Answer:
false....
Explanation:
hopes this helps
Answer:
false
Explanation:
It doesn't take too much time for oxygen to get into cell and carbon dioxide out if cells are too large.
What are the characteristics of the mantle?
[tex] \: \: \: [/tex]
It is mostly solid rock, but less viscous at tectonic plate boundaries and mantle plumesMantle rocks there are soft and able to move plastically (over the course of millions of years) at great depth and pressure. The transfer of heat and material in the mantle helps determine the landscape of Earth.hope it helps
[tex] \: \: \: [/tex]
Answer:
Here's something i found to help.
the blood pressure in the large systemic arteries is greatest during:
Answer:
when blood is pumped out of the heart into the arteries.
Explanation:
Hope its help you!!
in a neuron, sodium and potassium concentrations are maintained by the sodium-potassium exchange pump such that __________.
Answer:
the sodium concentration is higher outside the cell than inside the cell and the potassium concentration is higher inside the cell than outside the cell.
Explanation:
In a neuron, sodium and potassium concentrations are maintained by the sodium-potassium exchange pump such that the sodium concentration is higher outside the cell than inside the cell and the potassium concentration is higher inside the cell than outside the cell.
What is sodium potassium pump?The sodium potassium pump contributes to the maintenance of osmotic equilibrium and membrane potential in cells. Sodium and potassium move in the contrast way of the concentration gradients.
The Na+ K+-ATPase pump establish and maintain a gradient of higher sodium concentrations extracellularly and higher potassium levels intracellularly.
The sodium-potassium pump is critical to the proper functioning of neurons. It aids in the maintenance of ionic concentrations both inside and outside the cell, allowing neurons to fire action potentials, which is the basis for electrical signaling within neurons.
The sodium-potassium exchange pump maintains sodium and potassium concentrations in neurons so that the sodium concentration is higher outside the cell than inside the cell and the potassium concentration is higher inside the cell than outside the cell.
Thus, this way, sodium and potassium concentrations are maintained by the sodium-potassium exchange pump in a neuron.
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A major role of _________ receptors (part of the somatic nervous system) is to help us learn about the environment around us or about the state of our internal environment.
glial cells that surround the neurons in ganglia are:
Answer:
Explanation:
Satellite cells are small glia that surround neurons' sensory ganglia in the ANS. These resemble the astrocytes of the CNS and assist in regulating the external chemical environment. PNS satellite glia are very sensitive to injury and may exacerbate pathological pain.
Glial cells surrounding the neurons of neurons are satellite cells.
What are the functions of glial cells?Glial cells are a type of cell that provide physical and chemical support to neurons and maintain their environment. Located in the central nervous system and peripheral nervous system.
Glial cells outnumber neurons in the brain and outnumber them by a ratio of 3:1. Although glial cells also have complex processes extending from their cell bodies, they are generally smaller than neurons and lack axons and dendrites.
Oligodendrocytes form the myelin sheath around axons. Astrocytes supply neurons with nutrients, maintain their extracellular environment and provide structural support. Microglia clear pathogens and dead cells.
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What are the primary elements of the nervous system responsible for analyzing and transmitting information
Answer:
Neurons
Explanation:
Neurons are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between. Hope this helps :)
Diploid means having Multiple Choice one homologous set of chromosomes. two chromosomes in each somatic cell. two chromosomes in each gamete. three homologous sets of chromosomes. two homologous sets of chromosomes.
Answer:
A diploid cell have two complete set of chromosomes except the sex cell which is haploid
Explanation:
the somatic are diploid gotten from each perent but in the sex cell it is haploid
Walking through a forest you
encounter fallen leaves, dead
organisms, a rotting stump. All of
these can be described as
A. autotrophs.
B. primary consumers.
C. trophic levels.
D. detritus.
Answer:
D
Explanation:
D is really decomposing waste of anytime so I think that’s the answer.
In a forest fallen leaves, dead organisms, a rotting stump. All of these can be described as detritus, hence option D is correct.
What are detritus in the ecosystem?Detritus is a term used in ecology to describe organic stuff that comes from nearby terrestrial populations and falls onto the soil or into bodies of water, including leaves and other plant parts, animal remains, waste products, and other organic trash.
Detritivorous invertebrates, which are prominent elements of almost all ecosystems, eat detritus, which is a significant pool of carbon in the global carbon cycle.
Therefore, detritus food chains, in contrast to terrestrial food chains, begin with dead organic materials rather than producers or autotrophs, hence option D is correct.
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According to the food chain shown, about how much energy from the grasshopper trophic level is transferred to the frog trophic level?
The amount of energy transferred to frog is 10% of the energy contained in grasshopper.
This is a representation of energy levels and distribution in a food chain in an Ecosystem. When a group of organism represent the same level in a food chain, in an ecosystem ,this is trophic level. Food chain represent a linear representation of nutrients and therefore energy distributions in an ecosystem.
Basically, in an ecosystem, there is always reduction in energy transfer from one trophic level to another by 10%. This is because, as the energy is transferred from the producer (green plants) to the primary consumer, the hopper, only 10% of the available energy will pass through to the hopper because 90% of the energy will be used by the green plants for metabolic and other physiologic activities. As this is transferred to the next trophic level, the Frog, this will be reduced (for the same reasons) so that 10% of the energy received by the grasshopper is transferred to the frog.
Practically, if 100,000Kcal of energy was obtained by hopper from the primary producer,10,000kcal(10%) of 100,000 will be transferred to frog.
This 10% occurs at each trophic levels.
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What is the difference between structural and compositional layers of the Earth's
interior?
Answer:
The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite. The Earth has an outer core (liquid) and an inner core (solid).
Explanation:
hope this helps and have a great day
What forms in the areas where oceanic plates diverge and new seafloor is created? (3 points)
Abyssal plains
Continental shelf
Continental slope
Mid-ocean ridge
Answer:
A mid ocean ridge is your answer
Explanation:Divergent boundaries in the middle of the ocean contribute to seafloor spreading. As plates made of oceanic crust pull apart, a crack in the ocean floor appears. Magma then oozes up from the mantle to fill in the space between the plates, forming a raised ridge called a mid-ocean ridge.
the answer is mid ocean ridge
The biological species concept cannot be applied to fossils. Which alternate approach to identifying species would be most useful for classifying fossil organisms? A. an approach based on genetic history B. an approach based on molecular biology C. an approach based on measurable physical traits D. an approach based on use of reproductive barriers
Answer:
C . an approach based on measurable physical traits
in the gel electrophoresis lab, you determined the ________ of three different dna samples.
In the gel electrophoresis lab, you determined the genotype of three different DNA samples.
Gel electrophoresis is a process that allows you to separate fragments of DNA based on size. You place different size fragments of DNA into a gel, then apply current to the buffer surrounding the gel, the DNA will travel through the gel but move at different speeds based on the different fragment sizes. Larger fragments of DNA will move slower than smaller fragment sizes.
Let consider two different alleles:
the bigger allele -- Athe smaller allele -- aThe bigger allele happens to contain a restriction site that is allowed to be cleaved by a restriction enzyme while the smaller allele has a mutation in the restriction site that means that it will not be recognized and cleaved by that same restriction enzyme.
Let us remember that the person will have two copies of this gene and can be:
H0m0zygous dominant AAh0m0zygous recessive aaheterozygous AaAn individual with h0m0zyg0us AA only have versions of the gene that will be cut by the restriction enzymes, each allele producing a small fragment of DNA and a medium-size fragment of DNA
An individual with the genotype aa only has the version of the gene that does not have the restriction site and therefore does not get cut by the restriction enzyme. The DNA sample from this individual will have a single larger fragment of DNA.
When you isolate DNA from heterozygous Aa, half of the DNA isolated has the allele with the restriction site that gets cut into two fragments while the other half will have the allele that does not have the restriction site and remains whole when a restriction enzyme is added.
Therefore, we can conclude that in the gel electrophoresis lab, you determined the genotype of three different DNA samples.
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How many rounds of mitosis produce 64 daughter cells?(1 point)
4
2
6
8
The correct answer is 6 rounds.
Hope this helps!
Answer:
6
Explanation:
Given that breaking bonds requires energy and forming bonds releases energy, explain how we know that cellular respiration releases energy overall?
because it's overall final fee energy value is less than it's initial, meaning that it has a negative free energy amount. therefore, there is a net release of energy in cellular respiration, so we know it releases more energy than it invests into the bonds of its products.
Will give brainliet no file plz
Answer: Hey Hi Where is the question??
how to call repudiation
Answer:
can arise where a party indicates an intention to perform in connection with a contract but only in a manner substantially inconsistent with its obligations
what plant cell organelle performs photosynthesis?
PLEASE HELP QUICKLY!!!!!!!!!!!!!!
Which of the following best describes how you know the matter that makes up the sequoia tree comes from your answer in the previous question.
A. All the energy comes from the sun, so it would make sense that any matter we get would also come ultimately from the sun. Without the sun, no photosynthesis would happen
B. Water and carbon dioxide supply us with the matter and they are the inputs for photosynthesis, and everything starts with photosynthesis
C. Our bodies are made of over 90% water, so we essentially are water which is an input for photosynthesis
D. We are made of carbon-based molecules and that carbon needs to come from somewhere, so the carbon comes from the glucose we eat which came from the carbon dioxide.
E. Glucose is eaten by us which is then used to build oxygen and carbon dioxide molecules that will get released back into the air. We are able to make air which is an example of matter/mass in our biosphere
I know it's either D or E
Answer:
D
Explanation:
My intuition told me so
which division of the autonomic nervous system is responsible for conserving energy and replenishing nutrient stores?
Answer:
parasympathetic division
Explanation:
The parasympathetic system functions during rest of the somatic system and is responsible for anabolism and restoration of energy stores.
QUESTION: If there was no atmosphere around Earth, how would that impact your life in the planet?
Have you ever wondered what would happen if Earth lost its atmosphere? It's believed that the planet is slowly losing its atmosphere, bit by bit, as it bleeds off into space. But what if Earth instantly lost its atmosphere, all at once? Just how bad would it be? Would people die? Would everything die? Could the planet recover?
What Would Happen?
Here's a breakdown of what could be expected:
It would be silent. Sound requires a medium to transmit waves. You could feel vibrations from the ground, but you wouldn't hear anything.
Birds and planes would fall from the sky. Although we can't see air (except clouds), it has mass that supports flying objects.
The sky would turn black. It's blue because of the atmosphere. You know those pictures taken from the Moon? The Earth's sky would look like that.
All unprotected plant and animal life on the Earth's surface would die. We can't survive long in a vacuum, which is what we'd have if the atmosphere suddenly vanished. It would be much like being "spaced' or shot out of an airlock, except the initial temperature would be higher. Eardrums would pop. Saliva would boil. But you wouldn't die instantly. If you held your breath, your lungs would pop, which would be the quickest (albeit most painful) death. If you exhaled, you'd pass out in about 15 seconds and die in around three minutes. Even if you were handed an oxygen mask, you wouldn't be able to breathe. This is because your diaphragm uses the pressure difference between the air inside your lungs and outside your body to inhale.
Let's say you have a pressure suit and air. You'd live, but you'd get a massive sunburn on exposed skin because the Earth's atmosphere is what filters solar radiation. It's hard to say how much trouble you'd be in from this effect on the dark side of the planet, but being in direct sunlight would be severe.
The rivers, lakes, and oceans would boil. Boiling occurs whenever vapor pressure of a liquid exceeds external pressure. In a vacuum, water readily boils, even if the temperature is warm. You can test this yourself.
Although water would boil, the water vapor would not fully replenish the atmospheric pressure. An equilibrium point would be reached where there would be enough water vapor to prevent the oceans from boiling off. The remaining water would freeze.
Eventually (long after surface life had died), solar radiation would break atmospheric water into oxygen, which would react with carbon on the Earth to form carbon dioxide. The air would still be too thin to breathe.
The lack of atmosphere would chill the Earth's surface. We're not talking absolute zero cold, but the temperature would drop below freezing. Water vapor from the oceans would act as a greenhouse gas, raising the temperature. Unfortunately, the increased temperature would allow more water to transition from the sea into the air, likely leading to a runaway greenhouse effect and making the planet more like Venus than Mars.
Explanation:
Organisms that need air to breathe would die. Plants and land animals would die. Fish would die. Most aquatic organisms would die. However, some bacteria could survive, so losing the atmosphere wouldn't kill all life on Earth. Chemosynthetic bacteria wouldn't even notice the loss of atmosphere.
Volcanoes and geothermal vents would continue to pump out carbon dioxide and other gases to add to the water. The most significant difference between the original and new atmosphere would be the much lower abundance of nitrogen. Earth could replenish some nitrogen from meteor strikes, but most of it would be lost forever.
Could Humans Survive?
There are two ways human beings could survive losing the atmosphere:
Build radiation-shielded domes on the Earth's surface. The domes would need a pressurized atmosphere and would need to support plant life. We would need time to build biodomes, but the result would not be much different from trying to survive on another planet. Water would remain, so there would be a source of oxygen.
Build a dome under the sea. The water could provide pressure and filter out some solar radiation. We wouldn't want to filter out all radiation because we'd probably want to grow plants (though maybe it would be possible to learn some tasty ways to prepare bacteria as food).
hllo baby
good night
Answer:
Okay
Explanation:
help please it's biology
Answer:
look
Explanation:
1a. Dendrite
b. cell body
c. nucleus
d. axon
e. soma
2. c, b
3. Vacoule and chloroplast
4. nerve impulse travels from left to right.
5. Sensory neuron sends electrical impulses to a relay neuron.
6. Respiration. Due to respiration in the mitochondria glucose molecules are broken down to release energy.
dna is cut at __ sequences by restriction enzymes.
Answer:
the
Explanation:
DNA which is a genetic material is cut at restriction site or Target sequence
What is restriction enzymes?Restriction enzymes refers to protein that is produce by bacteria and recognizes a DNA by cleaving to it and cuts the DNA only at that specific site, which is known as restriction site or target sequence.
DNA is the genetic constituent of a living organism.
Therefore, DNA is cut at restriction site or Target sequence
Learn more about restriction enzymes below.
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Gender roles and gender stereotypes are
A. the same thing.
B. decided on by individuals.
C. decided on by society.
D. more important than a person's gender identity.
E. Other:
the movement of water into the atmosphere from plants is
Answer:
Transpiration
Explanation:
Process through which plants lose water into the atmosphere
Answer:
Transpiration
Explanation:
The process by which water moves into the atmosphere from plants is transpiration
DNA is coded to RNA, which must travel from the nucleus to the cytoplasm to be read. Why does the cell need to transcribe the DNA into RNA rather than copying the DNA directly?(1 point)
DNA requires too much energy to code; building RNA is more efficient.
DNA cannot be copied; it must be translated to RNA and then back to DNA.
DNA is double stranded and cannot fit through the nuclear membrane; RNA is single stranded.
DNA cannot be read by ribosomes; they can only read RNA.
Answer:DNA is double stranded and cannot fit through the nuclear membrane; RNA is single stranded.
Explanation:
DNA is double stranded and cannot fit through the nuclear membrane; RNA is single stranded. DNA could get damaged because of the osmotic nature of cytoplasm. Therefore, option (C) is correct to mitigate he damage.
What is transcription?The proteins are produced by cells by the transcription and translation of certain genes from their DNA into molecules of messenger RNA (mRNA), chains of amino acids, and finally fully functioning proteins.
The DNA would need to go to the cytoplasm in order to directly make proteins. Because of the osmotic properties of cytoplasm, DNA may become damaged during the translocation process. The cellular machinery does not directly make proteins from DNA in order to reduce the harm.
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An ocean pH change from 8.2 to 8.0 is NOT significant as the .2 change is very small.
So far, the ocean's pH has dropped from about 8.2 in preindustrial times to around 8.05. This seemingly small change may already be affecting ocean organisms and future CO2 emissions could lower ocean pH even further
What did Allan Savory notice about the lands grazed by wild animals at the Africa Centre for Holistic Management
Answer:
Allan Savory noticed that grasslands co-evolved with large numbers of migrating ruminants, and therefore are co-dependent on each other's survival. These animals grouped together and constantly bunched due to the predator-prey connection, eat the grasses following the seasons throughout their migration in arid regions (Brittleness scale, of Non-Brittle to Brittle environments).
As they move, they drop nutrient-rich dung and urine, while trampling organic litter (live or dead grasses, leaves, etc) and seeds into the soil. These actions break down materials into the surface, providing more covered soil and keeping materials from chemically decomposing (oxidation, as opposed to the fast biological decomposition that occurs in areas with consistent rainfall(Non-Brittle)). The true testament to his insights of Holistic Management re: grasslands is known as the 4th Key Insight: That time, rather than numbers governs over-grazing or over-trampling.
The important component here is that the time exposed to these animals plays the significant role in whether you have healthy grasslands, not the number of animals exposed to the area of consideration. The amount of "rest" (time) for grasses between eating or trampling is just as crucial as the time in an exposure.
Explanation:
Explained in his book and courses under "Holistic Management", by Allan Savory and Jody Butterfield, and Sam Bingham
NEED IT ASAP!!! Which statement about the specific immune response is FALSE?
Clonal selection creates short-lived effector cells to destroy the specific antigen.
Clonal selection produces memory cells that are long-lived and can recognize the antigen in the future.
It takes about two weeks for memory cells to respond to an antigen.
The maximum response from effector cells takes about two weeks after the first time the body has been exposed to an antigen.
Memory cells divide to produce effector cells when they are exposed to their specific antigen.
Answer:
The answer is: Clonal selection produces memory cells that are long-lived and can recognize the antigen in the future.
Explanation: