Answers
Answer:
The higher the density, the more closely packed the particles called atoms and molecules. The lower the density the more spaced muy the particles are
If density = mass divided by volume, than the more volume a material has the less dense it is. For example, if there are five people in a room that is 5ft. by 5ft. the people will be tightly packed together and more dense. If those same five people were in a room that is 20ft. by 20ft. they would have more space and it would not be as dense in the room.
Related Questions
pls only legit answers im gonna fail this class
While gutting a fish, Nathan encountered an air-filled sac-like structure. What is the purpose of this structure in fish?
A.
It enables fish to breathe in water.
B.
It serves as a reserve space to store fat.
C.
It harbors bacteria that benefit the fish.
D.
It provides buoyancy to the fish.
Answers
Good luck in class :)
Analyze and Interpret Data
Compare the three types of specialized cells that you viewed through the microscope to the generalized cell that you built in Part 1. List which organelles each specialized cell might need in greater numbers than the generalized cell. Offer a reason for each answer.
Answers
Answer:
Can you provide a picture or some more context to your problem so I can help you?
The three types of specialized cells include:
Nerve cellReproductive cellMuscle cellsSpecialized cells are those cells that makes up organ systems of the body.
These cells are interdependent on other cells in the organism.
Their specialization enables them to carry out their functions efficiently.
Organelles are those membrane-bound structures that are found with each specialized cells.
But each specialized cell might need organelles in greater numbers than the generalized cell. These organelles include:
Dendrite and axon: These are organelles found more in the nerve cells of the nervous system than other generalized cells.Mitochondria: These are found more in reproductive cells and muscle cells because they require energy generated by the mitochondria for their movement.Learn more here:
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when you cut an onion, what happens to your eyes? what role do you think the onions' central vacuoles have in your reaction?
Answers
Answer:
They start to water because of the acid.
The control center in a cell is called ______________.
A: nucleus
B: mitochondria
C: cytoplasm
D: none of the above
Answers
Answer:
A.nucleus
Explanation:
The control center of in a cell is called nucleus
In order to provide nutritional information about food, scientists must evaluate how many calories a given food has per serving Given what you know about chemical and thermal energy, which is the best procedure for a scientist to use to determine how many calories are in a certain food?
A Burn the food and determine the change in temperature from the beginning to the end.
B Dissolve the food in water and determine how it changes the boiling point of the water.
C Burn the food and determine how much it raises the temperature of a known amount of water.
D. Dissolve the food in water and determine if it changes the standing temperature of the water.
Answers
Answer:
Explanation:
I am the thing that goes bump in the night. The shadow-like figure all are too afraid to identify in their room. The silent stalker of your waking nightmares and lucid dreams. Do not worry, I can- but will not- hurt you. Your family, however, doesn't have such luck. Do not warn them that I will be following their every move, or it will lead to a grizzly fate for you and your bloodline. I hope that my message has given you closure for the events to come.
In the meantime, you can pray for your family. Maybe I'll have mercy.
The best procedure for a scientist to use in order to determine how many calories are in a certain food is burn the food and determine how much it raises the temperature of a known amount of water. Option C is correct.
When food is burned, it releases thermal energy in the form of heat. The amount of heat energy released can be measured by observing how much it raises the temperature of a known amount of water. This is because water has a specific heat capacity, which means it requires a certain amount of energy to raise its temperature.
By burning the food and using a calorimeter (a device used to measure heat), scientists can accurately measure the amount of thermal energy released. This energy can then be converted to calories, which is a unit of energy commonly used to measure the energy content of food.
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what process produces sex cells (sperm and egg)?
Cellular Respiration
Osmosis
Meiosis
Mitosis
Answers
Overfishing is a huge problem throughout the world. Could lab grown fish solve the problem of world hunger and overfishing at the same time? Explain. I will give brainliest
Answers
Answer:
In some ways yes it could
Explanation:
The state of the rest of the world’s fisheries is far less pretty. Widespread overfishing and shrinking global fish stocks, rising health concerns associated with toxic contamination (including mercury and plastic) of wild fish, and increasing sustainability and health concerns around aquaculture are just some of the challenges now facing the global marine industry. As prominent US marine biologist Dr. Sylvia Earle told the UN in 2015, “The ocean is large and resilient, but it is not too big to fail.”
That’s where “clean fish” come in. Without the ocean pillage or negative health impacts currently associated with captured and farmed fish, cell-grown fish can undoubtedly help ease some of the pressure on the world’s natural ecosystems. “We want to show the public we are doing this for the right reasons, and that we are working on clean fish primarily as a conservation issue” says Finless Foods’ Mike Selden. “Yes, fish is a high-value product. But I also think it is important people know we’re doing this as a conservation issue. Bluefin tuna species are on and off the threatened species list, partially because it’s so expensive. We can take the pressure off these increasingly rare and wild populations.”
What is the sum of hydrogen + h20 =
Answers
3: How is the transfer of bacteria into and out of one person and then into another person similar to or different from how you spread bacteria into and out of one Petri dish and then into another dish?
Answers
Answer:
Bacteria can replicate approximately every 20 minutes by binary fission, which is a simple form of cell division. This level of replication will depend on the availability of nutrients and other suitable conditions, such as temperature.
Part 1
1. Four levels and six different groups of organisms are described in the popup Windows. What
kinds of behaviors and interactions among the organisms of this habitat can you observe in
the animated snapshot of the reef environment?
I
Answers
Answer:
Mutualism, commensalism and parasitism.
Explanation:
Interactions among the organisms such as fish, corals, lobsters, clams, seahorses, sponges, and sea turtles etc can be observe in the reef environment. reef environment refers to the coral reef which are present in the underground ecosystem. It is made up of calcium carbonate that provides habitat or shelter to thousands of animals. Some behaviours are mutualism, commensalism and some are parasitism.
The reef depicts the interaction of various organisms such as crabs, lobsters and sponges. The reef environment is made up of corals. The reef is made on the deposits of calcium carbonate hence shelter bed for thousand of organisms
Some behaviors like the mutualism, commensalism, and parasitism can be found. The mutualism is based on the mutual harmony of these organisms with each other in the same environment. The parasitism depicts the dependence of the small organisms that feed and depend on the larger organisms for shelter and food.Thus they depicts mutualism, parasitism, and commensalism in the environment.
Learn more about the 4 levels and six different groups of organisms.
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Identify the defining characteristics of animals
Answers
Answer:
what it eats where it lives prey
1. The drug is effective when its concentration is at or above 70 mg/ml. For what length of time is the concentration at or above this level?
Answers
How many
dependent
variables do you
want in an
experiment?
Answers
Answer:
you only want 1
Explanation:
hope this helps
Answer:
You want two dependent variables in an experiment.
Explanation:
If carbon dioxide was removed from a plant's environment, what would you expect to
happen to the plant's production of sugars?
O fewer sugars will be produced
more sugars will be produced
O carbon dioxide does not affect the production of sugars in plants
o the same number of sugars will be produced but without the carbon dioxide
Answers
Answer: Fewer sugars will be made because plants use carbon dioxide in photosynthesis.
Hope this helps
Plants are autotrophs, which prepare their food in the presence of sunlight, water, and carbon dioxide to yield sugar and oxygen.
The carbon dioxide is removed from the plant's environment, then less sugar will be produced.
Photosynthesis is a metabolic process in which plants prepare food in the presence of sunlight, carbon dioxide, and water. The products of photosynthesis are oxygen and sugar molecules.
The carbon dioxide if removed or reduced from the plant's environment, then the plants will be unable to perform photosynthesis properly, and in the limited resources, the products formed will be reduced.
Thus, the correct answer is Option A.
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Dominic and Eva are using the same type of stopwatches to measure the time it takes for a chemical reaction to occur. They each use the same stopwatch to measure the time. These are their results: Person Trial 1 Dominic 78 seconds Eva 81 seconds Why are their results unreliable and can lead to a pseudoscientific claim? Group of answer choices They did not repeat their tests multiple times. They used the same type of stopwatch. They did not change the reactants in their chemical reactions. Only one person should have collected the data. Quiz saved at 10:43am Questions AnsweredQuestion 1 AnsweredQuestion 2 AnsweredQuestion 3 AnsweredQuestion 4 Haven't Answered YetQuestion 5 Time Elapsed: Hide Attempt due: Sep 25 at 11:59pm
Answers
Answer:
The correct answer is - They did not repeat their tests multiple times
Explanation:
If a scientific process or practice which is fundamentally based on believes or idea that has no valid evidence and not proved scientifically, such type scientific process called Pseudoscience or the false science.
In this case, Both Dominic and Eva performed experiments and recorded different time periods by the same stopwatch for the same chemical reaction.
This could result in an error in the data they get and affect the conclusion or results. To avoid this experiment must be repeated to be sure of the result and eliminate errors.
Answer:
They did not repeat their tests multiple times
Explanation:
Which of the following do protists NOT have?
Answers
Answer:
you didnt put the choices, give me the choices and I can tell you
Explanation:
How does the substance in a mudflow form?
Rain mixes with soil.
Large rocks mix with water.
Soil and paper debris are combined.
Loosely connected rocks bind together.
Answers
Answer:
hi the answer is a)rain mixes with soil
have a nice day
Explanation:
Answer:
a Rain mixes with soil.
Explanation:
i took the test
Is using fossil fuels in generating electricity better or using renewable energy? why?
Answers
Answer:
Explanation:
Using renewable energy will always be better than fossil fuels.
This is because fossil fuels need a very long time to renew themselves. And we will run out of them long before they can renew themselves. Besides this, there is a more concerning and very alarming issue with using fossil fuels instead of other energy sources. Global warming and environmental destruction is a very big problem for us in the 21st century. The air is more and more polluted. Temperatures are rising and oceans are rising with them. We will lose the ability to grow food and raise animals in the future if we continue like this.
A ferret's haploid number of chromosomes is 20. How would the number of chromosomes in the ferret's body cells compare to the number of chromosomes in its gametes? (4 points)
A. Its body cells would have 20 chromosomes, and its gametes would have 40 chromosomes.
B. Its body cells and gametes would both have 40 chromosomes.
C. Its body cells and gametes would both have 20 chromosomes.
D. Its body cells would have 40 chromosomes, and its gametes would have 20 chromosomes.
Answers
Answer:d
Explanation:d
Define the following types of sexual reproduction: Binary fission, budding. fragmentation, parthenogenesis
Answers
Answer:
Binary fission-Binary fission, asexual reproduction by a separation of the body into two new bodies. In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA.
Budding-Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. The small bulb-like projection coming out from the yeast cell is called a bud.
Fragmentation-Fragmentation in multicellular organisms is a form of asexual reproduction in which an organism is split into fragments. Each of these fragments develop into matured organism, full grown individuals that are genetically and morphologically identical to their parents.
Parthenogenesis-
Parthenogenesis is a form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Parthenogenesis is derived from the Greek words for “virgin birth,” and several insect species including aphids, bees, and ants are known to reproduce by parthenogenesis.
Explanation:
Hope this helps u
Crown me as brainliest:)
Binary fission is defined as the process of asexual reproduction by a separation of the body into two new bodies. In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA.
What is budding?Budding has been defined as type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. The small bulb-like projection coming out from the yeast cell is called a bud.
Fragmentation has been defined as the in multicellular organisms is a form of asexual reproduction in which an organism is split into fragments. Each of these fragments develop into matured organism, full grown individuals that are genetically and morphologically identical to their parents.
Parthenogenesis has been defined as the form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Parthenogenesis has been derived from the Greek words for pure and several insect species including aphids, bees, and ants are known to reproduce by parthenogenesis.
Therefore, Binary fission is defined as the process of asexual reproduction by a separation of the body into two new bodies.
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Which is the pathway for information through a neuron? dendrite → axon → cell body → axon terminals axon terminals → axon → cell body → dendrite dendrite → cell body → axon → axon terminals cell body → dendrite → axon → axon terminals
Answers
Answer:
dendrite → cell body → axon → axon terminals
Explanation:
The pathway for information through neuron are dendrite → cell body → axon → axon terminals and this because Dendrite is the input zone of nerve cell where neuron can receive information from another nerve cell.
Cell body is the part of the neuron that contain nucleus and it is link to the dendrites and it send signals to the axon.
Axon is a long nerve cell that join the cell body at a terminal called axon hilock and this conduct electrical impulses.
Axon terminal contain synaptic vessicles and it is synapse to other terminal and it is the out put zone of neuron. It is the out put zone where information is expell out
Answer:
Your answer is C!
Explanation:
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In both prokaryotes and eukaryotes, DNA replication happens
Group of answer choices
only to telomeres.
around the histones.
in the nucleus.
before cell division.
Answers
DNA replication happens before cell division in both prokaryotes and eukaryotes.
DNA replication represents a key step in the cycle of every cell, irrespective of whether they are prokaryotes or eukaryotes. The process happens during the interphase of the cell cycle - the S phase to be specific.
After DNA replication, cells generally proceed to the G2 phase where protein is synthesized before entering the mitotic phase of the cell cycle where division takes place.
More on the cell cycle can be found here: https://brainly.com/question/25282664?referrer=searchResults
In both prokaryotes and eukaryotes, DNA replication happens before cell division.
When does the cell divideIn both prokaryotes and eukaryotes, DNA replication occurs before cell division. DNA replication is the process by which a cell duplicates its DNA, creating an identical copy of the genetic material. It is a crucial step in the cell cycle to ensure that each daughter cell receives a complete set of genetic information.
In prokaryotes, which are organisms without a nucleus, DNA replication occurs in the cytoplasm. The circular DNA molecule present in prokaryotes, called the bacterial chromosome, is replicated before the cell divides through a process called binary fission.
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Explain how weathering, erosion, and subduction/volcanic activity help move or transfer carbon around the
geosphere or the geological carbon cycle).
dosent have to be a long answer! thank you
Answers
Answer:
Plankton use carbon to make carbonate (CO3) shells in the ocean. The shells sink and accumulate into layers of sediments and eventually rocks. Rocks are pushed deep into the earth and melt at subduction zones, dissolving the carbon. Volcanic eruptions release carbon dioxide into the atmosphere.
Explanation:
What is different about normal cell division and cancer cell division?
Answers
Answer/Explanation:
Normal cell division is a very controlled process.
There are several checkpoints where the cell ensures the cell is:
receiving the correct signals to dividethat the environmental conditions are favourable for the cell to dividethat there is no damage to the DNA.However, cancerous cells proliferate uncontrollably. This is because they can bypass the checkpoints and divide without the necessary signals. This means cell division keeps occurring even when conditions are unfavourable and the DNA is damaged.
How are Zebra Mussels effecting the fresh water ecosystem?
Answers
Answer:
Zebra mussels negatively impact ecosystems in many ways. They filter out algae that native species need for food and they attach to--and incapacitate--native mussels. Power plants must also spend millions of dollars removing zebra mussels from clogged water intakes.
Explanation:
just did a testtt
multiple choice
click all that apply
Answers
Answer:
change their activity (turning on or off)changing the association with other proteinschanging the localization in the cellExplanation:
Phosphorylation is an example of a post-translational modification of a protein. These modifications are covalently attached to the protein and can have significant effects on its function.
These affects include altering its activity, its binding to other proteins, and where it is found in the cell.
However, post-translational modifications do not affect the amino acid sequence of the protein.
plsss help
Which statement describes the movement of carbon dioxide in the carbon cycle?
A.
The gas enters the hydrosphere as sugar dissolves in water.
B.
The gas enters the cryosphere as ice sheets melt.
C.
The gas leaves the biosphere as animals breathe in air.
D.
The gas leaves the atmosphere as plants use it to make sugar.
Answers
The gas leaves the atmosphere as plants use it to make sugar.
Carbon dioxide is used from the atmosphere and then converted into sugar by plants by the process of photosynthesis.What is carbon cycle?The carbon cycle is way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.Plants use carbon atoms in the form of carbon dioxide that is then converted into sugar.Hence, D option is correct.
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Which of the following describes meiosis?
A. Makes new sex cells, creates 2 daughter cells each with 23 chromosomes
B. Makes new sex cells, creates 4 daughter cells each with 23 chromosomes
C. Makes new body cells, creates 2 daughter cells each with 46 chromosomes
D. Makes new body cells, creates 4 daughter cells each with 46 chromosomes
Answers
Answer:
A should be
Explanation:
i remember all this meiosis stuff from like 8th grade
A factory located near the top of a hill leaks chemicals into the groundwater. How could this leakage affect the groundwater at the bottom of the hill? Could more than one place be affected? Explain.
Answers
Answer:
Explanation: ground water contamination is nearly
always the result of human activity. In
areas where population density is high and human
use of the land is intensive, ground water is especially vulnerable. Virtually any activity whereby
chemicals or wastes may be released to the environment, either intentionally or accidentally, has
the potential to pollute ground water. When
ground water becomes contaminated, it is difficult
and expensive to clean up.
To begin to address pollution prevention or remediation, we must understand how surface waters
and ground waters interrelate.
The water present underneath the Earth exterior between rocks and soil spaces is called groundwater.
The deliberate upsurge of contaminants in the water is called water pollution it modifies the natural rich environment of water microbiota and composition.
Human activities like the release of chemicals from industries and factories in water bodies result in water and soil pollution.
Chemical leakage from factories runoff adds to a water body at the bottom of hills impacting its quality.
The polluted water with chemicals will result in diseases and death of the microbiota of aquatic life and terrestrial organism consuming it.
Chemicals can also affect the soil environment by contaminating it.
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1)) The average depth of a lake is 10 meters. Do you think sunlight acts a limiting factor the same way it does in the ocean? Why or why not?
2)An area with a high population of crayfish in local lakes and rivers has begun experiencing acid rain, rain that has a pH of 3.0 - 4.0. Predict how this rain will impact the crayfish population.
Answers
Answer:
No.
Explanation:
No, the sunlight does not act as a limiting factor the same way it does in the ocean because the lake has lower depth as compared to ocean which is very deep i. e. more than 3000 meters where sunlight does not reach and we know that sunlight is very important for the survival of plants. Sunlight reach in the water about 1000 meters so plants can survive and do photosynthesis due to its low depth.
Acid rain will impact the crayfish population because acid rain decreases the pH of water and this lower pH causes death of the crayfish and also the food of crayfish and thus lower the population of crayfish due to unavailability of food..
