Answer:
D. Sound waves can move through a vacuum.
Explanation:
Sound waves can move through a vacuum is an incorrect statement.
• Sound is a kind of energy produced by vibrations. These vibrations generate sound waves that move via the mediums like water, air, and wood.
• The sound waves are not visible as it is a form of energy, sound waves generate movement in the object, which continues till the particles run out of energy.
• A sound wave mediates its energy through particle interaction, and a sound wave cannot travel via a vacuum, this shows that sound is a mechanical wave.
Thus, sound waves cannot move through a vacuum. Option A is not true.
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Describe two things that would happen in an ecosystem if there were no unicellular organisms. Explain why something with only one cell can be considered to be an organism.
Unicellular organisms include bacteria, protists, and yeast. For example, a paramecium is a slipper-shaped, unicellular organism found in pond water. It takes in food from the water and digests it in organelles known as food vacuoles. Nutrients from the food travel through the cytoplasm to the surrounding organelles, helping to keep the cell, and thus the organism, functioning. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells. One can easily observe the differences in these cells under a microscope. Their structure is related to their function, meaning each type of cell takes on a particular form in order to best serve its purpose. Nerve cells have appendages called dendrites and axons that connect with other nerve cells to move muscles, send signals to glands, or register sensory stimuli. Outer skin cells form flattened stacks that protect the body from the environment. Muscle cells are slender fibers that bundle together for muscle contraction. The cells of multicellular organisms may also look different according to the organelles needed inside of the cell. For example, muscle cells have more mitochondria than most other cells so that they can readily produce energy for movement; cells of the pancreas need to produce many proteins and have more ribosomes and rough endoplasmic reticula to meet this demand. Although all cells have organelles in common, the number and types of organelles present reveal how the cell functions.
Hope that helps!!
If there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.
Unicellular organisms are small single celled organisms that can be observed through microscope but not with naked eye. The unicellular organisms are bacteria, fungi, virus, and protists. If no unicellular organisms are present in the ecosystem then there will be no nitrogen fixation by the soil bacteria like Nostoc, Cyanobacteria, and others. Since, plants cannot utilize atmospheric nitrogen directly so these bacteria convert the atmospheric nitrogen into plant usable form that is ammonia. When no soil bacteria present in the soil ecosystem then the plants will not be able to grow as ammonia is a chief ingredient of many biomolecules in plants. If there will be no unicellular organisms then there will not be any decomposition process of the organic matter and the waste of dead animals, plants, and other living beings will not recycle into plant usable form this will limit plant growth and will also affect the natural cleaning mechanism of ecosystem. Only one cell can be considered an organism if it shows characteristics of an organism like food intake, respiration, reproduction, and growth.Hence, if there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.
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What is the corresponding RNA sequence for the DNA strand above?
its the letter c hope u have an amazing day
. What provides most of the water for the water cycle?
This is the text PLEASE HAS TO BE TURNED IN IN 5 MIN
Answer:
The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor.
Explanation:
Describe the coral reef. Pls answer asap thxs...
Answer:
A coral reef is a structure in shallow ocean areas that is formed mainly by stonelike coral skeletons.
PLEASE HELP ME NOW !!!!! When a tornado approaches, some organisms flee and some organisms take shelter; but other organisms are unable to do either. Which of the following organisms would be at the most risk if a tornado passed through its habitat?
Answer:fish bugs
Explanation:
Answer:
small animals
What is the element name for 3.3%
Answer:
Nitrogen
Explanation:
Evaluate if knowing the type of the source of pollution helps make clean-up easier. Justify your opinion in 4-6 sentences and using at least 3 direct quotes from the article.
Knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.
What is the significance of knowing the types of pollution?Knowing the source of pollution can make clean-up easier because it allows for targeted and effective removal of the pollutants as it identifies the specific source of the pollution rather than trying to address pollution throughout a wider area. It also helps in determining the most appropriate remediation technique to use, the cost of clean-up, etc.
Hence, knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.
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Which of the following lists the reactants (raw materials) needed for photosynthesis to occur? *
1 point
Carbon dioxide + water
Sunlight + glucose
Water + oxygen
Glucose + oxygen
Answer:
carbon dioxide and water
Explanation:
carbon dioxide and water are the raw materials needed to start the reaction. They are on the left side of the equation so that is how you know.
The self-regulation of the internal environment of organisms or cells is called _____________.
Answer:
Homeostasis
Explanation:
O∵ 3 ∵O
Which statement is true of both the desert and tundra biomes? They both have –
very low temperatures.
very low temperatures.
four seasons.
four seasons.
very low precipitation
very low precipitation
high biodiversity.
Answer:
Very low precipitation
Explanation:
Answer
Very low precipitation
Explanation:
Someone pleas help :(
Which statement below best describes the connection between photosynthesis and respiration? *
1 point
Both have the same products.
Both have the same reactants.
Both require energy from the sun.
The products of one are the reactants of the other.
Plz help i will give brainliest. Thank you to however helps and its 30 points
HELP!!!!!!!!!!!!!!!!!!!!!!
An alien civilization has different names and symbols for six elements.
Answer: GOOGLE a periodic table to find the spots that are empty. Name those places and then label them.
Explanation:
I dunno if this is right but it’s my best bet.
Plants could not live if they were unable to get water and nutrients from soil. In some places, especially deserts, these resource are in short supply so plants must compete with each other for them. Which of the following is an actual strategy used by plants to keep competitors from being a problem?
A) Having very spiky parts above ground
B) Releasing ‘plant poisons’ (herbicides) from their roots into the soil
Answer:
A is your answer.
Explanation:
Hope this helps!
Please mark me brainliest!!!
Do particles in a solid have thermal energy?
Answer:
Yes, but a very low amount because they can only vibrate in place.
Explanation:
A paramecium is a unicellular organism that lives in pond water. It has a cell structure known as a contractile vacuole that uses energy to pump out water so that the paramecium does not burst. What does this demonstrate?
A.) osmosis
B.) diffusion
C.) homeostasis
D.) cellular respiration
In the diagram below, which of the following represents the products that should be shown in arrow "A"? *
1 point
Captionless Image
Oxygen + water
Glucose + oxygen
Carbon dioxide + water
Carbon dioxide + glucose
Explanation:
ydhkhfbnfbcufzncziiguv
Answer:
i am unsure the question here.
Explanation:
The cell membrane of this cell is permeable to water, but not to salt. What will immediately happen when the cell is placed into this solution?
A.) Salt will move into the cell and water will move out.
B.) Water and salt will move into the cell.
C.) Water will flow out of the cell.
D.) Water will flow into the cell.
Answer:
C. Water will flow out of the cell
Explanation:
Remember, Salt draws water out of cells in the process of osmosis.
Find 4 similarities and 4 differences for each viruses and bacteria. I'm giving 20 points! Thanks❤️
I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP
Answer:
Explanation:
Genotypes are the genetic makeup of an organism. Such as the alleles it possesses.
Phenotype is the physical or biochemical traits of an organism. In short their appearance.
I hope this helped!
Answer:
The sum of an organism's observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism's parents, the phenotype is not
Explanation:
hope that's what u were looking for
Please answer the ones u know and Answer them correctly because this is part of my grade :’)
Answer:
hmm hi mate where is the question but???
Answer:
Yea...ok...WHERE IS THE QUESTION?!?!?
Sorry if that seems a little harsh.
Both species benefit in the type of symbiosis called parasitism. Please select the best answer from the choices provided T F
The statement “both species benefit in the type of symbiosis called parasitism” is false.
Parasitism is a type of symbiosis where one organism is harmed while the other benefits.
An example of parasitism is a dog infested with ticks.
The ticks benefit from drinking the dog’s blood, harming the dog in the process.
Plz Plz help me with this its due today so plz help out!!!
Answer:
1.lysosome
2.cell membrane
3.ribosome
4.nucleus
5.golgi body
6.vacuole
7.mitochondrion
8.endoplasmic reticulum
Answer: Use this as a reference sheet for all of your biology assignments!
Explanation:
HELP PLEASE ASAP!!!! I don't understand this
Answer: D
Explanation: you got the one you click on right so no changes needed.
I need structural and behavioral adaptations, can someone explain how I find some or give me examples?
Answer:
The animals find or create a family after the animals find family they find shelter and hunt for food. After the parents have babies they teach the young ones how to survive out in the wild in about 2 weeks after they are born.
I really hope this helps you
And if you don't mind can you mark me brainliest?
what are 5 abiotic things in a forest that are a part of a food web? this is for science
Answer:
minerals, light, heat, rocks, water, temperature, and soil
Explanation:
Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks and water.
Answer:
Sunlight, Temperature, Wind, Water, Soil
Explanation:
You need sunlight for photosynthesis, you need temperature because if a ecosystem or forest is too cold, plants won't grow, if it's too hot, there won't be enough water. Wind because seeds would be transferred throughout. Water, obviously. Soil because nothing can grow without it!
Rock layers labeled A to J from bottom to top. Layers A, B, and C are not horizontal, and are pushed up toward layer E. Layers E, F, I, and J are horizontal. A fault is labeled G, and runs from layer A to the bottom of layer I. Rock layers to the right of the fault are shifted up and do not include layer F. Layer H is Y-shaped, starting below layer A up to layer E, on the right side of the fault. Arrows point to unconformities at the bottom of layer E on both sides of the fault, and the top of layer E on the right side of the fault. Use the drop-down menus to answer the questions about the diagram. Letter H is a(n) . Which of these is youngest? Which of these was eroded? Which happened first?
Answer:
1,3,2,3
Explanation:
Answer:
Letter H is a(n) intrusion.
Which of these is youngest? Letter G
Which of these was eroded? Letter C
Which happened first? Letter F was deposited.
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I just did the review for it and these are the answers. The person above is correct, but if you want what the answer is in wording and not numbers, then this answer would be suited for you.
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Have a great day and God bless! :)
Osmosis is the movement of water from a high concentration to a low concentration.
True or False
Answer:
yes, it's absolutely true statement
A student noticed that a potato left on the counter had begun to sprout. She decided to cut the potato into chunks and plant them. What is true about the plants that grew from this method? (Pick two)
All the plants are genetically unique.
All the plants have identical genetic information.
The original potato regenerated into several plants.
The new potato plants are the product of asexual reproduction.
The new potato plants are the product of sexual reproduction.