Answer:
Heat
Explanation:
Hydrogen bonds are heat sensitive so in pcr heat is use as tool to break them
Explain the similarities and differences that exist between extinct species and humans.
Answer:
Difference Between Endangered Species and Threatened Species. ... what are the other causes apart from humans that can drive an entire species to ... When a species exist no longer, it is considered as extinct.
The cardiovascular system is comprised of 2 body systems that work together to...
send electrical signals to our lymphatic system to fight of pathogens.
B. provide movement for the body from responses and stimulus to and from the brain.
C.
pump blood, which carries nutrients and oxygen to the cells of the body.
D. breaks down nutrients to circulate towards our cells for ATP.
Answer:
C.
pump blood, which carries nutrients and oxygen to the cells of the body.
Pressure is the driving force behind water movement in a(n)
A aquifer
B artesian well
C drilled well
D river
Pressure is the driving force behind water movement in an aquifer.
What is aquifer ?A layer of porous rock, soil, or gravel that can store and convey water is known as an aquifer.
Therefore, The water table level and the hydraulic conductivity of the aquifer's composition can both affect the pressure within it. Water movement in an aquifer is fueled by this pressure differential which can lead water to flow from high-pressure to low-pressure regions.
Learn more about aquifer here : brainly.com/question/15921008
#SPJ1
Why is soil considered a non-renewable resource?
A)Soil can only be formed by natural processes over hundreds or thousands of years.
B)There is a limited quantity of nutrients in soil.
C)Soil is no longer made in nature and can never be replaced.
D)The cost of creating soil is too high for it to be a reasonable option.
Answer: A)Soil can only be formed by natural processes over hundreds or thousands of years.
Explanation: Soil can take 500 years or more for an inch of topsoil.
Answer:
A is the answer my friend.
When you graph velocity versus time (a velocity-time graph), what variable is
on the y-axis?
A. Velocity
B. Acceleration
c. Displacement
D. Time
Help pleaseee
Answer:
i dont know
Explanation:
i really dont know im just a 12 year old kid struggling with math
Using water more efficiently _______.
a.
protects the environment
b.
causes the loss of natural pollution filters
c.
increases water contamination
d.
all of the above
Answer:
a. protects the environment.
Explanation:
Using water efficiently means using it wisely and not wasting it. When we use water more efficiently, we reduce the amount of water we consume, which helps to conserve water resources. This is important because water is a limited resource, and by using it efficiently, we can ensure enough water is available for future generations.
By using water more efficiently, we can also protect the environment. Water is essential for many ecosystems and habitats, and by conserving water, we can help maintain the balance of these ecosystems. Additionally, using water efficiently can reduce the need for energy-intensive water treatment and distribution processes, which can help reduce greenhouse gas emissions and mitigate climate change.
So, using water more efficiently helps protect the environment but also helps conserve water resources for the future.
Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.
Please help!!!
why did the ecosystem in the yellow stone river valley change so much from the mid-1920s to the mid-1990's?
Answer:
Explanation:
A sequence of flowing lava, pyroclastic flows, volcanic eruptions, caldera-forming events, and earthquakes changed the landscape of Yellowstone forever. The pressure exerted by the magma chamber has resulted in measurable ground deformation in certain parts of Yellowstone known as resurgent pressure domes.
Fire Activity also causes the Yellowstone to change. As the number of very large wildfires and total acres burned annually increases, there is an increasing frequency of warm spring and summer temperatures, reduced winter precipitation, and early snowmelt in the Western United States during the last 20 years.
In 1995, the wolf population increased in Yellowstone, causing the deer population to decrease and to change their behavior. When threatened by wolves, deer graze less and move about to aerate the soil.
In the 70 years since the wolves left Yellowstone, the entire ecosystem had collapsed into chaos, with coyotes running riot, and elks overgrazing willows and aspens. Without those trees, songbirds declined, beavers could not build their dams, and riverbanks eroded.
The number of living organisms in a particular area is _____. population density population community carrying capacit
Answer:
Hey!
Your answer is definitely POPULATION!
Explanation:
HOPE THIS HELPS!!
In angiosperms, what is the name of the outer epidermal layer that protects the plant body?
Answer:
cuticle
Explanation:
The body regulates excretion of which of the following wastes?
sweat
hormones
glucose
insulin
ANSWER IS SWEAT
Answer:
This person is in fact correct.
given the genotype frequencies below, what is the frequency of the v1 allele in this population? give your answer to one decimal place. f[v1v1]
0.6 + 0.5(0.2) = 0.7. We once more examine each person's genotype, count the copies of each allele, then divide that number by the total number of gene copies to determine the allele frequencies.
A population becomes fixed for that allele when the allelic frequency hits 1.0, at which point there is only one remaining allele in the population. The other allele is lost forever. Random genetic drift halts at a locus where an allele has either become fixed or lost in a population. By dividing the total number of copies of all the alleles at that specific genetic locus in the population by the number of times the allele of interest.
The complete question is:
Given the genotype frequencies below, what is the frequency of the V1 allele in this population? Give your answer to one decimal place.
f[V1V1] = 0.6
f[V1V2] = 0.2
f[V2V2] = 0.2
Learn more about genotype here:
https://brainly.com/question/29156144
#SPJ4
How does the structure of a cell suggest its function? List three examples.
I hope this answer helps you!!
Fill the blank
Two heterozygous parents have ___________chance of contributing one of their alleles to each offspring
Answer:
Two heterozygous parents have a 50% chance of contributing one of their alleles to each offspring.
Explanation:
Individuals who are heterozygous for a specific trait have two different alleles in the gene that determines that trait. This characteristic makes their chances of contributing each of their alleles to the offspring 50%.
The alleles of a gene are distributed in the gametes by the process of meiosis, which results in daughter cells with half the genetic charge, so each gamete can only have one copy of the allelic pair of a gene.
On the other hand, if an individual has two equal alleles for a characteristic in a gene, he has a 100% chance of passing that allele on to his descendants.
What has the study of fossils allowed scientists to do?
A. Describe past environments and the history of life.
B. Study present ocean temperatures at different depths.
C. Analyze the chemical compositions of sedimentary rocks and minerals.
D. Predict which organisms will become extinct in the future
Answer:
A.
Explanation:
I THINK it is A, because fossils are decomposed animal remains, right? So what I'm saying is that the answer is A, because the structure of the fossil could help tell how the creature (or plant) adapted in order to survive in its surroundings.
what is signal transduction?
Answer:
Signal transduction is the process by which a chemical or physical signal is transmitted through a cell as a series of molecular events, most commonly protein phosphorylation catalyzed by protein kinases, which ultimately results in a cellular response.
Explanation:
Identity each event as the result of mechanical weathering or chemical weathering.
mechanical weathering chemical weathering
The minerals in a marble statue react
with water to form acids and pores in
the structure.
A piece of rock crumbles after being
constantly thrashed by strong waves.
Industrial runoff forms cracks in a
rocky structure in its path.
The rocks in a region are streaked
orange after being exposed to
repeated rains.
The events described involve both mechanical and chemical weathering processes, highlighting the complex nature of how weathering affects geological structures.
The events can be identified as the result of mechanical weathering or chemical weathering as follows:
The minerals in a marble statue react with water to form acids and pores in the structure - This is an example of chemical weathering. The water reacts chemically with the minerals in the marble, causing them to dissolve and form acids. These acids further react with the marble, leading to the formation of pores and overall degradation of the statue's structure.
A piece of rock crumbles after being constantly thrashed by strong waves - This is an example of mechanical weathering. The constant thrashing of strong waves exerts physical force on the rock, causing it to break apart or crumble. This type of weathering occurs due to mechanical forces like abrasion, pressure, or impact that physically break down the rock into smaller pieces.
Industrial runoff forms cracks in a rocky structure in its path - This is a combination of chemical and mechanical weathering. The industrial runoff may contain acidic or corrosive substances that chemically react with the minerals in the rock, leading to their dissolution or weakening. The cracks in the rocky structure may also be a result of the mechanical force exerted by the flowing runoff, causing physical fractures in the rock.
The rocks in a region are streaked orange after being exposed to repeated rains - This is an example of chemical weathering. The repeated rains introduce water into the rocks, which may contain dissolved iron compounds. Over time, these iron compounds oxidize in the presence of water and oxygen, leading to the formation of orange-colored iron oxide minerals, such as rust. The streaking of rocks with orange indicates the chemical transformation of the minerals due to the weathering process.
In summary, the events described involve both mechanical and chemical weathering processes, highlighting the complex nature of how weathering affects geological structures. Mechanical weathering involves physical forces breaking down rocks, while chemical weathering involves chemical reactions leading to the alteration or dissolution of minerals.
Know more about chemical transformation here:
https://brainly.com/question/31290752
#SPJ8
Which is greater 1,000 ml or 1,000 cm?
Answer:
Neither, they are equal.
1,000 cm3 = 1000 mL
Match each organ with the germ layer from which it is formed.
The organ with the germ layer is formed Ectoderm, Mesoderm, and Endoderm.
Matching organs with the germ layer from which they are formed:
1. Ectoderm:
Skin (including the epidermis and nervous system): The ectoderm is the outermost germ layer and gives rise to the epidermis, which is the outer layer of the skin. It also gives rise to the nervous system, including the brain, spinal cord, and peripheral nerves. The ectoderm is responsible for the formation of structures such as hair, nails, sweat glands, tooth enamel, the lens of the eye, and the inner ear.
2. Mesoderm:
Bones: The mesoderm is the middle germ layer and gives rise to the skeletal system, including bones and cartilage.Muscles: The mesoderm also forms the muscular system, including smooth, skeletal, and cardiac muscles.Connective tissue: Connective tissues such as tendons, ligaments, and adipose tissue are derived from the mesoderm.Kidneys: The kidneys, along with the urinary system, develop from the mesoderm.Reproductive organs: The reproductive organs, including the gonads, develop from the mesoderm.Blood vessels: The mesoderm forms the cardiovascular system, including blood vessels, the heart, and blood cells.Spleen: The mesoderm also gives rise to the spleen, a part of the immune system.3. Endoderm:
The lining of the digestive tract: The endoderm is the innermost germ layer and gives rise to the epithelial lining of the digestive tract, including the stomach, intestines, and liver.The lining of the respiratory tract: The endoderm also forms the epithelial lining of the respiratory tract, including the lungs.Pancreas: The endoderm gives rise to the pancreas, which plays a key role in digestion and blood sugar regulation.Thyroid gland: The thyroid gland, involved in hormone production and metabolism, develops from the endoderm.Bladder: The lining of the urinary bladder is derived from the endoderm.Tonsils: The endoderm contributes to the development of the tonsils, which are part of the immune system.Thymus: The endoderm also forms the thymus, an organ involved in immune cell maturation.know more about Ectoderm here:
https://brainly.com/question/20704353
#SPJ8
What happened during interphase?
Answer:
During interphase, the cell grows and DNA is replicated. ... During interphase, the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase. During the mitotic phase, the duplicated chromosomes are segregated and distributed into daughter nuclei.
Explanation:
What change makes it difficult for organisms to survive
Answer:
if an animal lives in the desert and its moved to a cold place it can die cuz its not where it should be
Explanation:
Background: You are a senior scientist at the CDC. While reviewing reports you see that there is a new infection that has surfaced in a local county. The agent who managed the incident wrote this in their notes:
“…..Infection spreads rapidly through physical contact. Once on the skin, this organism is able to break down keratin and infect the lower portions of the dermis. This organism has a Gram+ cell wall, is circular in appearance and very small. While not a traditional medication, the patient responded well to a drug that targeted mitochondria….” Do you think that this is the best medication to use on the patient? Explain why this medication would or would not work.
Thanks!
D
4) This diagram shows a food chain from a desert ecosystem in Arizona. The arrows show
how the matter eaten by organisms moves through the food chain.
western
diamondback
rattlesnake
Select each organism below that is a primary consumer in this food chain.
brittlebush
pallid-winged
grasshopper
ubmit
brittlebush
grasshopper mouse
red-tailed hawk
grasshopper
mouse
pallid-winged
grasshopper
red-talled
hawk
western diamondback
rattlesnake
Question
answere
28
Time
elapsed
PAUSE
Challeng
Stage 3 of
Get 5 corred
in a row
The primary consumers in the food chain are the organisms that eat the producers, which in this case are the brittlebushes. The primary consumers are the pallid-winged grasshoppers.
The other organisms in the food chain are secondary consumers (grasshopper mouse), tertiary consumers (red-tailed hawk), and apex predators (western diamondback rattlesnake).
Here is a diagram of the food chain with the primary consumers highlighted in green:
brittlebush (producer)
----------------------->
pallid-winged grasshopper (primary consumer)
----------------------->
grasshopper mouse (secondary consumer)
----------------------->
red-tailed hawk (tertiary consumer)
----------------------->
western diamondback rattlesnake (apex predator)
To know more about primary consumers:
https://brainly.com/question/15029358
#SPJ1
How is a reference point defined?
A. The initial position of an object from which its motion is described
B. The central point on a coordinate plane
C. The point where the direction the object is moving in changes
OD. The final position of an object when it is no longer in motion
SUBMIT
A reference point is defined as the initial position of an object from which its motion is described.
What is Reference point?This is used as a standard for evaluation or measurement of properties in a body.
Option A was chosen because the motion of the object is described through comparison with the initial position.
Read more about Reference point here https://brainly.com/question/20630466
#SPJ1
An evil villain wants to broadcast a message to everyone on Earth. They are using satellites for the communication process. For them, money is not an option, only their ultimate goal of world domination. If they are able to place their satellites wherever they want, how many satellites do they need to broadcast their evil message to everyone on Earth?
2
1
4
3
They will require one satellite to broadcast their evil message to everyone on Earth.
What is a Satellite?This is an object which receive signals from Earth and to retransmit them back to the people.
Since cost isn't an issue then a powerful satellite can be bought and used to send the message to everyone.
Read more about Satellite here https://brainly.com/question/18496962
#SPJ1
What causes waves to occur in the ocean?
Answer:
Wind
Explanation:
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.
Answer:
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water.
Explanation:
Photosynthesis is performed in order to
A) build proteins in plants.
B) A and C
C) store chemical energy.
D) make ATP for humans.
B
Explanation:
Build protiens in plants and store chemical energy.
Which material would result in the least amount of energy transfer?
A reflector that is bright in color and smooth.
A reflector that is dark in color and smooth.
An absorber that is bright in color and rough.
An absorber that is dark in color and rough.
The least amount of energy transfers by a reflector that is dark in color and rough is the correct option D.
A common example of energy transfer that we see in lifestyle is the transfer of kinetic energy—energy-related to motion—from one moving object to a stationary object via work.
Thermal energy transfers occur in three ways: ConductionConvectionRadiationEnergy can't be created or destroyed, meaning that the entire amount of energy within the universe has always been and can always be constant.
Energy is transferred by one among the subsequent four sorts of energy pathways:
Mechanical work – a force moving an object through a distanceTherefore, the correct option is D means a reflector that is dark in color and rough results in the least amount of energy transfer.
Learn more about the material of energy transfers here:
https://brainly.com/question/892608
Answer:
I think the answer is A!
Have a good day!
B. Population Dynamics Symbiotic Relationships
Ticks
Ticks belong to a family called Acarina, which also contains mites. Ticks eat by taking blood from
other organisms such as wallabies, lizards, echidnas and occasionally humans. In humans this can
lead to symptoms such as itching, head aches and in extreme cases flu like symptoms, facial
paralysis, and meat allergy.
1. Identify the relationship a tick has with its host. Justify your answer [3]
Answer:
Parasitism
Explanation:
Parasitism is a form of relationship in which one of the organism is being harmed while the other benefits. The organism being harmed is usually called the HOST while the organism that benefits is called PARASITE. Parasites often inflict certain health-related conditions on their hosts.
According to this question describing the mode of feeding of ticks, they are said to eat by taking blood from other organisms such as wallabies, lizards, echidnas and occasionally humans, which are all HOSTS.
In human hosts, this relationship with ticks can lead to symptoms such as itching, head aches and in extreme cases flu like symptoms, facial paralysis, and meat allergy etc. From the description above, it is clear that TICK has a PARASITIC RELATIONSHIP with its host as it brings only harm to them and benefits itself.
Forested floodplain wetlands benefit from periodic flooding from rivers. When floodwaters spill into the wetland, they bring water and nutrients and leave both behind. But humans have often cut off floodplains from rivers by building roads, levees, berms, etc. Think about what would happen if a river could no longer flood into these areas. How would the resulting increased amount of water and nutrients in the river affect soils, hydrology, and life downstream?
The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.
If a river can no longer flood into forested floodplain wetlands due to human interventions, it would have significant consequences for the downstream areas in terms of soils, hydrology, and life.Without periodic flooding, the increased amount of water and nutrients in the river would not be able to disperse and be deposited in the floodplain wetlands. As a result, downstream soils would experience a decrease in nutrient inputs, leading to decreased fertility and altered composition. The absence of regular flooding would disrupt the natural hydrological cycle, reducing the recharge of groundwater and altering the flow patterns in the river system. This could result in decreased water availability, increased erosion, and changes in the overall ecosystem dynamics downstream.The disruption of nutrient flows and hydrological patterns would also have a significant impact on the life forms downstream. Aquatic plants, fish, and other organisms that depend on floodplain wetlands for breeding, feeding, and shelter would face habitat loss and reduced food availability. This, in turn, could disrupt the food chain and impact the abundance and diversity of aquatic and terrestrial species in the downstream areas.The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.For more such questions on flooding
https://brainly.com/question/31808166
#SPJ8