Answer:
An element is a material that consists of a single type of atom. which Each atom type contains the same number of protons. the Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
Explanation:
How is a cat similar to a human?
Answer:
Both are livings and are mammals
Explanation:
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Pls help question is in picture
Answer:
A :)
Explanation:
I had the same question and I got it right
Which type of event is thought to have caused most species on Earth to have become extinct?
A. Air pollution
B. Volcanic eruptions
C. Climate change
D. Human activities
The type of event that is thought to have caused most species on Earth to become extinct is volcanic eruptions. Volcanic eruptions, in particular, can lead to extinction through a process known as volcanic winter. Hence option B is correct.
What is Extinction?Extinction refers to the complete disappearance of a species from the Earth. It can occur naturally or due to human activities. Natural extinction events have occurred throughout Earth's history, such as volcanic eruptions, meteorite impacts, and climate change.
These events can cause significant changes in the environment, including changes in temperature, sea level, and atmospheric composition, which can have a severe impact on the survival of many species.
Volcanic eruptions occur when massive amounts of ash and gases are ejected into the atmosphere, blocking out sunlight and causing a drop in global temperatures.
This can lead to widespread crop failure and loss of habitat, which can lead to the extinction of many plant and animal species. The most well-known example of this is the extinction of the dinosaurs, which is thought to have been caused by a massive asteroid impact that triggered a period of intense volcanic activity.
Hence option B is correct.
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PLS HELP 20 POINTS
describe how each of the following contributes to structural strength.
a) structural forms
b) structural components
c) structural materials
The ability of each component, which when combined, forms any structural system, to bear the loads placed on it. the ability of the a structural system could safely transfer a variety of loads to the ground.
How can structural strength be evaluated?Using a rebound hammer to gauge the concrete's compressive strength is the most typical and ubiquitous method. This bolt is spring-driven and strikes the concrete's surface at a specific speed. Then it more or less vigorously rebounds.
What does Grade 7 science teach about structural strength and stability?Structural strength refers to a structure's capacity to carry both its own weight and also the weight of any additional stresses. It will crumble or collapse if it doesn't. A structure's capacity to withstand potential external forces is known as structural stability.
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Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease
Answer:
Increases.
Explanation:
The pH of the intermembrane space increases as the poisoning of cyanide occurs. After cyanide poisoning, the electron transport chain can stop pumping of electrons into the intermembrane space. The pH of the intermembrane space would increase, the pH gradient would also decreases, and ATP synthesis would stop to occur. The pH of the intermembrane space is neutral i.e. 7 but due to cyanide it move towards basic.
Answer:
Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, the pH of the intermembrane space becomes more basic. The electron transport chain can no longer pump hydrogen ions into the intermembrane space and ATP synthesis stops.
how is population size regulated by abiotic and biotic factors
Population size is influenced by biotic (living) factors like predation and competition, and abiotic (non-living) factors like water and temperature.
Population size is the number of individuals of a species in a given area. It is the result of a balance between births and deaths. Both biotic and abiotic factors play a significant role in regulating population size.Biotic factors, such as predation and disease, can significantly impact population size. Predators consume individuals of the prey species, reducing the population size. Diseases can also have a significant impact on population size by reducing the number of individuals who can reproduce. Competition for resources, such as food and water, can also affect population size.
About the abiotic factors, water availability, temperature, and sunlight affect population size in many ways. For example, many plant species require a specific amount of water to survive. If the water is scarce, the plant population may decline, which, in turn, will affect the herbivore and predator populations that rely on the plants. Temperature and sunlight can also affect the survival and reproduction of many species.
For example, species that are adapted to cooler temperatures may not survive in warmer climates, while species that are adapted to less light may not survive in areas with higher levels of sunlight. Overall, biotic and abiotic factors play an important role in regulating population size.
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What is the purpose of mitosis?
1: to divide the nucleus of somatic cells
2: to divide reproductive cells
3: to merge two cells together
4: to divide the cytoplasm of a cell
Which of these REQUIRES active
transport in order to cross the plasma
membrane?
A. a sodium ion moving AGAINST the concentration gradient
B. a hydrogen molecule moving WITH the concentration
gradient
C. an oxygen molecule moving WITH the concentration
gradient
D. a carbon dioxide molecule moving WITH the concentration
gradient
Answer: I think it might be A. a sodium ion moving AGAINST the concentration gradient
Explanation:
How are chromosomes of an offspring related to that of a parent?
An organism's chromosomes come from the parents. They get some mutations, but they are copies of the parents.
In what stage do cells spend most of their life
Answer:
the interphase stage
info at
https://www.genome.gov/genetics-glossary/Cell-Cycle#:~:text=A%20cell%20spends%20most%20of,mitosis%2C%20and%20completes%20its%20division.
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Are babies from birds ?
Answer:
A bird is a bird, except when it's a nestling, hatchling, or fledgling. As baby birds grow, the specific names that refer to the change.
How do the components of sugar molecules combine to form proteins and other larger carbon based molecules
-Will give brainliest-
Answer:
The sugar molecules thus formed contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins or DNA), used for example to form new cells.
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DNA polymerase is amazing because in addition to building dna, it can also ___________________.
Answer:
one I don't know
Explanation:
I don't know
what types of mutant commonly result from regulatory mutations that increase the rate of transcription of a gene? see section 4.1 (page 107
The types of mutant commonly result from regulatory mutations that increase the rate of transcription of a gene is hypermorphic.
Generally speaking, increasing the rate of transcription causes the generation of extra gene product, which causes extra gene activity.
A mutant could produce an active product with a new and different function or more of the active product (hypermorph) if it has a gain-of-function allele (neo morphs). Last but not least, antimorph alleles, sometimes referred to as dominant negative mutations, have an activity that is dominant and opposing to that of the wild-type product.
As a result, mutant alleles can arise from mutations (changes in a gene's sequence) that do not produce the same quantity or kind of active product as the wild-type allele. One of five categories—amorph, hypomorphic, hypermorph, neomorph, and antimorph—can be applied to any mutant allele.
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planning for ecosystem management is best done on what size of area?
Planning for ecosystem management is best done on a landscape scale, which encompasses a larger area that includes multiple interconnected ecosystems.
Ecosystem management involves understanding and addressing the complex interactions and dynamics within ecosystems. To effectively manage ecosystems, it is important to consider the broader landscape context rather than focusing on individual isolated areas. Therefore, planning for ecosystem management is best done on a landscape scale.
A landscape-scale approach takes into account the interconnectedness of ecosystems within a larger geographical area. This approach recognizes that ecosystems are not isolated entities, but rather influenced by factors such as habitat connectivity, species movements, and ecological processes that transcend individual ecosystems. By considering a larger area, it becomes possible to identify and address ecological patterns and processes that operate at larger scales, such as the movement of species across different habitats, nutrient cycling, and the management of resources.
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Why do you think the cell creates many mitochondria?
Mitochondria is the powerhouse of cell therefore, cell creates many mitochondria.
What is mitochondria?The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular).
Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP). Small chromosomes found in mitochondria are found there.
Organelles that are membrane-bound include mitochondria, however they are membrane-bound with two distinct membranes. And for an intercellular organelle, that's extremely remarkable. Those membranes provide the fundamental function of mitochondria, which is to produce energy.
Therefore, Mitochondria is the powerhouse of cell therefore, cell creates many mitochondria.
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Uranium atoms are split to create a tremendous amount of energy in a _____ power plant. Help now i put you brainlest
Answer:
nuclear
Explanation:
uranium is used in nuclear powerplant
other powerplant don't use uranium, they use wood(biomass) , geothermal energy(geothermal) , and water(hydroelectric) .
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How does addition of small amount of water under moist conditions affect the potential for a slump to form
Answer:
Explanation:
Adding water increases slope instability. It lubricates rock fragments so that they slide down slope more easily. Mass wasting occurs more readily in rainy seasons for this reason. It turns out that a small amount of water in the soil can aid slope stability because of increased surface tension.
Answer:
Adding water increases slope instability. It lubricates rock fragments so that they slide down slope more easily. Mass wasting occurs more readily in rainy seasons for this reason. It turns out that a small amount of water in the soil can aid slope stability because of increased surface tension.
Kinetic energy depends on _____. Question 2 options: Position and height Heat and pressure Mass and speed Density and volume
Answer: mass and speed
Explanation:
kenetic energy is energy when moving
Which tissue found in the centre of bones produces blood cells?
Which occurrences do the greenhouse effect contribute to?
Choose exactly 3 answers that are correct.
O strange weather patterns
O higher ocean water levels
O global warming
O greater fossil fuel burning
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Answer: The answer is strange water patterns, higher ocean water levels, and global warming
Explanation: I took the test and it was right
Hope this helps
4
Which of the following best summarizes the effects that plants have on the global carbon
cycle? *
(1 Point)
Plants perform cell respiration, removing carbon from the atmosphere.
Plants perform photosynthesis, adding carbon to the atmosphere.
Plants perform both photosynthesis and cell respiration and cause a net decrease of carbon in the atmosphere.
Plants perform both photosynthesis and cell respiration and cause a net increase of carbon in the atmosphere.
5
Primary producers are organisms that
Answer:
Plants perform both photosynthesis and cell respiration and cause a net decrease of carbon in the atmosphere.
Explanation:
Plants are living organisms capable of performing a process called photosynthesis, which they use to synthesize their food (sugar). They use carbon in form of carbon dioxide, which they absorb from the atmosphere via their stomata.
However, plants like every other living organism, also perform cellular respiration. Cellular respiration releases carbon in form of carbon dioxide into the atmosphere. Plants use more carbon dioxide than they release into the atmosphere, hence, they contribute to global carbon cycle perform both photosynthesis and cell respiration and cause a net decrease of carbon in the atmosphere.
what is an environmental concern regarding genetically modified plants that are resistant to herbicides and the other similar plants located near them?
Answer:
Biodiversity Loss
Farmers often have problems with soil erosion when they clear their fields after the growing session. So I’m sorry all types are more prone to version than others. Based on the data you gathered in this experiment, which serial types do you think are the most easily eroded, soils with a higher sand content or soils with high clay contents
Serial types both sand and clay soils are the most easily eroded, soils with a higher sand content or soils with high clay contents
Sand soils are generally characterized by larger particle size and lower cohesion, which can make them more prone to erosion by wind or water. On the other hand, clay soils are characterized by smaller particle size and higher cohesion, which can make them less prone to erosion by water but more prone to erosion by wind when they are dry and exposed.
The experiment data would need to include specific measurements of erosion rates, sediment loss, runoff, and other relevant parameters for both sand and clay soils under comparable conditions to make a meaningful comparison. Additionally, the experiment would need to consider other factors such as slope gradient, vegetation cover, and rainfall intensity, as these can also significantly affect soil erosion.
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the ability to use the body skillfully and handle objects adroitly; hands-on people w/ good tactile sensitivity is called ______
The ability to use the body skillfully and handle objects adroitly; hands-on people with good tactile sensitivity is called kinesthetic intelligence.
What is kinesthetic intelligence?Kinesthetic intelligence refers to the ability to use your body skillfully and adroitly. Kinesthetic intelligence, also known as body-kinesthetic intelligence, is one of nine types of intelligence defined in Howard Gardner's theory of multiple intelligences. Kinesthetic intelligence is characterized by a high degree of body awareness, physical control, and balance, as well as a keen sense of timing, precision, and coordination.
Kinesthetic intelligence is the ability to understand and use the body to move around effectively. This type of intelligence is important for professions such as sports, dance, surgery, and sculpture. People with high kinesthetic intelligence are typically good at physical activities and excel at activities that require hand-eye coordination, such as playing musical instruments, sewing, cooking, or painting.
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explain one way viruses can be benefits
Viruses do not have cells and therefore need a host cell to carry out their metabolism and reproduce.
While viruses are responsible for many diseases, they are also used in ways that benefit us, humans.
One of the ways that viruses can be beneficial is when they are used to make vaccines. For example, Coronavac's COVID vaccine uses an inactivated virus to motivate the immune system.
Which kind of erosion results in sand dunes?
A. Chemical
B. Ice
C. Wind
D. Stream
Answer:
It would be wind erosion but that's not on there so it might be wind
Explanation:
Drew is showing his friends a device that he claims is able to trap 90 percent of the pollutants in automobile exhaust. To build the device, Drew outfitted a vacuum cleaner with a specially designed air filter, modified the vacuum cleaner to allow it to receive electricity from a gasoline-powered engine, and attached a rubber fitting and adjustable clamp to the end of the vacuum hose. Which of Drew's modifications to the vacuum cleaner could potentially reduce the effectiveness of his device? A. attaching a rubber fitting and adjustable clamp to the hose B. outfitting it with a specially designed air filter C. allowing it to receive electricity from gasoline-powered engines D. all of these
Answer:
alllowing it to receive electricity from gasoline-powered engines
Explanation:
i guessed and got it wrong to see the answer... just for you guys
Drew's modifications to the vacuum cleaner to receive electricity from the gasoline-powered engine will reduce the effectiveness of his device. The correct option is C.
Thus, the modification of the vacuum cleaner to receive electricity from the gasoline-powered engine suggests that the device is recycling the same pollutants it was designed to trap.
This will make the device ineffective in reducing the number of pollutants in the air. If the vacuum cleaner receives electricity from the same engine that produces the automobile exhaust, then it cannot be removing the pollutants from the air. Instead, it is simply recycling the same air and pollutants, which means that the effectiveness of the device is compromised.
However, the rubber fitting and adjustable clamp allow the hose of the vacuum cleaner to attach securely to the automobile exhaust pipe, and the specially designed air filter is used to trap the pollutants.
Thus, the ideal selection is option C.
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What is the relationship between an individual and a community?
What characteristics define a population?
Why is the distinction between a community and an ecosystem important to ecologists?
Review
Define species.
What is an ecosystem?
Define population. How is a population different from a community?
Answer:
A population is a group of organisms belonging to the same species that live in the same area and interact with one another. A community is all of the populations of different species that live in the same area and interact with one another.
Both a plant and a fungus are composed of cells. According to the cell theory, the cells of
A a fungus can take in nutrients but are unable to produce new cells.
B
both organisms are able take in nutrients, and both can produce new cells.
C
a plant can produce new cells but are unable to take in nutrients,
D
both organisms are able to take in nutrients, but only plants can produce new cells.
Answer:
A
Explanation:
New cells can only come from already existing cells, therefore neither plants nor fungi can create new cells
According to the cell theory, the cells of both plant and fungal organisms are able take in nutrients, and both can produce new cells. Thus option B is correct.
What are the difference between plant cell and fungal cell ?Plants are autotrophic eukaryotic organism with different parts like root, stem, leaves etc. Fungi are the heterotrophic eukaryotic organism with undifferentiated body.
plant cell have cell wall made up of cellulose while fungal cell wall are septate or aseptate composed up chitin.
Plant cell are uninucleate but fungal cell are both uninucleate or multinucleated.
Chloroplast present in plant cell but absent in fungal cell.
Plant cell membrane have phytosterol where as fungal cell membrane have ergosterol.
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