They came up with the following ideas.
Student A: Testing plant growth in different types of soils
Student B: Comparing the water level in a lake during different times of the year
Which student gave an example of a scientific experiment? (5 points)
Student A because it requires experimental and control groups
Student B because it requires a hypothesis
Student A because it is preferably done in natural settings
Student B because it is preferably done across a long period of time
Brainliest for correct answer :)
Answer:
Student A because it requires experimental and control groups
Explanation:
Student B merely compares the water level, while student b is looking for plant growth.
We can eliminate the second and last answer choices, knowing this, leaving the first and third answer choices.
A science experiment doesn't have to be in natural settings, therefore the answer is the first option!
Please give me brainliest if I helped!
Answer:
give brainliest to other person, i agree with them
Explanation:
A group of scientists wants to observe the adaptation of a foreign fish species in a river ecosystem. To do this, they want to enclose the top and sides of a section of a river to block light and matter from entering the area. Evaluate whether this experimental system is an isolated system. Justify your answer based on the definition of an isolated system.
Answer:
yes because a thermodynamic system (isolated system) enclosed by rigid immovable walls through which neither mass nor energy can pass.
PLSSS HELP PLSSSSS ILL GIVE BRAINLIEST WTV U WANT PLSSS
Answer:
11. bacteria kingdom
12. archaea kingdom
13. protist kingdom
14. fungi kingdom
15. plant kingdom
16. animal kingdom
17. protist kingdom
18. archaea kingdom
19. plant kingdom
20. animal kingdom
21.
HEYY, HELP PLEASEEE<3
explain how the physical structures, reproductive organs, and physical supports of a hibiscus flower and elephant are similar.
Answer:
Explanation:
Carolus Linnaeus wanted to classify the hibiscus flower. He began by examining the color of the flower, its petal shape, its petal numbers, and the arrangement of stamens and petals. What is his basis for classifying the hibiscus flower?
the classification is based on both genetic and physical characteristics the classification scheme is based on the flower's genetic characteristics the classification scheme is based on the flower's physical characteristics the classification scheme is based on the flower's chemical characteristics
Which of these is the most serious impact to an ecosystem after a tornado?
an increase in biodiversity
soil erosion along with water pollution
the growth of plants in newly cleared areas
animals relocating to different habitats
animals relocating because they Is less biodiversity and other stuff
The most serious impact to an ecosystem after a tornado is the relocation of animals to different habitats. Details about tornadoes can be found below.
What is a tornado?Tornado is a violent windstorm characterized by a mobile, twisting, funnel-shaped cloud.
Tornadoes usually have negative impacts on their area of occurrence because they destroy lives and properties.
One serious impact of tornadoes on an ecosystem is that it leads to the relocation of animals to different habitats.
Learn more about tornadoes at: https://brainly.com/question/1146984
#SPJ2
How are skills learned in older generations passes down to younger generations?
What does a poison control center do?
Two great snowbirds are migrating. Both birds have a mass of 100 g under flag it 90 km/h. Birds are is flying 2.0 KM above the ground, and very cute is fine 2.5 KM above the ground. Based on the information above, which statement best describes the energy of the two birds?
Answer: B: Luster and Conductivity
Explanation:
The circuit is to test conductivity and the light is to test the shine or luster. :-)
Polly is explaining the Law of Conservation of Energy to her friend. She is using a light bulb as an example. Which of the following statements best explains this law?
A.
"Electrical energy is destroyed to create light and thermal energy."
B.
"Potential energy is used to create electrical energy and release light and thermal energy."
C.
"Electrical energy is transformed into light and thermal energy and released to the surroundings."
D.
"Electrical energy created by the light bulb is converted into light and thermal energy and used up by the surroundings."
Answer:
"Electrical energy is transformed into light and thermal energy and released to the surroundings."
Explanation:
i did this. i got it correct.
mark me my first brainliest?
The best example for law of conservation of energy is potential energy is used to create electrical energy and release light and thermal energy. Thus option b is correct.
What is law of conservation of energy?The law of energy states that energy can't be created nor be destroyed it only transfer from one form of energy to another form of energy.
In above example as we know that electrical energy is created by potential energy which stored in the form of water in dam after that electrical energy is produced so potential energy converted into electrical energy as a polly switch on the light she change the electrical energy into thermal energy because as we burn light it also develops some heat.
Therefore, we can say that energy is conserved and it only converted into one form of energy to another form of energy. Thus, option b is correct.
Lear more about law of conservation of energy here:
https://brainly.com/question/20971995
#SPJ2
Fond correct answer please
Answer: The answer would be Precipitation.
Explanation:
How does energy move in a healthy ecosystem from the sun to the plants and the animals?
Answer:
B
Explanation:
Sun to Producers to Herbivores and so on...
SC.8.P.8.2 7-As an astronaut travels from the surface of Earth to a position that is tentimes as far away from the center of Earth. Based on the Law of Gravity ,which of the following statement is true?
A. Mass decreases and the gravitational pull from Earth increases. B. Weight increases and the gravitational pull from Earth stays the same. C. Mass remains the same and the gravitational pull from Earth decreases. D.Weight remains the same and the gravitational pull from Earth increases.
ithink its 56.78Explanation:
Explain your answer well and I shall give brainliest. How does the structure of a root hair cell support its function?
what should I do to decrease the temperature from the Cryogenian period?
Find correct answer please
Answer:
condensation
Explanation:
What body structure did the second scientist use to determine that the first scientist had misidentified the fossil?
i heard it had to do something with DNA in the bones all animals that where fossalized where identafied by using the DNA in their bones
hope that helped
DNA in the bones used to determine that the first scientist had misidentified the fossil.
What do you mean by fossils?Fossils are the preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers. Fossils also include any preserved trace of life that is typically more than 10 000 years old.
There are four main types of fossils, all formed in a different way, which are conducive to preserving different types of organisms. These are mold fossils, cast fossils, trace fossils and true form fossils.
Fossils are the remains or traces of ancient life that have been preserved by natural processes. Examples of fossil include shells, bones, stone imprints of animals or microbes, exoskeletons, objects preserved in amber.
Learn more about fossils:
https://brainly.com/question/14988327
#SPJ6
The rescue workers can get energy to the batteries in their equipment during rescue missions by using a generator to convert the kinetic energy to potential energy. ... The best way is to use a hand crank such as a hand cranked flashlight or radio because it is easy to power enough energy for a short amount of time.
Answer:
e rescue workers can get energy to the batteries in their equipment during rescue missions by using a generator to convert the kinetic energy to potential energy. ... The best way is to use a hand crank such as a hand cranked flashlight or radio because it is easy to power enough energy for a short amount of time.
Explanation:
Use the diagram below to help you answer the following questions.
*Note that in the images below changes in eccentricity are exaggerated so the effect can be seen in the images. Earth's orbit shape varies between 0.0034 (almost a perfect circle) to 0.058 (slightly elliptical).*
a. A change in the eccentricity of Earth's orbit towards its maximum will increase or decrease the solar input that the Earth receives?
b. Explain how an increase in the eccentricity of the Earth’s orbit will alter the climate.
Answer:
I'm not sure about question b, but I'm pretty sure a is increase
Explanation:
I think I remember learning about this
Eccentricity in the orbit of the planet is the measurement of the deviation of the planet from its circular path. The maximum eccentricity of Earth's orbit increases the solar input and will alter the climate.
What is the effect and relationship of the eccentricity and climate?The eccentricity is the change or the modification of the elliptical orbit shape of the planet where it revolves around the sun. When there is the maximum eccentricity of the orbit then the solar input or the heat the planet receives will increase.
The solar heat or the input will increase due to the maximum eccentricity as the distance of the planet and the sun have changed and they have become more close, because of that the heat and solar energy will be more in contact with the planet's surface.
The increase in the eccentricity of the Earth’s orbit will affect the climatic conditions as the orbital distance has become close to the sun and the revolution has been affected and the climate is controlled and regulated by the heat emitted from the sun.
Therefore, an increase in the eccentricity of the Earth’s orbit will affect the climate and also increase the solar input.
Learn more about the eccentricity of the planet here:
https://brainly.com/question/6175018
What is species extinction and what are the primary causes?
Answer:
The extinction of any species is an irreversible loss of part of the biological richness of the Earth. ... Extinction can be a natural occurrence caused by an unpredictable catastrophe, chronic environmental stress, or ecological interactions such as competition, disease, or predation.
Below is a drawing of a fossil that is millions of years old. This fossil was just taken out of the ground, and no one knows what kind of organism it is. One way scientists identify a fossil of an animal with bones is to compare the bones of the fossil to the bones of other animals.
Do any of these fossil’s bones look like bones of other animals? Describe your thinking.
Yes! Fossils come from all animals
HEY :) HELP PLEASEEEE TYY TYY
Picture explains it all
Which of these is the most serious impact to an ecosystem after a tornado?
an increase in biodiversity
soil erosion along with water pollution
the growth of plants in newly cleared areas
animals relocating to different habitats
(plz don't send a file)
Answer:
Tornadoes effect the environment by destroying buildings and trees. Tornadoes also kill animals, which effects the food chain and disrupts the whole environment. Tornadoes destroy our farms, which means there will be food shortages around the surrounding area
Explanation:
thank me later
Please find the correct answer
Answer:
the second one
Explanation:
A scientist notices that the sky is covered by a thick layer of clouds. What kind of cloud is he MOST LIKELY seeing?
Answer:
its called a cumulus cloud
Explanation:
white, puffy clouds that look like pieces of floating cotton. Cumulus clouds are often called "fair-weather clouds". The base of each cloud is flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.
Match the following celestial bodies with the correct description.
1. made mostly of hydrogen and helium
meteoroid
2. hottest planet in the solar system
comet
3. have heads and tails
Venus
4. pieces of metal or stone that come into Earth's atmosphere
sun
5. orbit around planets
satellite
Answer:
1-sun
2- Venus
3- comet
4- meteoroid
5-satelite
Explanation:
i think those are correct
The humpback whale is a large marine mammal that lives wide spread throughout the North Pacific Ocean. Barnacles are small marine crustaceans that will attach themselves to the bodies of humpback whales. Though the barnacles grow on the skin of whales to filter feed, they are too small to harm the whale. This example best defines which of the following
commensalism
mutualism
parasitism
predation
Answer:
commensalism
Explanation:
the barnacles benefit from the whale while the whale doesn't but the whale isn't harmed either
1 connection between mutations and reproduction
Answer:
An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without mutation, evolution could not occur.
Explanation:
What has happened to the ecosystem since the wolf has been reintroduced to Yellowstone?