How did the elements begin to stratify?
Answers
Related Questions
Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?
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Answer: 4
Explanation:
describe the abiotic factors of our community tell how you depend on the factors.
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What is produced by the process of meiosis?
A.
Cells that are an exact copy of the parent cell.
B.
Cells that are exact copies of all the other daughter cells.
C.
Cells that contain half of the number of chromosomes present in the parent cell.
D.
Cells that contain the exact number of chromosomes present in the parent cell.
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Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for reproduction. So basically saying, C is the right answer.
Explanation:
If a photosynthesis reaction begins with 3 grams of reactants, what will the total mass of the products be?
Answers
Answer: 3 g
Explanation: masses of products is same as masses of reactants.
Light is giving energy to reaction
Observation
Use your senses to make an observation about your environment.
Questions
Create a hypothesis that can be tested in an experiment.
Remember, a hypothesis has a specific "if then" wording.It describes what will happen to the dependent variable when changes are made to the independent variable.For example, "If a plant is fertilized (independent variable), then it will grow faster (dependent variable)."
Design and plan an experiment.
Be sure to identify an independent variable, a dependent variable, and any controls.Remember, controls are factors which stay the same.In an experiment designed to test the previously stated hypothesis, one control would be to use the same kind of plant.Write a complete description of your experiment.Include a list of necessary materials.It is a good idea to follow a step-by-step procedure format.Think of everything you need to do, then write it down in the order it must be completed.Your description and procedure should be clear enough that another person could duplicate your experiment exactly.
Answers
Answer: E
Explanation:
Experiment Design:
Independent Variable: Intensity of light (Low, Medium, High)
Dependent Variable: Rate of photosynthesis (measured by oxygen production or CO2 consumption)
Control: Same kind of plant, constant temperature, constant CO2 concentration, constant water availability, and constant duration of light exposure.
Materials:
Three identical potted plants (of the same species)
Light source(s) with adjustable intensity
Light meter (lux meter) to measure light intensity
CO2 gas sensor or oxygen gas sensor
Timer or stopwatch
Water supply
Thermometer
Data recording sheets
Procedure:
Set up the three identical potted plants in a controlled environment with the same temperature and CO2 concentration.
Ensure that all plants receive the same amount of water.
Place the light source(s) at an equal distance from the plants.
Measure and record the initial light intensity using the lux meter.
Adjust the light intensity to low for the first plant, medium for the second plant, and high for the third plant.
Start the timer and expose the plants to light for a specified duration (e.g., 1 hour).
During the exposure period, measure and record the temperature, CO2 concentration (if possible), and light intensity at regular intervals.
After the exposure period, use the CO2 gas sensor or oxygen gas sensor to measure the change in CO2 concentration or oxygen production, respectively, in the surrounding air.
Record the data obtained from the sensors and calculate the rate of photosynthesis for each plant.
Repeat the experiment multiple times to ensure reliability and average the results.
Analyze the data collected and compare the rates of photosynthesis among the three different light intensities.
Draw conclusions based on the analysis and determine whether the hypothesis is supported or rejected.
By following this experimental design, you can test the hypothesis and determine the effect of light intensity on the rate of photosynthesis in plants. Remember to conduct the experiment in a controlled environment and gather sufficient data for accurate analysis.
5. Complete the sentences to describe some important examples of active transport.
The concentration of glucose molecules in the ___________ of the
small intestine is ___________ than the concentration inside the
intestinal villi. This means that glucose would ___________ from the
villi into the lumen, but this can’t happen because the body needs to take
in the glucose, not lose it. Instead, special ___________ proteins in
the cell membrane use ___________ to move the glucose into the villi
against its ___________ gradient.
Similarly, the amount of glucose inside of the blood in the kidneys is
___________ than it is in the tubule, but it must move out of the
tubule. Glucose moves into the blood by ___________
___________.
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Answer:
do you still need help with this
Explanation:
Existing rocks are buried and forced toward the mantle, increasing heat and pressure. This is the first step in the formation of metamorphic rocks.
(PLEASE HELPPPP 90 POINTS!!)
Which best describes the next step in the formation of metamorphic rocks?
Buried rocks melt deep within the mantle.
Lava melts underlying rocks, which crystallize into new minerals.
Rocks that were buried are exposed at Earth’s surface, where they are weathered and eroded.
Magma pockets rise, which increases heat, and minerals change due to temperature and pressure.
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The correct answer is B. When buried rocks are forced toward the mantle, they undergo extreme heating and pressure, which can cause them to melt. This molten rock is known as magma, which then crystallizes as new minerals as the magma cools and solidifies. This process is known as metamorphosis and is the second step in the formation of metamorphic rocks.
Buried rocks melt deep within the mantle.
Look at the diagram of the rock cycle below.
Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration
Answers
it’s melting
From the diagram of the rock cycle the missing part is ( B ) ; Melting
Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.
Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting
Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.
Learn more : https://brainly.com/question/23661578
Look at the branching tree diagram below.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.
Which group of organisms evolved before reptiles?
Only marsupials
Only amphibians
Both marsupials and dogs
Both amphibians and marsupials
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Answer:B would be the correct answer
Explanation:
PS: Sorry if I’m wrong
pls help me will mark brainlyest :) :
Internal and External Structures
You are now going to construct an argument that plants have internal and external structures that support growth and reproduction.
Choose the internal and external structures you want to gather evidence and create a statement about.
subject: sciences
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Explanation:
Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heartStructure and Function: Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.
I hope this helps! Good Luck!
Which of the following correctly describes a difference between the temperate climate zone and polar climate zone?
1: Polar zones have cold temperatures year-round, and temperate zones have warm to
hot temperatures year round.
2: Polar zones have four distinct seasons, and temperate zones only have the two
seasons summer and winter.
3: Summer in temperate zones is a drier time, but in polar zone more precipitation
occurs in the summer.
4: The temperate zones get at least 150 cm of precipitation and polar zones get little to
no precipitation.
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Answer:
Number 4
Explanation:
Answer:
a
Explanation:
Tissues are to cells as organ systems are to _____.
A: populations
B: tissues
C:organisms
D:organs
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Answer:
organs
Explanation:
Organs are to organ systems
20 PTS Animals are connected within an ecosystem. For example, plants are food for other animals. Those animals become food for other, larger animals. This animal connection is known as ______.
the food web
the air they breathe
the rate at which they use energy
the predators present
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Answer:
A. The food web
Explanation:
Why it was important that Gregor Mendel used thousands of pea plants in his experiments? Would Mendel have found the same results if he had used only twenty plants? Explain.
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Answer:
Explanation:
Gregor Mendel used thousands of pea plants in his experiments to ensure that his results were accurate and reliable. By using a large sample size, he was able to reduce the effects of chance and random variation in his experiments. This is important because biological systems are complex and variable, and small sample sizes can lead to inaccurate or misleading results.
Mendel's experiments involved crossing pea plants with different traits (e.g., tall vs. short, yellow vs. green), and he counted the number of offspring with each trait. He found that the offspring followed predictable patterns of inheritance, which he summarized in his laws of inheritance.
If Mendel had used only twenty plants in his experiments, he may not have obtained the same results. With a small sample size, chance events can have a greater impact on the results. For example, if he crossed two pea plants with different traits and obtained only a few offspring, it's possible that chance events (such as mutations or environmental factors) could have influenced the results. This could lead to false conclusions about the inheritance of the traits.
Therefore, using a large sample size was critical to Mendel's success in developing his laws of inheritance. It allowed him to detect patterns that were consistent across many different crosses, and to demonstrate that these patterns were not the result of chance variation.
Seed Germination Investigation
The students are to investigate the process of seed germination during their summer
vacation.
They will select different types of seeds, such as beans, peas, or sunflower seeds.
Encourage students to set up a germination experiment by placing the seeds in
different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to
pot the same seed in more than one pots.
They should observe and document the changes that occur over time, including the
emergence of roots and shoots.
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Answer:
Okay...In this case I suggest you use corn seed or beans seed
Explanation:
It should take about 6 weeks to see the Germination, until then continue watering it and giving it sunlight
The seed germination investigation during the students' summer vacation involves selecting various seeds (e.g., beans, peas, sunflower) and setting up an experiment. They will place the seeds in different conditions, like light vs. dark or wet vs. dry, and pot the same seed in multiple pots. Throughout the investigation, the students are expected to carefully observe and document the changes that take place over time, including the growth of roots and shoots. This hands-on approach allows them to gain practical knowledge of seed germination and develop essential scientific skills in observation, data collection, and documentation.
What two Units do Astronomers use to calculate Distance to Stars
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Answer:
astronomical unit (AU) and light years
Explanation:
Select the sentence that suggests that scientists still have NOT perfectly copied spider’s silk.
A: Spiders evolved this process over hundreds of millions of years, Shah said.
B: The latter two parts are held together by molecules called cucurbiturils that serve as ‘handcuffs.’
C: The fibers are extremely strong- though not quite as strong as the strongest spider silks.
D: This means that if they can be produced at scale, they have an advantage over other synthetic fibers, such as nylon.
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write a scientific explanation about how index fossils aid geologists in determining the age of rock layers
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Index fossils aid geologists because when they are looking into rock layers they see if the index fossils match to a rock layer and if they do it means they the rock layer was created at the period of time the index fossil was.
How is data represented?
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Infectious Disease Investigation
The students are to investigate an infectious disease.
They will choose a specific infectious disease, such as the flu, common cold, or
COVID-19, and research its causes, symptoms, and preventive measures.
Students are to create informative posters or presentations about the disease,
including its transmission methods and ways to protect oneself from infection.
They will explain the importance of personal hygiene and vaccination in preventing
the spread of infectious diseases.
Following the summer vacation, the students will be given an opportunity to present
their findings to the class or organize an "Infectious Disease Awareness Campaign"
where they can share their posters or presentations with their peers.
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Answer:
The common cold is an illness affecting your nose and throat. Most often, it's harmless, but it might not feel that way. Germs called viruses cause a common cold.
Often, adults may have two or three colds each year. Infants and young children may have colds more often
What is the goal of Meiosis 1?
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Answer:
In meiosis I, chromosomes in a diploid cell resegregate, producing four haploid daughter cells
Answer:
Meiosis I is the reduction division, and meiosis II is more similar to mitosis in that the sister chromatids are separated. The goal of meiosis I is to separate homologous chromosomes. The goal of meiosis II is to separate sister chromatids. In meiosis II, no DNA is duplicated as in prophase I of meiosis I.
Explanation:
Imagine that one tree outside your home looks unhealthy, although all the other trees seem healthy and strong. Describe how you could apply scientific thinking to the situation to determine why one tree looks unhealthy but the other trees look healthy. Write your answer in the space below.
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That tree could be older than the other trees, and the tree might be dying down
With the prom approaching, Carl wanted everything to be just right. One thing that was not “just right” was his complexion. Carl watched movie star after movie star on television talk about the great results they had when using Zero Zits blemish cream. Carl decided to try the product. He bought a tube and carefully followed the directions. With the prom only ten days away, Carl was hoping to look his best. The results of Zero Zits use can be seen in the graph.
What is the MOST valid conclusion regarding Carl’s experience with Zero Zits?
A) Carl used the cream incorrectly.
B) The cream removed all of Carl's blemishes.
C) Carl's diet caused many more blemishes to develop.
D) Initially the cream seemed to work but new blemishes developed.
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Answer:
D.Initially the cream seemed to work but new blemishes developed.
Explanation:
According to the graph in the beginning it began to work but then he gained more blemishes.
Hope it helps. :)
What is a Protista?
(HERE BESTIE) part 2
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Answer:
noun
a kingdom or large grouping that comprises mostly single-celled organisms such as the protozoa, simple algae and fungi, slime molds, and (formerly) the bacteria. They are now divided among up to thirty phyla, and some have both plant and animal characteristics.
Explanation:
What is the Tropical Rainforest Biome
Answers
suggest why the phone and watch being connected by a wireless system is an advantage when running
Answers
Explanation:
because the full movie called the amount of each other and can help you to like let's say 11 in it to keep on counting the distances you won't be keeping record of it so that you will know that you did you did a great
Lab: Owl Pellets 2. What procedure did you use to complete the lab?
Outline the steps of the procedure in full sentences.
Answers
Answer:
Procedures that needs to be considered to complete the lab are- a thorough knowledge of lab assignments, knowledge about safety equipment, reviewing the MSDS of chemicals for lab experiment etc.
Explanation:
To be lab prepared one must follow these procedures-
1. One should have the knowledge of lab assignments to make the lab experiment easier.
2. To be aware about safety equipment and their uses in lab, like- the location of fire extinguisher in lab.
3. To know the steps of experiments to be performed
4. To fill notebook of lab with information regarding the experiment
5. One should review the data sheets of chemicals material safety.
6. To put on all the necessary dressings to perform experiment.
7. To have complete understanding about the experiment disposals.
Answer:
Procedures that needs to be considered to complete the lab are- a thorough knowledge of lab assignments, knowledge about safety equipment, reviewing the MSDS of chemicals for lab experiment etc.
Explanation:
To be lab prepared one must follow these procedures-
1. One should have the knowledge of lab assignments to make the lab experiment easier.
2. To be aware about safety equipment and their uses in lab, like- the location of fire extinguisher in lab.
3. To know the steps of experiments to be performed
4. To fill notebook of lab with information regarding the experiment
5. One should review the data sheets of chemicals material safety.
6. To put on all the necessary dressings to perform experiment.
7. To have complete understanding about the experiment disposals.
Explanation:
creds to the one above me
yw :) edge
The water cycle is also called the Hydrolic Cycle.
It is the process by which water circulates between Earth’s oceans, atmosphere, and land.
It involves the following:
Water storage
evaporation
transpiration
_________________________
_________________________
_________________________ hold 96.5% of Earth’s water.
This is the primary pathway into the water cycle.
Oceans, seas, lakes, and rivers provide _____% of the moisture in our atmosphere through evaporation.
The process by which water changes from a _________________________ to a _________________________ .
It is the primary pathway that water moved from the liquid state back into the water cycle as _________________________ .
_________________________ (energy) from the sun is necessary for evaporation to occur.
Energy _________________________ bonds that hold water molecules together.
Boiling Point: _________________________
Freezing Point: __________________________
_________________________ is the process of snow and ice changing into water vapor without first melting into water.
_________________________ is water lost to the atmosphere when the ground surface and transpiration of groundwater by plants through leaves.
Superhighway used to transport water around the globe.
Involves _________________________ and _________________________ .
The process in which water vapor in the air changed into _________________________ .
The loss of _________________________ allows water molecules to bond,
Forms _________________________ or _________________________ .
Is water released from clouds in the form of:
_________________________
_________________________
_________________________
_________________________
_________________________
Provides the delivery system of _________________________ water to the Earth.
These are examples of water locked up in its present state of matter for a relatively long period of time.
This involves _________________________ and _________________________ .
This is _________________________ that did not get absorbed into soil, or evaporate.
_________________________ and _________________________ provides runoff when they melt._________________________
Water moved by _________________________ makes its way into places that collect water.
_________________________
_________________________
_________________________
_________________________
This is the downward process of moving water from the _________________________ into soil or poros rock.
_________________________ is large amounts of water stored in the ground.
_________________________ is another name for groundwater.
This is the area of land where all the water that dallas in it and grains off of, goes into the same place.
It can be as small as a footprint or as large as all the land that drains water into the _________________________ .
Answers
Answer:
The answer is water storage
Explanation:
The answer is water storage because water is managed, if water was not managed we will be walking in water instead of walking on grass.
How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels.
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy. (I think it's B. Please correct me if I'm wrong.)
Answers
Answer: You're right its b.
Explanation:
Human activity has rapidly increased the emission of greenhouse gases to the atmosphere. Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.
HELP ASAPPPPPP all u need to know is in the photo
Answers
Answer:
C is the answer
Explanation:
my teacher told us it in like 4th grade
Answer:
C
Explanation:
In solids, particles are very closely packed in an orderly arrangement in a lattice and only vibrate in fixed positions. The forces of attraction between them are very strong. ... This allows them to overcome the forces of attraction that hold the other phases closer together.
Hope this helps :)