Ocean water is-
A. mixture
B. compound
C. element
D. fresh water
Answers
Related Questions
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
Answers
Answer:
b
Explanation:
I took test
Answer: 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 pot.
Explanation:
This option provides a clear and practical approach to the seed germination investigation. By setting up different conditions for the seeds, such as light vs. dark or wet vs. dry, the students can observe and compare how these conditions affect the germination process. Additionally, potting the same seed in multiple pots allows for a controlled comparison within the experiment.
By manipulating these variables, the students can gather valuable data and observations regarding the influence of light and moisture on seed germination. This approach promotes a hands-on and investigative learning experience, encouraging students to actively engage with the scientific process while documenting the changes that occur over time, such as the emergence of roots and shoots.
1. What is a correct way of naming an organism using the binomial system?
A. Common buttercup
B. ranunculus acris
C. Ranunculus acris
D. Ranunculus sp.
2.When a substance is added to meat, amino acids are produced. What is this substance?
A a hormone
B an enzyme
C an oil
D water
Which group of compounds ensures that metabolic reactions take place effectively?
A carbohydrates
B enzymes
C fatty acids
D hormones
Answers
Answer:
Question 1 :
Ans - C
Explain - Binomial system is made up of Genus (Capital letter) and species (small letter).
# order needs to be correct, Genus
species
Question 2 :
Ans - B
Explain - Meat contain protein where enzymes break down protein into amino acids.
Question 3 :
Ans - B
Explain - Enzyme is a biological catalyst where they speed up chemical reaction.
1. The correct way of naming an organism using the binomial system is Ranunculus acris.
2. When an enzyme is added to meat, amino acids are produced.
3. Enzymes ensures that metabolic reactions take place effectively.
What is binomial system?"Binomial system/nomenclature is the biological system of naming the organisms in which the name is composed of two terms, where, the first term indicates the genus and the second term indicates the species of the organism."The first letter of genus should be in capitals.The species name should be in small letters.What is an enzyme?Enzymes are biological catalyst that increases the rate of metabolic reactions.What are amino acids?"Amino acids are molecules that combine to form proteins."Meat is abundant in protein and when protein digestive enzymes are added it breaks down into its simpler form i.e., amino acids.
Hence the correct answers are: 1. C. Ranunculus acris, 2. B. an enzyme and 3. B. enzymes.
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Count the number of breaths you take in a minute and compare it with the number of times a fish opens and closes its mouth. Which of the two is faster? What could be the reason?
Answers
Answer:
breath we take in minutes
Charles Darwin made many observations of organisms in the world around him. While on a voyage around the world, Darwin discovered fossils that looked similar to living organisms. Which of the following would Darwin suggest based on his observations?
Living organisms and fossil organisms must be related in some way.
Living organisms and fossil organisms were the same types of organism.
There was no relationship between living organisms and fossil organisms.
Answers
Help
How does the coriolis effect cause global winds to move in the Northern and Southern hemisphere?
Answers
Answer:
But because the Earth rotates, circulating air is deflected. Instead of circulating in a straight pattern, the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths. This deflection is called the Coriolis effect.
Explanation:
The Coriolis effect influences all winds, not just global ones
Hope it helps you
Most plants grow best in soils with a pH of between ______ and ______.
Answers
Answer:
Most plants grow best in soils with a pH of between ___5___ and ___7___.
Explanation:
List 3 negative impacts does plastic pollution have on the ocean?
Answers
Ingestion
And suffocation
Answer:
Negative physical impact on marine life, chemical impact on the water, and transport of native species.
Explanation:
Negative physical impact on marine life:
Plastic can be dangerous to creatures living in the ocean. Marine animals can fatally swallow plastic, become entangled in it, and even become physically impaired for the rest of their life.
Chemical impact on the water:
Plastics carry chemicals such as PCBs and DDT that can invade the water and cause harm to marine ecosystems.
Transport of native species:
Plastic can carry organisms from one part of the ocean to a relatively remote area. By introducing new organisms to an ecosystem, the flow can be disrupted and result in major consequences.
explain how the following helps a plant to survive:
(a) fast growth
(b) a deep, wide root system
(c) brightly coloured flowers
Answers
B - the root system can help the plant become more grounded and stable, also makes it easier to absorb water
When reading about the history of science, you often learn about individual people and the amazing things they discovered or invented. However, when learning about experiments from long ago, you might not agree with the methods used at the time. If scientists repeated the experiments today, they would probably make some changes in how they are carried out.
Priestley’s experiments, for example, were a remarkable breakthrough in the understanding of photosynthesis. He helped show an important relationship between plants and animals. However, his experiments resulted in the death of a lot of mice.
Answer one of the following prompts to begin your discussion:
Do you think that the results of Priestley’s experiments were important enough to make it okay that so many mice were killed in his experiments? Why or why not?
If you could do the experiment again, how would you design it so that you could reach the same conclusions without harming any animals?
Answers
Photosynthesis sustains aerobic life on Earth, and Joseph Priestley first demonstrated this in the 18th-century Bellger experiment with mice and mint plants. To demonstrate the fragility of life on Earth, Priestley's experiment was recreated by placing humans in a modern-day bell his jar.
After 48 hours, the oxygen concentration in the reservoir had risen to 18.1% of his, and the subject's hypoxemia was alleviated (arterial blood oxygen saturation increased from his 86% at the beginning of the experiment to his increased to 99%). Carbon dioxide levels increased up to 0.66% during testing.
This simple but unique experiment highlights the importance of plants in Earth's ecosystems by demonstrating our dependence on restoring and maintaining oxygen levels to support aerobic metabolism. increase. Without plants in sealed enclosures, oxygen levels would have dropped and carbon dioxide levels would have risen to levels unsustainable for human life.
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Is there a way to select for desirable traits in plants and animals?
Answers
Answer:
yes there is
Explanation:
genitic modification
Answer:Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
Write the chemical formula for (2) Nitrogens + (3) Hydrogens + Oxygen
Answers
Answer:..
N2H30 OR O2
Question 4 (1 point)
Solar panels that heat water use the Sun's radiant energy to reduce the need for non-renewable energy sources.
-O True
O False
Answers
Answer:
The Correct answer is TRUE
30 POINTS ANSWER ASAP NEED HELP SCIENCE QUESTION JUST DO THE GRAPH FILL IN EVERY BOX
Answers
Answer:
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Explanation:
Hope this helped!! please give me brainliest :)
A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement best explains why the daughters’ physical appearance includes both similar and different features?
A: One daughter received fewer genes than the other.
B: Each daughter received a different number of genes from each parent.
C: The daughters received a random set of genes from both of their parents.
D: One daughter received all her genes from her father, and the other daughter received all her genes from her mother
Answers
C: The daughters received a random set of genes from both of their parents.
The physical appearance of an individual is determined by their genes, which are inherited from their parents. Each parent contributes half of their genes to their offspring, and the combination of genes from both parents determines the physical characteristics of the offspring.
When the two daughters inherit genes from both their parents, they receive a random set of genes from each parent, which can result in both similar and different physical features. Therefore, statement C is the best explanation for why the daughters' physical appearance includes both similar and different features.
1. What kinds of pollution do you know? Which is the worst? Discuss in group.
2. What are fossil fuels? Give examples. Where are they used? Can they be replaced?
3. Some factories dump waste water in rivers and ocean. How can we prevent this?
4. People throw away tons of garbage everyday. How can we reduce the amount of garbage?
5. Do you drink bottled water? Why or why not? What is its effect on the environment?
pls 3-5 sentence and then explain briefly the answer. ty
Answers
Answer:
1. There's air pollution, water pollution, noise pollution, and light pollution. The worst pollution is air pollution because it can cause severe health problems like respiratory diseases or even cancer.
2. Fossil fuels are resources that are formed from the remains of dead plants and animals. An example would be coal, oil, and natural gas. These fuels are used to generate electricity, power vehicles, heat homes and buildings. Yes, there many other energy sources that can replace fossil fuels.
3. One way to prevent factories from dumping waste water in rivers and oceans is to implement stricter regulations and penalties for those who violate them.
4. One of the best ways to reduce the amount of garbage is to reduce, reuse, and recycle.
5. Yes, I drink bottled water because it's more water to drink from a bottle and its effect on the environment is recycling and being reused.
1. Pollution can be of many types such as air pollution, water pollution, noise pollution, and land pollution. In my opinion, air pollution is the worst because it affects people's health and can cause breathing problems, heart diseases, and even cancer. Discussing this issue in a group can help us understand different perspectives and find solutions to reduce pollution.
2. Fossil fuels are non-renewable sources of energy that are formed from the remains of dead plants and animals. Examples of fossil fuels include coal, oil, and natural gas. They are used to generate electricity, fuel vehicles, and heat homes. However, they are a major contributor to air pollution and climate change. Fossil fuels can be replaced by renewable sources of energy such as solar, wind, and hydro power.
3. Factories dumping waste water in rivers and oceans can have a negative impact on aquatic life and the environment. To prevent this, factories can treat their waste water before discharging it into the environment. Governments can also enforce strict regulations and penalties for factories that violate environmental laws.
4. To reduce the amount of garbage, we can follow the three R's - reduce, reuse, and recycle. We can reduce the amount of waste we generate by using reusable bags, bottles, and containers. We can also compost organic waste such as food scraps and yard waste. Recycling can also help reduce the amount of garbage by turning waste into new products.
5. I try to avoid drinking bottled water because it generates a lot of plastic waste that can take hundreds of years to decompose. Plastic waste can also harm wildlife and pollute the oceans. Instead, I use a refillable water bottle and fill it with tap water. Tap water is safe to drink in most developed countries and can be a more sustainable choice.
Select your answer from the choices below, then write them on its appropriate column.
Answers
Answer: The duties that the students and community members have to be done to save our environment and resources
Explanation: My part as a students
1. Switch off classroom lights and fans when not in use.
2. Plant a tree (in vacant lot / backyard).
3. Join environment friendly groups.
4. Switch to non- plastic water bottles.
5. Switch off faucets in the school or park when not in use.
My initiative as a Community Member
1. Conserve water.
2. Throw garbages in the trash can.
3. Decrease the amount of paper you print.
4. Minimize the use of plastic when buying good
5. Volunteer for clean-up drives.
The correct options that have to be filled in its appropriate column are:
The part as a Student in conserving the environment.
Decrease the amount of paper you print.Switch off classroom lights and fans when not in use.Conserve water.Switch to non-plastic water bottles.Minimize the use of plastic when buying goods.My Initiative as a Community MemberVolunteer for clean-up drives.
Join environment-friendly groups.Plant a tree (in a vacant lot/backyard).Throw garbage in the trash can.Switch off faucets in the school or park when not in use.Thus, these are the correct options for the given columns.
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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.
A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)
Answers
Which best explains why sexual reproduction produces greater variations among offspring? *
A The DNA come from two genetically different parents.
B The DNA cells from one parent that is genetically identical.
C The sex cells are produced by mitosis.
D The sex cells undergo self fertilization
Answers
Answer:
A The DNA come from two genetically different parents.
Explanation:
Everyone has different genetics. They are determined by sex cells that are produced by MEIOSIS NOT mitosis. Meiosis allows for genetic variation amoung offspring along with the genetically different parents.
The DNA come from two genetically different parents explains the best reproduction greater variations among offspring.
What is sexual reproduction?Reproduction is the act of one or more parents creating a new individual (offspring), frequently within the same species. It is among the characteristics of a living creature.
Sexual reproduction, we mean a process where two parents' genetic material is combined to create a child. When two haploid gametes combine, a genetically unique diploid child is produced.
The word "sexual" has a Late Latin etymology that stems from the word sexus, which means "of copulation or generation." The word reproduction is also derived from the Latin words re, which means "again," and productio, which means "creation." Alternative: syngenesis.
Therefore, The DNA come from two genetically different parents explains the best reproduction greater variations among offspring.
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Why did some scientists continue to study cold fusion, even though the funding was cut off?
a.) curiosity
b.) They knew that something was occurring that they completely didn't understand.
c.) Some scientists believed in fusion
d.) All of the above
Answers
Answer:
I thnk D, makes mo sense
Explanation:
Pls, choose me as brainliest!
This is true because all the answers are correct.
PLEASE HELPPP!!!!
Birds cannot grasp objects with their wingtips, yet their wings have bones that are homologous to finger bones. How does this homology show an evolutionary relationship?
Answers
Why is so much energy "lost" between trophic levels?
It does not just disappear, what is it used for?
Answers
Answer:
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat.
Explanation:
When the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.
GIVING 37 POINTS AND BRAINLIEST !!!!! URGENT
Please answer all of the questions
Subject: science
Answers
Answer: 2nd question=2
3rd= 11.46 million years
4th=250grams
5th=5.2billion years
6th=2130 million years
7th=4 times
Explanation:
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Let me know if you need more help
answer with explains and reasons please ( ill mark brainlist )
Mount Everest is the world's highest mountain. It is 29,028 feet (9km) above sea level. It is located in the Himalayas between Nepal and China. But now that we have sonar, we know about Mauna Kea. Mauna Kea is on Hawaii Island. It is 13,448 feet (4km) above sea level. From its base on the ocean floor, it is 33,796 feet (10km)! Should we still consider Mount Everest to be the highest mountain? Why or why not?
Answers
Answer:
I think Mount Everest should still be called the highest mountain
Explanation: Based on tradition, mountains are not measured from their bases but from sea level so considering this Mount Everest should still be called the highest mountain in the world. However despite this, some may say it should not be.
Every compound can be represented by a chemical formula. A chemical formula is the set of symbols showing the elements that make up a compound and their proportions. Water’s chemical formula is H_2 2 O. That means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. A molecule is a group of two or more atoms bonded together. Molecules can range in size from two to thousands of atoms. A molecule of a compound is the smallest unit of that compound. Every molecule of water has all the physical and chemical properties of water. That’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! Which of the following is a true statement?
A
Every molecule of the same compound will have different properties.
B
Every molecule of a compound has the same proportion of elements.
C
Molecules can be physically separated into smaller units of a compound.
D
Molecules cannot be represented by chemical formulae.
Answers
Answer: The answer is b!
Explanation:
B. Every molecule of a compound has the same proportion of elements.
What is a chemical compound?A chemical compound is a substance made up of two or more different elements that are chemically bonded together. The elements in a chemical compound are present in a specific ratio, and the properties of the compound are determined by the properties of its constituent elements and their arrangement.
Examples of chemical compounds include water (H2O), table salt (NaCl), and carbon dioxide (CO2). The chemical formula of a compound represents the types and number of atoms present in a single molecule of the compound. In the case of water, the chemical formula is H2O, indicating that it is made up of two hydrogen atoms and one oxygen atom.
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Which of the following adaptations would help a tree-dwelling nocturnal scavenger survive in its environment?
Light-colored fur
Heels with fur
Night vision
Short snout
Answers
Fungus and algae living together form………..?
Need help now. 15 points
Answers
Answer:
Im pretty sure its Lichens
Explanation:
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Answers
Arrow 'f' releases carbon dioxide.
Answer:
F I think I am not sure though hope I helped.
What conclusions did Mendel draw from these results and from experiments with other
pea-plant traits? Describe genetic factors and the principle of dominant/recessive.
Answers
Answer:
and, after analyzing his results, reached two of his most important conclusions: the Law of Segregation, which established that there are dominant and recessive traits passed on randomly from parents to offspring (and provided an alternative to blending inheritance, the dominant theory of the time), and the Law of
Explanation:
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Define what makes up an ecosystem