Answer:
Confined aquifers are aquifers that are overlain by a confining layer, often made up of clay. The confining layer might offer some protection from surface contamination.
Explanation:
answer one of my questions :p
what 2 things make a ionic bond????
Elements that are metal and elements that are nonmetal together creates an ionic bond. Explanation:
Answer:
Krypton and Lithium are most likely to form an Ionic Bond
Explanation:
For a single Bond it is possible to define an Ionic Bond when the electronegativity difference between the two atoms of the bond is greater than 2,0.
when does meiosis occur?
Answer:
it takes place after puberty. Produces haploid sperm cells with 23 chromosomes. A single diploid cell yields four haploid sperm cells through meiosis
can the behavior of a material of substance be considered a physical property
Answer:
Physical properties are those attributes of a material that can be observed and/or measured without changing the composition or identity of that material. Examples of such properties include color, smell, freezing point, melting point, viscosity, opacity. density, solubility, polarity, texture and many others.
Now if the behavior of a material is inherent to that material, and is an attribute that can be observed or measured without effecting any chemical change in that material, then it may very well be considered a physical property of that material.
For example if a particular element or material melts at 40 degrees centigrade, this is a behavior of that element and is considered a physical attribute.
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Explanation:
Using Newton's Second Law of Motion, explain how the skeletal-muscular system works to lift lighter and heavier objects.
Answer:
the muscular system provides force to lift the mass of the objects. The heavier objects require more force than light objects.
Explanation:
Which statement describes competition in an environment
Answer:
its c i did the test a day ogo :)
Explanation:
The Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent.
What is the probability the offspring will be heterozygous for this trait
PLEASE HELP NOWWWW
Answer: 50% chance (2/4)
Explanation:
Answer:
50% probability
Referring to the reference periodic table, what do the elements fluorine, chlorine, and bromine have in
common?
All are located in the same period.
All have metallic properties.
All are halogens, so they are not very chemically active.
All have the same number of valence electrons.
Answer:
D, All have the same number of valence electrons.
Explanation:
they are located in the same group so they should have the same number of valence electrons
All have the same number of valence electrons fluorine, chlorine, and bromine have in common.
What is Periodic table?All identified chemical elements are arranged in rows (referred to as periods) and columns (referred to as groups) in the periodic table of chemical elements, also known as the periodic table, in ascending order of atomic number.
The periodic table is used by scientists to quickly refer to details about an element, such as its atomic mass and chemical symbol. Scientists can identify trends in element properties like electronegativity, ionization energy, and atomic radius thanks to the periodic table's arrangement.
Numerous scientists worked on the issue of grouping the elements, but Dmitri Mendeleev is generally recognized as the periodic table's creator.
Therefore, All have the same number of valence electrons fluorine, chlorine, and bromine have in common.
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why are traits that are helpful in one environment be harmful in another?
Traits that are helpful in one environment can be harmful in another because evolution is a process of adaptation to specific environmental conditions. Organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
What is evolution?Evolution is a slow and gradual process that occurs over many generations. It involves changes in the genetic makeup of populations of organisms over time. These changes are brought about by natural selection, which is the process by which certain traits become more or less common in a population based on their effects on survival and reproduction. Natural selection acts on the variation that exists within a population, and this variation is often due to genetic differences between individuals.
Hence, traits that are helpful in one environment can be harmful in another because evolution is a process of adaptation to specific environmental conditions. Organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
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Traits can be advantageous or disadvantageous based on the specific environment they exist in. This is a result of adaptation and evolution, influenced by factors like food availability and mutation which can have different impacts in different conditions. Overall, the concept of 'survival of the fittest' still holds, meaning that individuals who are most adapted to their environment are most likely to survive.
Explanation:Traits which are advantageous in one environment can be disadvantageous in another due to the nature of adaptation and evolution. Traits are often the result of evolutionary pressures and adapt a species to specific environmental conditions. For instance, consider the case of finch beaks. The variations in their beaks enabled adaptation to food availability in specific environments, with large bills being advantageous in one environment and disadvantageous in another. *
Mutations can also play a role in how helpful or harmful a trait may be. Some mutations are helpful, improving an individual's survival and reproduction chances in certain environments, while they can be harmful or neutral in another. An example is the mutation for black colouration in peppered moths - it increased their survival during the Industrial Revolution due to the soot-blackened cities, but in areas that were not industrialized, the mutation may have made them more conspicuous to predators.
In conclusion, whether a trait is beneficial or harmful can greatly depend on the environmental context, reinforcing the concept of survival of the fittest - those individuals most adapted to their environment are more likely to survive and pass their traits to the next generation
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How can substances be transported across a membrane against their concentration gradient?
Answer: To move substances against a concentration or electrochemical gradient, a cell must use energy.
Explanation:
This occurs because During active transport, substances move against the concentration gradient from an area of low concentration to an area of high concentration which is a “active” progress which requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Substances can be moved across a membrane against their concentration gradient using active transport. It requires ATP energy and uses proteins in the cell membrane as pumps.
Explanation:Substances can be transported across a membrane against their concentration gradient through a process called active transport. In this process, substances move from an area of low concentration to an area of high concentration, which is against the natural diffusion process. Some substances cannot pass through the cell membrane passively and for these, the cell uses active transport which requires energy, usually in the form of ATP (Adenosine Triphosphate). Proteins in the cell membrane, called transport proteins or pumps, are utilized to push these materials against their gradient.
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Deep ocean currents are a result of:
A) Density
B) Earth’s Rotation
C) Global Wind Patterns
D) All of the above
With examples, discuss the role of sensory memory on long term recall
Explanation:
How Does Sensory Memory Work?
During every moment of your existence, your senses are constantly taking in an enormous amount of information about what you see, feel, smell, hear, and taste. While this information is important, there is simply no way to remember each and every detail about what you experience at every moment. Instead, your sensory memory creates something of a quick "snapshot" of the world around you, allowing you to briefly focus your attention on relevant details.
Types of Sensory Memory
Experts also believe that different senses have different types of sensory memory. The different types of sensory memory have also been shown to have slightly different durations.
Iconic memory, also known as visual sensory memory, involves a very brief image. This type of sensory memory typically lasts for about one-quarter to one-half of a second.
Echoic memory, also known as auditory sensory memory, involves a very brief memory of sound a bit like an echo. This type of sensory memory can last for up to three to four seconds.
Haptic memory, also known as tactile memory, involves the very brief memory of a touch. This type of sensory memory lasts for approximately two seconds.
Final answer:
Sensory memory acts as the initial filtering stage in the memory process, briefly holding sensory information such as sights and sounds. This information will only transfer to long-term recall if deemed valuable and given attention, enabling it to move through to short-term and then long-term memory; examples include the use of visual studies aids to enhance recall during tests.
Explanation:
The role of sensory memory in long-term recall can be understood by examining its position in the memory process. Sensory memory is the earliest stage of memory, where sensory information is stored for a very brief period. For example, the sight of a vivid image or the sound of a unique melody might enter sensory memory but will quickly fade unless attended to. When we deem sensory information as valuable, we consciously direct our attention to it, thereby transferring it into short-term memory (STM), where it is temporarily held.
To form long-term memory, the information must be thoughtfully processed. An example of sensory memory influencing long-term recall is when a student intensely studies an image related to a concept; the vividness of the image may help in transferring the information from sensory memory to long-term memory, where it can be retrieved later. This is why visual aids are often useful in educational settings. Long-term memories can be retrieved through recall, recognition, and relearning. For instance, studying with diagrams can help you easily recall the information during a test, or recognize the correct answer when seeing the diagram on a multiple-choice exam.
which is the best definition for the underlined word _transformation ______________
Answer:
The genetic alteration of a cell resulting from the direct intake, placement and expression of exogenous genetic material from its surroundings and taken in through the cell membrane
Explanation:
Answer:
a thorough or dramatic change in form or appearance
Explanation:
What regulates the temperatures on Earth and protects it from harmful UV rays and meteors?
A. Earths magnetic field
B.Earths atmosphere
C. Earths moon
D.Earths ocean's
Answer: B. Earth's atmosphere
Explanation: You may think that it's the magnetic field because it talks about harmful UV rays. The field doesn't stop them. It only stops solar wind. The atmosphere scatters the UV rays to protect us. It also burns up meteors that attempt to hit Earth.
[ B. Earths atmosphere. ]
The atmosphere regulates the temperatures on Earth and protects it from harmful UV rays and meteors. In the stratosphere, it is heated by the ultraviolet radiation of the sun. If it weren't for the stratosphere, the rays from the sun would be deadly. In the troposphere, all of Earths weather occurs in it. The air in the troposphere is the densest as it contains 3/4 of all mass in the entire atmosphere.
Best of Luck!
Each year as the weather gets cold, gray whales swim over 10,000 miles from arctic waters south to coastal areas of northern Mexico. After their young are born, they return to the Arctic.
The whales are responding to an stimulus_______.
This response is an example of _______.
Answer:
External, Migration
Explanation:
just trust me
Answer:
external, migration
Explanation:
Just answered it.
Structures for protection to the environment is an example of
Answer: a protective wall and a dam
Explanation:
5 things I learned from the amoeba sisters biological levels in biology
Answer:
zenuts
Explanation:
,prokaryotes and eukaryotes, all living things have cells,some thigs that grow are not living there are two types of cells animal cells and plant cells
____________________ is a relationship between two organisms in which ONE species benefits by hunting, killing and eating the other organism.
Which of the following accurately describes one of the possible steps in testing soil PH?
A.) Water and baking soda are added to the soil
B.) A blend of baking soda and vinegar are added to the soil.
C.) The soil is washed and drained thoroughly before testing.
D.) The soll is dried completely.
The correct step for testing soil pH is to wash and drain the soil thoroughly before testing. Baking soda and vinegar, which react with each other, are not used for pH testing. The pH level indicates the soil's acidity or basicity, determined by the concentration of hydrogen ions.
C is correct
Explanation:The question at hand involves the process of determining the pH level of soil, which is a measure of its acidity or basicity. One of the possible steps in testing soil pH could involve adding substances to the soil and observing the reaction. However, when mixing vinegar, which contains acetic acid, and baking soda, which is a base, you would witness a reaction that would not be helpful for soil pH testing, as it would create a new substance rather than help determine the pH of the soil.
Instead, a proper step for testing soil pH would be to wash and drain the soil thoroughly before testing to remove any contaminants that may affect the pH reading. After cleaning, one would typically use a pH testing tool such as litmus paper or a digital pH meter to measure the soil's acidity or basicity. The presence of high concentrations of hydrogen ions would indicate an acidic pH (below 7), while low concentrations would indicate a basic pH (above 7).
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Final answer:
The correct step in soil pH testing is option C) the soil is washed and drained thoroughly before testing; adding substances like baking soda or vinegar, which alter the soil's pH, is not part of the correct procedure.
Explanation:
The correct step in testing soil pH is C) The soil is washed and drained thoroughly before testing. This is because the pH measurement requires a sample where the soil particles are in suspension with a liquid, typically water, so that the glass electrode can measure the hydrogen ion activity in the solution. The soil should not be dried completely as it needs to be in a state that allows for hydrogen ion exchange. Adding water to the soil makes a water-soil suspension which can then be tested for pH. Adding substances like baking soda (a base) or vinegar (an acid) to the soil would alter its pH and thus would not be part of a proper soil pH testing procedure.
If vinegar were added to baking soda, there would be a chemical reaction that produces carbon dioxide gas and water, resulting in a solution with a neutral pH of around 7. However, this reaction is not relevant to the proper method of soil pH testing, which does not involve baking soda or vinegar.
How are pollen and egg cells different than most other plant cells?
Answer:
Fertilization, which is the union of sperm and egg, occurs deep within the flower after pollination. When a pollen grain lands on the stigma, it generates a tiny tube tipped with sperm. The tube fits into a conduit called a style in the female pistil.
Explanation:
Pollen grains and egg cells differ from most plant cells by being specialized haploid gametophytes with features that ensure successful fertilization and seed formation for plant reproduction.
Pollen grains and egg cells, which represent the male and female gametophytes respectively, differ from most other plant cells in several ways. Pollen grains are male gametophytes containing a few cells and are specialized for transport to female reproductive organs. This is possible due to features like a protective coat that prevents desiccation, and, in some cases, structures such as air sacs that facilitate their movement towards the ovule. The whole structure is adapted to ensure successful fertilization without dependence on water. Egg cells are found within the female gametophyte, which also contains additional cell types like the synergids and antipodal cells.
The key characteristic of pollen and egg cells is their ploidy level: they are haploid (1n), containing a single set of chromosomes, unlike the diploid (2n) cells found in most of the plant body (sporophyte generation). This difference is crucial for sexual reproduction, as the fusion of a pollen grain’s sperm cell with an egg cell will result in a diploid zygote, from which a new sporophyte will develop. Seed formation then follows, encapsulating the zygote to provide protection, nourishment, and a mechanism for dormancy until growth conditions are optimal.
we appear to be solid but which of the following components is critical for all living things
Answer:
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen
5. Phosphorus
6. Sulfur
Explanation:
Purifying the Five Elements of Our Being. Everything in nature is made up of five basic elements: earth, water, fire, air, and space.
Use this link to explore the niche of a giraffe, then answer the question provided.
Describe the niche of the giraffe.
Answer:
Giraffes have a special niche in the African savanna. They are able to reach a six-foot band of foliage beyond the reach of all other terrestrial browsers except elephants. Their long tongue is useful for grasping leaves in the crowns of trees.
Explanation:
graze
foliage
maintain
open
woodland
oxpecker
parasite
mutualistic relationship
African Savannah is the largest biome situated in the Kalahari region of South Africa. The animals and plants found in African Savannah are zebra, giraffe, and several mammals.
The giraffes have a special niche in the ecosystem of the African savannah.
Giraffes are the tallest organisms, which allow them to feed directly on the foliage and leaves present at a great height. The other animals and small organisms are unable to reach such height.
The Giraffes have long tongues, which make them pull leaves from the branches of the trees.
Thus, giraffes also show a mutualistic relationship with ticks and have a special ecological niche in the savanna.
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explain how oxygen and nutrients are transported by ocean currents
Answer:
Currents play a huge role in marine productivity, through a process called upwelling. ... When currents upwell, or flow up to the surface from beneath, they sweep vital nutrients back to where they're needed most. Nowhere is the link between ocean circulation and productivity more evident than around Antarctica.
Explanation:
FASTEST AND BEST ANSWER GETS BRAINLIEST how many chromosomes do Wisconsin dast plants have?
PLEASE HELP QUICK I GIVE 20 POINTS!!
The Plant Cell
function for each organelle?
organelle:
golgi complex
nuclear membrane
nucleolus
The Animal Cell
function for each organelle?
organelle:
cytoplasm
golgi complex
lysosome
rough endoplasmic reticulum
smooth endoplasmic reticulum
The Golgi complex is involved in modifying and packaging proteins and lipids in both plant and animal cells. The nuclear membrane regulates substance flow in and out of the nucleus, and the nucleolus assembles ribosomes in plant cells. In animal cells, the cytoplasm provides medium for reactions, lysosomes digest waste, RER synthesizes and modifies proteins, and SER synthesizes lipids and stores calcium ions.
Explanation:The functions of the organelles you've inquired about are crucial for the life of the cell. In a plant cell, the Golgi complex modifies, sorts, and packages proteins and lipids for storage or transport out of the cell. The nuclear membrane, also known as the nuclear envelope, encloses the nucleus, providing a barrier that regulates the flow of substances into and out of the nucleus. The nucleolus within the nucleus is responsible for ribosome assembly, which are then transported out to the cytoplasm for protein synthesis.
In an animal cell, cytoplasm is the gel-like substance enclosed within the cell membrane, providing a medium for chemical reactions and helping to support the cell's structure. The golgi complex functions similarly to that in plant cells. Lysosomes contain digestive enzymes that break down waste materials and cellular debris. The rough endoplasmic reticulum (RER) is studded with ribosomes and is the site for protein synthesis and modification, while the smooth endoplasmic reticulum (SER) is involved in the synthesis of lipids, detoxification, and calcium ion storage.
Directions: For each of the following, write either P for pioneer species or C for climax community in the
lines provided.
1. beech-maple forest
2. lichens
3. mosses and ferns
Directions: Complete the events chain about primary succession by placing the following entries in the
correct order.
Volcano erupts.
Animals arrive.
Lava forms new land
composed of rock.
Large plants grow.
Lava cools.
Lichens die and decay.
Soil forms.
Lichens and the forces of wind and
erosion help break down rocks
Answer:
1. C
2. P
3. P
-
Volcano Erupts
Lava Forms New Land
Animals Arrive
Explanation:
The pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire. Meanwhile,the climax community, or climatic climax community, is a historic term for a boreal forest community of plants, animals, and fungi which, through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state.
Final answer:
For the task, the beech-maple forest is a climax community (C), while lichens, and potentially mosses and ferns, are pioneer species (P). In the primary succession events chain, the order begins with a volcanic eruption and ends with the arrival of animals, proceeding through stages where lichens play a crucial role in soil formation.
Explanation:
For the given statements, you should write:
Beech-maple forest - C for climax communityLichens - P for pioneer speciesMosses and ferns - P possibly for pioneer species, but it can depend on the stage of successionCompleting the events chain for primary succession:
Volcano erupts.Lava forms new land composed of rock.Lava cools.Lichens and the forces of wind and erosion help break down rocks.Lichens die and decay.Soil forms.Large plants grow.Animals arrive.Primary succession begins with pioneer species like lichens that can live on new rock surfaces. These organisms help break down the rock into soil, allowing for other species to grow. Over time, a stable climax community establishes, which can be quite different from the initial bare rock environment.
The Himalaya mountains formed from the collision of the India plate and Eurasian plate each carrying continental crust. what type of mountains are the Himalayas?
Answer:
Fold Mountains
Explanation:
"The rugged, soaring heights of the Himalayas, Andes, and Alps are all active fold mountains." - google
Answer:The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today. 225 million years ago India was a large island situated off the Australian coast and separated from Asia by the Tethys Ocean.
Explanation:
Which of the following is the best definition of a population?
O all of the above
O multiple different species living together in a given area
O organisms of the same species living in a given area
O the interaction between the living and nonliving factors in an environment
Answer:
All of the above----------
The correct option is c. organisms of the same species living in a given area. A population consists of organisms of the same species living and interacting in a given area. An example is all angelfish in a specific part of the ocean. Multiple populations can exist within an ecosystem, each representing a single species.
The best definition of a population is organisms of the same species living in a given area.A population consists of all the individual organisms of the same species that live and interact in the same area. For example, all of the angelfish living in the same area of the ocean make up the angelfish population. Different populations inhabit an ecosystem, but each population includes only one species.Thus the correct option is c. organisms of the same species living in a given area
describe the weather on three days this week
Answer:
Monday: It was cloudy
Tuesday: It was windy but clear
Wednesday: It was raining all day
pros and cons about georthermal technology
Answer:
i think
Explanation:
bc i know
What is the current theory about the formation of the solar system?
I need a answer ASAP!!! My test is TIMED
A big bang occurred in the solar system as a result of a fusion reaction. All the matter in the solar system that had been clumped together was shattered and sent flying. As new pieces of matter connected, all the celestial bodies of the solar system were formed.
The solar system began as a cloud of dust and gas that condensed, forming a bulging middle and an outer disk. The bulging middle of the cloud became the sun, and the rest of the dust and gas formed the planets, orbiting the sun in the same plane.
About 14 billion years ago, several supernova events scattered all the known elements throughout the galaxy. The magnetic elements were attracted to each other and formed the early celestial bodies that eventually became the planets of the solar system.
The area of the universe that was to become the solar system went through a period of vast expansion as a result of rapid radioactive decay that left behind clouds of dust and gases. The excess clouds and gases were used to form the various parts of the solar system.
Answer:i cant tell you the answer dont want to give you wrong
Explanation: