Answer:
On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
Which of the following is the observed result of aquatic species exposed to a toxin?
I. Developmental dysfunction
II. Gender imbalances
III. Increased reproduction rates
I, II, and III
I and II
II and III
I only
The release of toxins such as heavy metals into the water bodies has been deeply frowned at .This is because toxins usually have a negative effect on aquatic species. The negative effects include:
Developmental dysfunctionGender imbalancesToxins also gives rise to developmental dysfunction in the animals . The toxins ensures that there is a shortage by interfering/reacting with the nutrient needed for the growth of these organisms.
The issue of gender imbalance is also true as some toxins causes water bodies to be warmer which favors the presence of female aquatic species such as reef fish.
Toxins causes aquatic bodies to be short of oxygen supply as the elements or compounds released vie for oxygen with the animals which may lead to less reproduction rates and death in severe occasions.
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What would be a good positive control for this experiment?
Remember that a positive control should show a change during the experiment.
a) Expose a sample to visible light
b) Keep a sample in the dark
c) Add a molecule that acts as reducing agent
d) Open the lid of the cuvette
Answer: A) Expose a sample to visible light.
Explanation: It is because in this manner the sample can be exposed to the full spectrum of light. By doing this the chlorophyll in the positive control is active and so is the DCPIP and in this, it should be reduced by the photosystem.
This illustration shows a kind of animal that is a free-living organism.
What is the common name of this organism?
planarian
tapeworm
fluke
amoeba
Answer: fluke
Explanation:
describe the factors that influence the declining of Amphibians population
Answer:
Hypothesized causes for the declines include habitat destruction (the most obvious cause), climate change, pathogens, introduced exotic species, pollution, and increased UV radiation. These agents may act alone or in combination to contribute to the decline of amphibian populations.
Explanation:
I think this is the answer
Hope it helps you
Answer:
A few causes for the declines in the Amphibian population include habitat destruction, climate change, introduced exotic species, germs or pathogens, pollution increases, and increased UV radiation. These things may act alone or in combination to contribute to the decline of amphibian populations.
Here are 9 factors that have impacted the amphibian population
Insects are attracted to lights making them scarcer within the amphibian habitats.
Habitat modification.
Habitat fragmentation.
Pollution and chemical contaminants.
Ozone depletion, ultraviolet radiation and cloud cover.
Disease.
Introduced predators.
Increased noise levels.
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Why is mitosis important in living organisms
Answer:
La célula es la unidad anatómica y fisiológica de todos los seres vivos. Lleva un proceso de división celular denominado mitosis en donde a partir de una célula madre se generan dos células hijas exactamente iguales. ... La mitosis en seres pluricelulares tiene la función de crecimiento y reparación.
Explanation:
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ATP hydrolysis is needed for active transport. Which of the following requires the transfer of the terminal phosphate group of ATP?
Aquaporins
Carrier proteins
Channel proteins
Sodium potassium pump
Answer:
I would think Channel proteins but I could be wrong
The sodium potassium pump is the only one of the options that requires the transfer of the terminal phosphate group of ATP.
Active transport is the process of moving molecules across a cell membrane against their concentration gradient. This requires energy, which is provided by ATP hydrolysis.
Aquaporins are water channels that allow water to move through the cell membrane without requiring energy. Carrier proteins and channel proteins are also involved in passive transport, which does not require energy.
The sodium potassium pump is an example of active transport. It uses the energy from ATP hydrolysis to move sodium ions out of the cell and potassium ions into the cell. This creates an electrochemical gradient, which drives the movement of other ions and molecules across the cell membrane.
The sodium potassium pump is essential for maintaining the electrical potential of the cell membrane. It is also involved in the transport of nutrients and waste products into and out of the cell.
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2. DNA can be found in (select all that apply):
bacteria
o fungi
o protists
o plants
o animals
Answer:
Explanation:
Plantae, Animalia, Protista,Fungi
Question of the day, who ever answers it first gets brainliest:
Do animals have a cell wall?
Answer:
yes they do
Explanation:
Answer:
No, animals do not have a cell wall!⊂(･ω･*⊂)
Brainlest to correct answer!!!
Answer:
Photosynthesis
Explanation:
I just learned that today
The heart is positioned in front of the vertebral column and behind the sternum
Answer:
yes it is located in front of the vertebral column but i'm not sure if it's behind the setrum
Explanation:
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main disadvantages of rejoining Paris agreement
Your answer is → There are no repercussions for countries who fail to meet their targets. Without legal ramifications, some countries see their pledges as meaningless, and, therefore, do not prioritise a reduction in carbon emissions
Which of the following factors was likely the greatest
contributing factor to the 1916 influenza outbreak?
Answer\
poor sewage systems
Explanation:
examples of tissues
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the path of a nerve signal involved in kicking a ball .When and where do you motor or sensory nerves fire?
Answer:
Explanation:
the path of a nerve signal involved in kicking a ball .When and where do you motor or sensory nerves fire?
The nervous system is made up of two parts. Each part contains billions of neurons. The first part is the central nervous system. It contains the brain and spinal cord, which is a fibrous, ropelike structure that runs through the spinal column down the middle of the back.
The other part is the peripheral nervous system. It consists of thousands of nerves that connect the spinal cord to muscles and sensory receptors. The peripheral nervous system is responsible for reflexes, which help the body avoid serious injury. It's also responsible for the fight or flight response that helps protect you when you feel stress or danger.
Let's examine an individual neuron up close.
Here is a peripheral nerve. Each one of the nerve bundles, or fascicles, contains hundreds of individual nerve.
Here's an individual neuron, with its dendrites, axon, and cell body. The dendrites are tree-like structures. Their job is to receive signals from other neurons and from special sensory cells that tell us about our surroundings.
The cell body is the headquarters of the neuron. It contains the cell's DNA. The axon transmits signals away from the cell body to other neurons. Many neurons are insulated like pieces of electrical wire. The insulation protects them and allows their signals to move faster along the axon. Without it, signals from the brain might never reach muscle groups in the limbs.
Motor neurons are responsible for voluntary control of the muscles all over the body. The operation of the nervous system depends on how well neurons communicate. For an electrical signal to travel between two neurons, it must first be converted to a chemical signal. Then it crosses a space about a millionth of an inch wide. The space is called a synapse. The chemical signal is called a neurotransmitter.
Neurotransmitters allow the billions of neurons in the nervous system to communicate with one another. That's what makes the nervous system the body's master communicator.
Which of the following pairs of organisms
probably belong to the same trophic level?
a. humans and bears
b. bears and deer
C. humans and cows
d. both (a) and (c)
Humans and bears probably belong to the same trophic level.
What is the tropic level in ecology?
The tropic level is the position of an organism in the food chain or food in the ecosystem.
There are 4 trophic levels including producers herbivores (primary consumers) carnivores (secondary consumers)predators (tertiary consumers).the organism of one tropic level cal is the part of another chain at a different levels.According to the question:-
a. humans and bears (both are carnivorous and secondary consumers)
b. bears and deer bear is carnivorous and deer is herbivorous)
C. humans and cows (human omnivorous and cow herbivorous.
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This is the equation for the thermite reaction:
Fe2O3 + 2Al = Al2O3 + 2Fe
You know the charge on the Al and O ions because you know how many electrons each atoms "wants" to give or take by looking at their position on the periodic table (and because it was listed on the cards). Fe is element 26, iron, in the middle of the periodic table. Since it forms Fe2
2
O3
3
, what charge does the Fe ion have?
The charge of Fe in Fe₂O₃ is +3.
Let's consider the equation for the thermite reaction:
Fe₂O₃ + 2 Al ⇒ Al₂O₃ + 2 Fe
One of the reactants is ferric oxide, we can calculate the charge of Fe in Fe₂O₃ considering that:
The sum of the charges of the atoms is equal to the charge of the compound.The charge of a neutral compound is 0.The charge of O in oxides is -2.The charge of Fe in Fe₂O₃ is:
[tex]2Fe+3O = 0\\2Fe+3(-2)= 0\\Fe=+3[/tex]
The charge of Fe in Fe₂O₃ is +3.
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Would pressure be greater or smaller if you were to go scuba diving? Explain
It depends on how deep you go, the deeper you go the greater the pressure gets, ._.
If you are scuba diving in a coral reef there is little to no pressure since you are close to the surface, you are at surface floor
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Cancer occurs when signals for ________ are blocked or misinterpreted. A) apoptosis B) endocytosis C) exocytosis D) mitosis
Answer:
Apoptosis
Explanation:
its also in the comments, hope this helped!
Answer the following questions.
n 1) Plants Impact many things that we take for granted. Our lives are in many ways
Intertwined with theirs. Think about it. Which of the following listed daily events
demonstrates the importance of plants in our daily life? Select all that apply.
having a sandwich for lunch
sitting at wooden desks
I picking wildflowers
eating a favorite breakfast cereal
throwing a granite rock
asking permission to go to recess.
reading paper books and magazines
sleeping in beds under cotton sheets
Answer: reading paper books and magazines, sleeping in beds under cotton sheets, having a sandwich for lunch , sitting at wooden desks , I picking wildflowers , eating a favorite breakfast cereal.
Explanation: These are all correct because each has to deal with plants. For example, reading the paper books, sleeping in the bed and sitting at the wooden desk all have to due with the products that come from plants. Paper, cotton, and wood are all grown from plants and turned into resources. Next picking flowers, eating foods are also direct examples of how plants help us. Picking flowers that come directly from plants. Then eating food that is grown from plants shows that it is directly plants providing for humans.
what is cellular respiration
Answer: Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products.
Explanation:
What is the purpose of technology?
A. Creating political pressure
B. Finding new scientific discoveries
C. Solving problems
D. Regulating the government
The purpose of technology is to solve problems and improve various aspects of human life. Option C.
The purpose of technology is multifaceted and encompasses various objectives.
However, at its core, technology is developed to address challenges, solve problems, and enhance different facets of human existence. Whether it is improving efficiency, increasing productivity, advancing communication, or creating innovative solutions, technology aims to provide practical and tangible benefits.
Technological advancements enable us to overcome obstacles and improve the quality of life.
From medical technologies that diagnose and treat diseases to renewable energy sources that combat climate change, technology plays a pivotal role in finding solutions to complex problems. It empowers us to tackle issues in areas such as healthcare, transportation, agriculture, education, and environmental sustainability.
Furthermore, technology drives scientific discoveries and innovation. It provides scientists with tools and methodologies to conduct research, gather data, and analyze information, leading to new insights and understandings of the world.
Technological advancements in fields like computing, artificial intelligence, and genetic engineering have opened up new frontiers for exploration and scientific breakthroughs.
While technology can be used for political advocacy, social mobilization, and improving governance processes, these are additional applications rather than its fundamental purpose.
The primary aim of technology is to address challenges, solve problems, and enhance human experiences in various domains. It serves as a catalyst for progress and development, shaping the way we live, work, communicate, and interact with the world around us. SO Option C is correct.
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Respond to the following based on your reading.
1. Name the three common states of matter on earth.
2. Which states of matter have a set shape? Explain why this is, based on the
а
animations you observed for the different states of matter.
3. Which states of matter have a set volume? Explain why this is, based on the
animations you observed for the different states of matter.
4. The boiling point is the temperature at which a liquid substance will turn to
vapor, and also the temperature at which vapor will condense to a liquid. The
a
boiling point of ethanol is about 80°C, and the boiling point of water is about
100°C.
a. What can you conclude about the intermolecular forces in water and
ethanol?
b. Do you predict water freezes at a higher temperature or at a lower
temperature than ethanol?
5. Recall how different Van der Waals attractions and how ionic charges changed
the movement of atoms in the animation. Do you think that Van der Waals
attractions or ionic charges are stronger? Why?
Answer:
Most people are familiar with three states of matter – solids, liquids and gases – but there are two more that are less commonly known but just as important – plasmas and Bose-Einstein condensates. They are very compressible (particles are widely spaced). There are three states of matter: solid; liquid and gas. They have different properties, which can be explained by looking at the arrangement of their particles.
atoms
An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton's Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.
What are the 8 states of matter?
Bose–Einstein condensate.
Fermionic condensate.
Degenerate matter.
Quantum Hall.
Rydberg matter.
Rydberg polaron.
Strange matter.
Superfluid
Answer:
1. Liquid, Solid, Gas
2. Solid has a set shape. Solid can move but gas and liquid is more flexible than solid.
3. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid are flexible.
4. A. The stronger the intermolecular forces in a liquid the higher the boiling point. Therefore, water has a stronger intermolecular force than ethanol.
B. Water molecules are more attracted to each other than ethanol (alcohol) molecules, because water has more hydrogen atoms bonded to oxygen. ... So, that's why alcohol has a much lower freezing point
5. Ionic charges are stronger.
Covalent bonds are known to have the strongest and most stable bonds since they go deep and into the inter-molecular state. A diamond is an example of a compound with this characteristic bond.
Ionic bonds are the next strongest molecular bond following covalent bonds. This is due to the protons and electrons causing an electro-static force which results to the strong bonds. An example would be Sodium Chloride (NaCl), which when separated is Na⁺ and Cl⁻.
Van der Waals forces, also known as Dispersion forces, are the weakest type of molecular bonds. They are only formed through residual molecular attractions when molecules pass by each other. It doesn't even last long due to the uneven electron dispersion. It can be made stronger by adding more electrons in the molecule. This kind of molecular bonds appear in non-polar molecules such as carbon dioxide.
Explanation:
These are the answers based on the reading material provided by James Madison High School
Which of the following household products is potentially hazardous ?
a bleach
b. solvents
c. paint
d. all of the above
Please select the best answer from the choices provided
А
B
С
D
Answer:
D
Explanation:
Answer:
a
Explanation:
bleach can cause many hazardous circumstances like bleach in the eyes and stain on clothes and it slowly rots away your skin
If you reduced three sponge species down to individual cells using a very fine cloth and mixed them together, what would you predict would be the outcome after a period of time? Make sure to identify why, and what proteins are likely responsible.
After a few hours, the cells of each sponge would re-aggregate and form three new sponges.
We can reach this answer because:
The sponge is a multicellular organism with little cell differentiation.The surface of sponge cells has a group of glycoproteins, which allow communication between all the cells in a sponge.These proteins are transmembrane receptors, which emit signals responsible for the cell adhesion process.The cell adhesion process allows the cells in a sponge to regroup if they are separated.In this case, if three sponges had their composition sieved and mixed, the glycoproteins of their cells would allow each sponge to be remade, as there would be communication and a regrouping of the cells of each sponge.
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Give three examples of the color changes that can be seen with pH indicators.
Answer:
IndicatorLow pH colorHigh pH colorBromocresol greenyellowblueMethyl redredyellowMethyl purplepurplegreenAzolitmin (litmus)redblue
how are active faults and inactive faults similar
Answer:
Active faults are structure along which we expect displacement to occur. By definition, since a shallow earthquake is a process that produces displacement across a fault, all shallow earthquakes occur on active faults. Inactive faults are structures that we can identify, but which do no have earthquakes.
Explanation:
Where do plants get water from ?
Answer:
Rain
Explanation:
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Using context clues, what does “ferrying its newly-gained energy with it “ mean when talking about convection?
The term "ferrying its newly-gained energy with it" means that the fluid carries the energy it acquired as it rises during convection.
Convection is a mode of heat transfer in which energy is transferred by the bulk movement of particles from one point to another. During convection, a fluid is heated and its particles acquire energy, These energetic particles now move upwards and are replaced by less dense fluid at a lower energy.
The term ferrying its newly-gained energy with it, implies that the heated particles carry the energy they have gained with them as they rise during convection.
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State six systems work human body
Answer:
circulatory, respiratory, muscular, digestive, integumentary, endocrine, reproductive, and nervous systems.
Explanation:
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1. Which of the following scenarios would not prompt the cell to start dividing? A. a bone elongating during puberty B. tissue healing after an injury C. stretching of a cell to allow for more fat storage
Answer:
I think the answer is C
Explanation:
The scenario that would not prompt the cell to start dividing is the stretching of a cell to allow for more fat storage.
What do you mean by Cell division?Cell division may be defined as the process by which a parent cell divides into two or more daughter cells.
The stretching of a cell to allow for more fat storage is usually done by the process of cell growth, but not by the process of cell division.
Therefore, the scenario that would not prompt the cell to start dividing is the stretching of a cell to allow for more fat storage.
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